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Journal articles on the topic 'Magneto-dielectric composites'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Galizia, Pietro, Maksimas Anbinderis, Robertas Grigalaitis, Juras Banys, Carlo Baldisserri, Giovanni Maizza, and Carmen Galassi. "Magneto-dielectric characterization of TiO2-CoFe2O4 derived ceramic composites." Processing and Application of Ceramics 12, no. 4 (2018): 350–56. http://dx.doi.org/10.2298/pac1804350g.

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Dielectric permittivity (??), magnetic permeability (??) and dielectric and magnetic loss (tan ?? and tan ??, respectively) of magneto-dielectric cobalt ferrite-titania (CFO-TO) ceramic composites are determined from 200 to 300MHz. The four different combinations of phases - that can be produced in the sintered composite, according to the starting CFO/TO molar ratio - allow to tune the macroscopic permittivity and permeability. For the first time impedance, miniaturization and magneto-dielectric loss of the four classes of composites are calculated and discussed. The displayed miniaturization factors between 4.4 and 8.2 in the very-high frequency (VHF) range corroborate their potential application as magneto-dielectric substrate materials for antennas. Remarkably, the ceramic composites characterized by 2 vol.% and 3 vol.% of CFO and TO, respectively, dispersed in Fe2CoTi3O10 (FCTO) matrix display a magneto-dielectric loss lower than 0.07 and a miniaturization factor of 4.8.

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2

Bhoi, Krishnamayee, Smaranika Dash, Sita Dugu, Dhiren K. Pradhan, Anil K. Singh, Prakash N. Vishwakarma, Ram S. Katiyar, and Dillip K. Pradhan. "Investigation of the Phase Transitions and Magneto-Electric Response in the 0.9(PbFe0.5Nb0.5)O3-0.1Co0.6Zn0.4Fe1.7Mn0.3O4 Particulate Composite." Journal of Composites Science 5, no. 7 (June 24, 2021): 165. http://dx.doi.org/10.3390/jcs5070165.

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Multiferroic composites with enhanced magneto-electric coefficient are suitable candidates for various multifunctional devices. Here, we chose a particulate composite, which is the combination of multiferroic (PbFe0.5Nb0.5O3, PFN) as matrix and magnetostrictive (Co0.6Zn0.4Fe1.7Mn0.3O4, CZFMO) material as the dispersive phase. The X-ray diffraction analysis confirmed the formation of the composite having both perovskite PFN and magnetostrictive CZFMO phases. The scanning electron micrograph (SEM) showed dispersion of the CZFMO phase in the matrix of the PFN phase. The temperature-dependent magnetization curves suggested the transition arising due to PFN and CZFMO phase. The temperature-dependent dielectric study revealed a second-order ferroelectric to the paraelectric phase transition of the PFN phase in the composite with a small change in the transition temperature as compared to pure PFN. The magnetocapacitance (MC%) and magnetoimpedance (MI%) values (obtained from the magneto-dielectric study at room temperature (RT)) at 10 kHz were found to be 0.18% and 0.17% respectively. The intrinsic magneto-electric coupling value for this composite was calculated to be 0.14 mVcm−1Oe−1, which is comparable to other typical multiferroic composites in bulk form. The composite PFN-CZFMO exhibited a converse magneto-electric effect with a change in remanent magnetization value of −58.34% after electrical poling of the material. The obtained outcomes from the present study may be utilized in the understanding and development of new technologies of this composite for spintronics applications.

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3

Cheng, Zhi Hong, Feng Zhang, An Ping Huang, and Zhi Song Xiao. "Magneto-Dielectric Properties of Fe₃O₄/TiO₂/PTFE Composites and Antenna Simulation." Materials Science Forum 787 (April 2014): 352–56. http://dx.doi.org/10.4028/www.scientific.net/msf.787.352.

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In this paper, a novel composite of magneto-dielectric mixture Fe3O4/TiO2 filled polymer PTFE was synthesized for a compact antenna application. Magnetic permeability, dielectric permittivity and related loss were measured and optimized. A planar patch antenna performance based on these composites with a center frequency at 1 GHz was simulated. The simulated antenna performances such as impedance bandwidth and radiation efficiency indicated that the antenna fabricated by this proposed composite could exhibit a better electrical property than that of conventional antenna printed on dielectric material.

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4

Devidas, G. B., Sunar Abdul Khader, Asiya Parveez, Nityananda Das, and T. Sankarappa. "Dielectric Studies of Ferrimagnetic-Piezoelectric Composites." Materials Science Forum 1019 (January 2021): 129–34. http://dx.doi.org/10.4028/www.scientific.net/msf.1019.129.

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Magneto-electric composites of two distinct phases, ferrimagnetic-piezoelectric system with general compositional formula (x) ferromagnetic + (1-x) piezoelectric were synthesized using a hybrid technique, mechano-chemical method by sintering the mixtures of piezo-electric BaTiO3 (BTO) and ferri-magnetic Mg0.2Cu0.5Zn0.3Fe2O4 (MCZF). Here, ferri-magnetic phase component MCZF (Mg0.2Cu0.5Zn0.3Fe2O4) was prepared using auto-combustion method, whereas piezo-electric BTO was procured commercially from Sigma-Aldrich. Here, the general composition of composites is given by (x) Mg0.2Cu0.5Zn0.3Fe2O4+(1-x) BaTiO3(x=15%, 30% and 45%). Presences of two phases in these magneto-electric composites were probed using X-ray diffraction (XRD) studies. Peaks observed in the XRD spectrum indicated spinel cubic structure for MCZF ferrite and tetragonal perovskite structure for BTO and, both spinel and pervoskite structures for synthesized composites. Micro-structure of the samples has been investigated using Field Emission Scanning Electron Microscope (FESEM). Frequency dependent dielectric properties of synthesized composites were measured from 100 Hz to 1 MHz at room temperature using a precision HIOKI make LCR HI-TESTER. Dielectric dispersion was observed at lower frequencies for the synthesized composites.

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5

Vural, M., O. Gerber, B. P. Pichon, S. Lemonnier, E. Barraud, L. C. Kempel, S. Begin-Colin, and P. Kofinas. "Stretchable magneto-dielectric composites based on raspberry-shaped iron oxide nanostructures." Journal of Materials Chemistry C 4, no. 12 (2016): 2345–52. http://dx.doi.org/10.1039/c6tc00419a.

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6

Vural, Mert, Benjamin Crowgey, Leo C. Kempel, and Peter Kofinas. "Nanostructured flexible magneto-dielectrics for radio frequency applications." J. Mater. Chem. C 2, no. 4 (2014): 756–63. http://dx.doi.org/10.1039/c3tc32113d.

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7

Chand Verma, Kuldeep, S. K. Tripathi, and R. K. Kotnala. "Magneto-electric/dielectric and fluorescence effects in multiferroic xBaTiO3–(1 − x)ZnFe2O4 nanostructures." RSC Adv. 4, no. 104 (2014): 60234–42. http://dx.doi.org/10.1039/c4ra09625h.

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8

Rather, Gowher Hameed, Mehraj ud Din Rather, Nazima Nazir, Afreen Ikram, Mohd Ikram, and Basharat Want. "Particulate multiferroic Ba0.99Tb0.02Ti0.99O3 – CoFe1.8Mn0.2O4 composites: Improved dielectric, ferroelectric and magneto-dielectric properties." Journal of Alloys and Compounds 887 (December 2021): 161446. http://dx.doi.org/10.1016/j.jallcom.2021.161446.

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9

Khader, S. Abdul, T. Sankarappa, T. Sujatha, J. S. Ashwajeet, and R. Ramanna. "Structural and Dielectric Studies on Magneto Electric Nano-composites." Materials Today: Proceedings 2, no. 9 (2015): 4334–43. http://dx.doi.org/10.1016/j.matpr.2015.10.022.

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10

Lin, Ying, Xiao Liu, Haibo Yang, Fen Wang, and Chun Liu. "Electromagnetic properties of laminated Ni0.5Ti0.5NbO4-Bi0.4Y2.6Fe5O12 magneto-dielectric composites." Journal of the European Ceramic Society 36, no. 14 (November 2016): 3363–68. http://dx.doi.org/10.1016/j.jeurceramsoc.2016.05.029.

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11

RAMANA, M. VENKATA, N. RAMAMANOHAR REDDY, K. V. SIVA KUMAR, V. R. K. MURTHY, and B. S. MURTY. "MAGNETO-ELECTRIC EFFECT IN MULTIFERROIC Ni0.93Co0.02Mn0.05Fe1.95O4-δ/PbZr0.52Ti0.48O3 PARTICULATE COMPOSITES: DIELECTRIC, PIEZOELECTRIC PROPERTIES." Modern Physics Letters B 25, no. 05 (February 20, 2011): 345–58. http://dx.doi.org/10.1142/s0217984911025742.

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Magnetoelectric composites have been synthesized by sintering mixtures of highly piezoelectric component Pb ( Zr 0.52 Ti 0.48) O 3, PZT and highly magnetostrictive piezomagnetic component Ni 0.93 Co 0.02 Mn 0.05 Fe 1.95 O 4-δ, NCMF. These composites with generic formula (1 - x) PZT + x Ni 0.93 Co 0.02 Mn 0.05 Fe 1.95 O 4-δ, where x varies as 0.1, 0.3 and 0.5 mole fractions, were prepared from the powders of the pure components by the conventional ceramic route. The presence of two phases in multiferroic was confirmed by XRD technique. The variation of dielectric constant and dissipation factor, as a function of frequency from 100 Hz to 1 MHz and in the temperature range of 30–500°C were studied. The piezoelectric d33 coefficient of these composites was also studied in these composites. The magnetoelectric (ME) output voltage was measured in terms of the dE/dH as a function of magnetic bias field. A high value of ME output (1200 mV/Oe · cm) was obtained in the composite containing 70% ferroelectric phase ( PbZr 0.52 Ti 0.48 O 3) and 30% ferrite phase ( Ni 0.93 Co 0.02 Mn 0.05 Fe 1.95 O 4-δ). These multiferroic particulate composites are used as sensors and transducers.

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12

Huang, Ji Quan, Pi Yi Du, Gao Rong Han, and Wen Jian Weng. "Microstructure and Properties of Ni_0.5Zn_0.5Fe₂O₄-BaTiO₃ Ceramic." Key Engineering Materials 336-338 (April 2007): 779–82. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.779.

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Ni0.5Zn0.5Fe2O4-BaTiO3 composites were prepared by calcining Ni0.5Zn0.5Fe2O4 with BaTiO3 at 1220°C for 3 h. Both μ′ and μ″ of the composites decrease rapidly, but the cut-off frequency shifts to higher level with increasing BaTiO3 content. The dielectric constant of the composites increases quickly with increasing BaTiO3 content below 50% and keeps a high and nearly unchangeable value with increasing BaTiO3 above 50%. The composites with BaTiO3 content between 20% and 40% are suitable to use for the magneto-electric devices under high applied frequency due to its high permeability and low dielectric loss.

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13

Dzunuzovic, Adis, Mirjana Vijatovic-Petrovic, Nikola Ilic, Jelena Bobic, and Biljana Stojanovic. "Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites." Processing and Application of Ceramics 13, no. 1 (2019): 104–13. http://dx.doi.org/10.2298/pac1901104d.

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Ni-Zn ferrites, with the general formula Ni1-xZnxFe2O4 (x = 0.0, 0.3, 0.5, 0.7, 1.0), CoFe2O4, BaTiO3 and PbZr0.52Ti0.48O3 powders were synthesized by auto-combustion method. The composites were prepared by mixing the appropriate amounts of individual phases, pressing and conventional sintering. X-ray analysis, for individual phase and composites, indicated the formation of crystallized structure of NiZnFe2O4, BaTiO3 and PbZr0.52Ti0.48O3 without the presence of secondary phases or any impurities. SEM analyses indicated a formation of uniform grain distribution for ferromagnetic and ferroelectric phases and formation of two types of grains, polygonal and rounded, respectively. Magneto-dielectric effect was exhibited in all samples because of the applied stress occurring due to the piezomagnetic effect and the magnetic field induced the variation of the dielectric constant. For all samples the dielectric constant was higher in applied magnetic field. At the low frequency, the dispersion of dielectric losses appeared, while at the higher frequency the value of tan ? become constant (Maxwell-Wagner relaxation). Investigation of J-E relation between leakage and electric field revealed that both nickel zinc ferrite and composites have three different regions of conduction: region with ohmic conduction mechanism, region with the trap-controlled space charge limited current mechanism and region with space charge limited current mechanism.

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14

Lin, Ying, Xiao Liu, Haibo Yang, Fen Wang, Chun Liu, and Xing Wang. "Laminated SrTiO3-Ni0.8Zn0.2Fe2O4 magneto-dielectric composites for high frequency applications." Journal of Alloys and Compounds 688 (December 2016): 571–76. http://dx.doi.org/10.1016/j.jallcom.2016.07.225.

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15

Khan, Bushra, Aditya Kumar, Preeti Yadav, Gulab Singh, Upendra Kumar, Ashok Kumar, and Manoj K. Singh. "Structural, dielectric, magnetic and magneto-dielectric properties of (1 − x)BiFeO3–(x)CaTiO3 composites." Journal of Materials Science: Materials in Electronics 32, no. 13 (June 15, 2021): 18012–27. http://dx.doi.org/10.1007/s10854-021-06344-0.

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16

Chan, Kheng Chuan, Xiao Tian Liew, Ling Bing Kong, Zheng Wen Li, and Guo Qing Lin. "Ni1−xCoxFe1.98O4Ferrite Ceramics with Promising Magneto-Dielectric Properties." Journal of the American Ceramic Society 91, no. 12 (December 2008): 3937–42. http://dx.doi.org/10.1111/j.1551-2916.2008.02777.x.

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17

de Menezes, Fernando Lima, Davino Machado Andrade Neto, Maria do Livramento Linhares Rodrigues, Helder Levi Silva Lima, Denis Valony Martins Paiva, Marcelo Antônio Santos da Silva, Lillian Maria Uchôa Dutra Fechine, et al. "From Magneto-Dielectric Biocomposite Films to Microstrip Antenna Devices." Journal of Composites Science 4, no. 4 (September 24, 2020): 144. http://dx.doi.org/10.3390/jcs4040144.

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Magneto-dielectric composites are interesting advanced materials principally due to their potential applications in electronic fields, such as in microstrip antennas substrates. In this work, we developed superparamagnetic polymer-based films using the biopolymeric matrices chitosan (Ch), cellulose (BC) and collagen (Col). For this proposal, we synthesized superparamagnetic iron oxide nanoparticles (SPIONs) functionalized with polyethyleneimine with a cheap method using sonochemistry. Further, the SPIONs were dispersed into polymer matrices and the composites were evaluated regarding morphology, thermal, dielectric and magnetic properties and their application as microstrip antennas substrates. Microscopically, all tested films presented a uniform dispersion profile, principally due to polyethyleneimine coating. Under an operating frequency (fo) of 4.45 GHz, Ch, BC and Col-based SPION substrates showed moderate dielectric constant (ε′) values in the range of 5.2–8.3, 6.7–8.4 and 5.9–9.1, respectively. Furthermore, the prepared films showed no hysteresis loop, thereby providing evidence of superparamagnetism. The microstrip antennas showed considerable bandwidths (3.37–6.34%) and a return loss lower than −10 dB. Besides, the fo were modulated according to the addition of SPIONs, varying in the range of 4.69–5.55, 4.63–5.18 and 4.93–5.44 GHz, for Ch, BC and Col-based substrates, respectively. Moreover, considering best modulation of ε′ and fo, the Ch-based SPION film showed the most suitable profile as a microstrip antenna substrate.

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18

Kumar, Manish, S. Shankar, G. D. Dwivedi, A. Anshul, O. P. Thakur, and Anup K. Ghosh. "Magneto-dielectric coupling and transport properties of the ferromagnetic-BaTiO3 composites." Applied Physics Letters 106, no. 7 (February 16, 2015): 072903. http://dx.doi.org/10.1063/1.4909553.

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19

Strelniker, Y. M., and D. J. Bergman. "Magneto-optical properties of metal-dielectric composites with a periodic microstructure." European Physical Journal Applied Physics 7, no. 1 (July 1999): 19–24. http://dx.doi.org/10.1051/epjap:1999194.

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20

Yang, Haibo, Luyang Bai, Ying Lin, Fen Wang, and Tong Wang. "Magneto-dielectric laminated Ba(Fe0.5Nb0.5)O3-Bi0.2Y2.8Fe5O12 composites with high dielectric constant and high permeability." Ceramics International 43, no. 3 (February 2017): 2903–9. http://dx.doi.org/10.1016/j.ceramint.2016.09.155.

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21

Kaur, Kulwinder, Mandeep Singh, Jaspal Singh, and Sanjeev Kumar. "The modified magnetodielectric response in KNN-CZFMO based particulate multiferroic composite system." Journal of Advanced Dielectrics 10, no. 05 (October 2020): 2050024. http://dx.doi.org/10.1142/s2010135x20500241.

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Lead-free multiferroic composites of 1[Formula: see text](K[Formula: see text]Na[Formula: see text]NbO[Formula: see text](Co[Formula: see text]Zn[Formula: see text](Fe[Formula: see text]Mn[Formula: see text]O4 (KNN-CZFMO), where [Formula: see text]= 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 and 1.0, have been investigated for their structural, morphological, electrical, magnetic, dielectric and magneto-dielectric properties. Presence of KNN and CZFMO crystal structure in each composite has been confirmed from X-ray diffraction analysis (XRD). Cuboidal-shaped grains of KNN and spherical-shaped grains of CZFMO have been observed by scanning electron microscopy (SEM). The room temperature ferroelectric behavior as confirmed by polarization versus electric field ([Formula: see text]–[Formula: see text] hysteresis loops has been found to be decreasing with increasing CZFMO concentration. Increasing magnetic ordering with the increase in CZFMO concentration in the prepared composites has been observed by magnetization versus magnetic field ([Formula: see text]–[Formula: see text] hysteresis loops. The electrical conductivity of composites has been studied using Jonscher’s universal power law. The room temperature dielectric constant ([Formula: see text] and dielectric loss (tan [Formula: see text] have been observed to decrease with the increase in the frequency of the applied external electric field. The dielectric relaxation behavior has been observed using curve fitting analysis via the Havriliak–Negami relaxation model. Maximum value of the magnetodielectric (MD) effect [Formula: see text]−11% at a frequency of 1 kHz with the applied magnetic field of 1 T has been achieved for 0.9 KNN−0.1 CZFMO ([Formula: see text]= 0.1) composite in the present research work.

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22

YOKOTA, Takeshi, Shotaro MURATA, Takaaki KURIBAYASHI, and Manabu GOMI. "Magnetic and magneto-dielectric properties of magneto-electric field effect capacitor using Cr2O3." Journal of the Ceramic Society of Japan 116, no. 1359 (2008): 1204–7. http://dx.doi.org/10.2109/jcersj2.116.1204.

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23

Zuo, Xuzhong, Maolian Zhang, Enjie He, Peng Zhang, Jie Yang, Xuebin Zhu, and Jianming Dai. "Magnetic, dielectric, and magneto-dielectric properties of Aurivillius Bi7Fe2CrTi3O21 ceramic." Ceramics International 44, no. 5 (April 2018): 5319–26. http://dx.doi.org/10.1016/j.ceramint.2017.12.150.

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24

M. Mane, Sagar, Sanjay G. Chavan, Pravin M. Tirmali, Dadasaheb J. Salunkhe, Chandrakant B. Kolekar, and Shrinivas B. Kulkarni. "Dielectric And Magneto-dielectric Properties Of X [Co0.9Ni0.1Fe2O4] - (1-x) [Ba(Zr0.2Ti0.8)O3] Particulate Multiferroic Composites." Advanced Materials Proceedings 1, no. 1 (August 1, 2016): 53–59. http://dx.doi.org/10.5185/amp.2016/110.

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25

Anithakumari, P., B. P. Mandal, Ehab Abdelhamid, R. Naik, and A. K. Tyagi. "Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe12O19 composites: a step towards miniaturizated electronic devices." RSC Advances 6, no. 19 (2016): 16073–80. http://dx.doi.org/10.1039/c5ra27023e.

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26

Hassan, Nahida, and Basharat Want. "Magneto-dielectric properties of Mn-doped CoFe2O4: Yb-doped PbZrTiO3 multiferroic composites." Journal of Materials Science: Materials in Electronics 32, no. 5 (February 1, 2021): 5579–93. http://dx.doi.org/10.1007/s10854-021-05280-3.

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27

Rocha, H. H. B., F. N. A. Freire, M. R. P. Santos, J. M. Sasaki, T. Cordaro, and A. S. B. Sombra. "Radio-frequency (RF) studies of the magneto-dielectric composites: Cr0.75Fe1.25O3 (CRFO)–Fe0.5Cu0.75Ti0.75O3 (FCTO)." Physica B: Condensed Matter 403, no. 17 (August 2008): 2902–9. http://dx.doi.org/10.1016/j.physb.2008.02.033.

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28

Li, Qifan, Yajie Chen, and Vincent G. Harris. "Clustering effect on permeability spectra of magneto-dielectric composites with conductive magnetic inclusions." Journal of Applied Physics 125, no. 18 (May 14, 2019): 185107. http://dx.doi.org/10.1063/1.5088981.

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29

Yadav, S. P., K. Y. Rajpure, Rajashri Urkude, Y. M. Hunge, and Kamlesh V. Chandekar. "Dielectric and magneto-electric behavior of (x) Co0.8Mn0.2Fe2O4 and (1−x) PbZr0.52Ti0.48O3 composites." Physica B: Condensed Matter 617 (September 2021): 413118. http://dx.doi.org/10.1016/j.physb.2021.413118.

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30

Yadav, Kanhaiya Lal, and Amit Kumar. "Fabrication and Study of Hot Pressed Co_0.6Zn_0.4Fe₂O₄-PVDF PbTi_0.7Zr_0.3O₃ and Co_0.6Zn_0.4Fe₂O₄-PVDF-BaTi_0.7Zr_0.3O₃ Multiferroic Composite Films." Solid State Phenomena 189 (June 2012): 179–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.189.179.

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Multiferroic composite films of (i) Co0.6Zn0.4Fe2O4(CZFO)-PbTi0.7Zr0.3O3(PZT)-poly (vinylidene-fluoride)(PVDF) and (ii) Co0.6Zn0.4Fe2O4-BaTi0.7Zr0.3O3(BZT)-PVDF were prepared by hot press method for magneto-dielectric studies. Different multiferroic composite films were named as CPT-1 (CZFO:PZT; 3:1) CPT-2 (CZFO:PZT; 3:2), CPT-3(CZFO:PZT; 3:3), CBT-1 (CZFO:BZT; 3:1), CBT-2 (CZFO:BZT; 3:2) and CBT-3 (CZFO:BZT 3:3). The entire composites were made with 70% ceramic and 30% wt. PVDF polymer. Line scanning by Scanning electron microscope (SEM) and Atomic force microscopy (AFM) images shows a homogeneous distribution of constituents in the composite film. It is observed that the dielectric permittivity (ε´) follows the MaxwellWagner model. Remnant polarization (Pr) and magnetocapacitance (MC) were found to vary with an applied magnetic field at room temperature. The absolute value of the magnetocapacitance (MC) was found higher for CBT-2 (MC ~ 0.79%) than for CBT-3 (MC ~ 0.57%) but lower than for CPT-3 (MC ~ 1.2%). A linear fit of the MC with M2 yields the magnetoelectric quadratic coupling constant |γ| ~ 4.96 × 10-6 for CBT-1, which is around 150 times lower than for CPT-1 (|γ| ~ 7.92 × 10-4).

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31

Parish, Meera M. "Magnetocapacitance without magnetism." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2009 (February 28, 2014): 20120452. http://dx.doi.org/10.1098/rsta.2012.0452.

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A substantial magnetodielectric effect is often an indication of coupled magnetic and elastic order, such as is found in the multi-ferroics. However, it has recently been shown that magnetism is not necessary to produce either a magnetoresistance or a magnetocapacitance when the material is inhomogeneous. Here, we will investigate the characteristic magnetic-field-dependent dielectric response of such an inhomogeneous system using exact calculations and numerical simulations of conductor–dielectric composites. In particular, we will show that even simple conductor–dielectric layers exhibit a magneto-capacitance, and thus random bulk inhomogeneities are not a requirement for this effect. Indeed, this work essentially provides a natural generalization of the Maxwell–Wagner effect to finite magnetic field. We will also discuss how this phenomenon has already been observed experimentally in some materials.

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32

Bica, Ioan, Eugen Mircea Anitas, and Liviu Chirigiu. "Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers." Nanomaterials 10, no. 10 (October 19, 2020): 2060. http://dx.doi.org/10.3390/nano10102060.

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We present a simple, low-cost, and environmental-friendly method for the fabrication of hybrid magnetorheological composites (hMCs) based on cotton fibers soaked with a mixture of silicone oil (SO), carbonyl iron (CI) microparticles, and iron oxide microfibers (μF). The obtained hMCs, with various ratios (Φ) of SO and μF, are used as dielectric materials for manufacturing electrical devices. The equivalent electrical capacitance and resistance are investigated in the presence of an external magnetic field, with flux density B. Based on the recorded data, we obtain the variation of the relative dielectric constant (ϵr′), and electrical conductivity (σ), with Φ, and B. We show that, by increasing Φ, the distance between CI magnetic dipoles increases, and this leads to significant changes in the behaviour of ϵr′ and σ in a magnetic field. The results are explained by developing a theoretical model that is based on the dipolar approximation. They indicate that the obtained hMCs can be used in the fabrication of magneto-active fibers for fabrication of electric/magnetic field sensors and transducers.

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33

Khalid, Ayesha, Ghulam M. Mustafa, Shahzad Naseem, and Shahid Atiq. "Sm-mediated dielectric characteristics and tunable magneto-electric coefficient of 0.5Bi1-xSmxFe0.95Mn0.05O3-0.5PbTiO3 composites." Ceramics International 45, no. 6 (April 2019): 7690–95. http://dx.doi.org/10.1016/j.ceramint.2019.01.069.

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34

Samad, Rubiya, Mehraj ud Din Rather, Kandasami Asokan, and Basharat Want. "Magneto-dielectric studies on multiferroic composites of Pr doped CoFe2O4 and Yb doped PbZrTiO3." Journal of Alloys and Compounds 744 (May 2018): 453–62. http://dx.doi.org/10.1016/j.jallcom.2018.01.403.

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Yang, Ta-I., Chun-Yu Chuang, Shu-Chian Yang, Leo C. Kempel, and Peter Kofinas. "Core/Shell Iron/Oxide Nanoparticles for Improving the Magneto-Dielectric Properties of Polymer Composites." Advanced Engineering Materials 18, no. 1 (June 15, 2015): 121–26. http://dx.doi.org/10.1002/adem.201500234.

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Vyas, Manoj Kumar, and Amita Chandra. "Magneto‐dielectric and magneto‐conducting fillers based polymer composites: Effect of functionalization, coating and dispersion process on electromagnetic shielding properties." Journal of Applied Polymer Science 138, no. 25 (February 16, 2021): 50602. http://dx.doi.org/10.1002/app.50602.

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Guo, S. J., B. C. Luo, H. Y. Pei, C. L. Chen, and K. X. Jin. "Effect of space charge on dielectric and magneto-dielectric behaviors in Ba0.85Ca0.15Zr0.1Ti0.9O3/La0.67Sr0.33MnO3 heterostructure." Ceramics International 44, no. 12 (August 2018): 14286–90. http://dx.doi.org/10.1016/j.ceramint.2018.05.033.

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Das, Rutuparna, and R. N. P. Choudhary. "Dielectric relaxation and magneto-electric characteristics of lead-free double perovskite: Sm2NiMnO6." Journal of Advanced Ceramics 8, no. 2 (June 2019): 174–85. http://dx.doi.org/10.1007/s40145-018-0303-3.

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Sharma, Sarita, Hakikat Sharma, Shilpa Thakur, J. Shah, R. K. Kotnala, and N. S. Negi. "Structural, magnetic, magneto-dielectric and magneto-electric properties of (1-x) Ba0.85Ca0.15Ti0.90Zr0.10O3 – (x) CoFe2O4 lead-free multiferroic composites sintered at higher temperature." Journal of Magnetism and Magnetic Materials 538 (November 2021): 168243. http://dx.doi.org/10.1016/j.jmmm.2021.168243.

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Wang, Wen Jie, Qing Jie Jiao, Chong Guang Zang, and Xiang Dong Zhu. "Study on the Absorption Properties of Spinel Type Ferrite Composite Coatings in the Low Frequency." Advanced Materials Research 415-417 (December 2011): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.30.

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Abstract:

In the present study magneto-polymer composite coatings are fabricated using nano Zn ferrite, Mn ferrite, Ni ferrite, Zn-Mn ferrite and Zn-Ni ferrite by spraying method. The complex permeabilities, Complex permittivities and microwave absorbing properties within the low frequency of these composites were characterized and investigated. The results showed that the magnetism of the mixed spinel ferrites ( Mn ferrite, Zn-Ni ferrite, Zn-Mn ferrite) are strong but the dielectric properties are weaker, while the magnetism of the normal spinel ferrites (Zn ferrite) is the weakest but provide with a big storage capability of electric energy. The absorbing characteristics of the spinel ferrites are better at 300 kHz-1.5GHz, with minimum absorption of 12.5 dB and the maximum absorption at 480MHz, 1050 MHz and 1400 MHz. The microwave absorbing property of the mixed spinel ferrite Zn-Mn ferrite is best having the RL value being -42.5 dB at 1400GHz.

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Zheng, Zongliang, Xu Wu, Quanyuan Feng, and Vincent G. Harris. "Low loss and tailored high‐frequency performances of BaO‐doped NiZnCo magneto‐dielectric ferrites." Journal of the American Ceramic Society 103, no. 2 (October 16, 2019): 1248–57. http://dx.doi.org/10.1111/jace.16831.

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He, Li, Di Zhou, Haibo Yang, Jing Guo, and Hong Wang. "A Novel Magneto-Dielectric Solid Solution Ceramic 0.25LiFe5 O8 -0.75Li2 ZnTi3 O8 with Relatively High Permeability and Ultra-Low Dielectric Loss." Journal of the American Ceramic Society 95, no. 12 (November 20, 2012): 3732–34. http://dx.doi.org/10.1111/jace.12075.

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Masood, Khalid, Tatiana Zaikova, Kenyon Plummer, Thomas Allen, James Stasiak, Paul Harmon, James Hutchison, Albrecht Jander, and Pallavi Dhagat. "Design and Digital Fabrication of Magneto-dielectric Composites for Additive Manufacturing of Gradient Index RF Lenses." NIP & Digital Fabrication Conference 2019, no. 1 (September 29, 2019): 94–99. http://dx.doi.org/10.2352/issn.2169-4451.2019.35.94.

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Gaikwad, Anil S., Sagar E. Shirsath, Santosh R. Wadgane, R. H. Kadam, Jyoti Shah, R. K. Kotnala, and A. B. Kadam. "Magneto-electric coupling and improved dielectric constant of BaTiO3 and Fe-rich (Co0.7Fe2.3O4) ferrite nano-composites." Journal of Magnetism and Magnetic Materials 465 (November 2018): 508–14. http://dx.doi.org/10.1016/j.jmmm.2018.06.036.

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Yang, T. I., R. N. C. Brown, L. C. Kempel, and P. Kofinas. "Controlled synthesis of core–shell iron–silica nanoparticles and their magneto-dielectric properties in polymer composites." Nanotechnology 22, no. 10 (February 2, 2011): 105601. http://dx.doi.org/10.1088/0957-4484/22/10/105601.

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He, Li, Di Zhou, Haibo Yang, Yujuan Niu, Feng Xiang, and Hong Wang. "Low-Temperature Sintering Li2 MoO4 /Ni0.5 Zn0.5 Fe2 O4 Magneto-Dielectric Composites for High-Frequency Application." Journal of the American Ceramic Society 97, no. 8 (June 18, 2014): 2552–56. http://dx.doi.org/10.1111/jace.12981.

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Ramesh, T., V. Rajendar, and S. R. Murthy. "CoFe2O4–BaTiO3 multiferroic composites: role of ferrite and ferroelectric phases on the structural, magneto dielectric properties." Journal of Materials Science: Materials in Electronics 28, no. 16 (April 24, 2017): 11779–88. http://dx.doi.org/10.1007/s10854-017-6983-6.

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Sharma, Sarita, Shilpa Thakur, J. Shah, R. K. Kotnala, and N. S. Negi. "Influence of phase dominance on structural, magneto-dielectric, magnetic-electric properties of (Ba0.85Ca0.15Zr0.1Ti0.9)O3-CoFe2O3 composites." Journal of Materials Science: Materials in Electronics 32, no. 5 (February 12, 2021): 6570–85. http://dx.doi.org/10.1007/s10854-021-05373-z.

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Chang, Panpan, Li He, and Hong Wang. "Low Loss Magneto-Dielectric Composite Ceramics Ba3 Co2 Fe24 O41 /SrTiO3 for High-Frequency Applications." Journal of the American Ceramic Society 98, no. 4 (December 24, 2014): 1137–41. http://dx.doi.org/10.1111/jace.13404.

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Kong, L. B., Z. W. Li, G. Q. Lin, and Y. B. Gan. "Magneto-Dielectric Properties of Mg?Cu?Co Ferrite Ceramics: I. Densification Behavior and Microstructure Development." Journal of the American Ceramic Society 90, no. 10 (October 2007): 3106–12. http://dx.doi.org/10.1111/j.1551-2916.2007.01869.x.

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