Relevant bibliographies by topics / Infrared magneto-spectroscopy

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Infrared magneto-spectroscopy'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Infrared magneto-spectroscopy"

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SADOWSKI, M. L., G. MARTINEZ, M. POTEMSKI, C. BERGER, and W. A. DE HEER. "MAGNETO-SPECTROSCOPY OF EPITAXIAL GRAPHENE." International Journal of Modern Physics B 21, no. 08n09 (April 10, 2007): 1145–54. http://dx.doi.org/10.1142/s0217979207042586.

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We present a far infrared investigation of the optical transitions in epitaxial graphene subjected to a perpendicular magnetic field. Cyclotron-resonance-like transitions between adjacent electron Landau levels are observed, as well as interband transitions. The results are discussed in terms of existing theoretical models of Dirac fermions in graphene, and the relevant optical selection rules.
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Yan, Hugen, Zhiqiang Li, Xuesong Li, Wenjuan Zhu, Phaedon Avouris, and Fengnian Xia. "Infrared Spectroscopy of Tunable Dirac Terahertz Magneto-Plasmons in Graphene." Nano Letters 12, no. 7 (June 13, 2012): 3766–71. http://dx.doi.org/10.1021/nl3016335.

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Krizman, G., F. Carosella, J. Bermejo-Ortiz, A. Philippe, J. B. Rodriguez, J. P. Perez, P. Christol, L. A. de Vaulchier, and Y. Guldner. "Magneto-spectroscopy investigation of InAs/InAsSb superlattices for midwave infrared detection." Journal of Applied Physics 130, no. 5 (August 7, 2021): 055704. http://dx.doi.org/10.1063/5.0054320.

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Jensen, M. R. F., S. A. Feiven, T. J. Parker, and R. E. Camley. "Far-infrared magneto-spectroscopy of bulk and surface magnetic excitations in FeF2." Journal of Magnetism and Magnetic Materials 177-181 (January 1998): 835–36. http://dx.doi.org/10.1016/s0304-8853(97)00759-2.

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Orlita, M., C. Faugeras, A. L. Barra, G. Martinez, M. Potemski, D. M. Basko, M. S. Zholudev, et al. "Infrared magneto-spectroscopy of two-dimensional and three-dimensional massless fermions: A comparison." Journal of Applied Physics 117, no. 11 (March 21, 2015): 112803. http://dx.doi.org/10.1063/1.4913828.

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Nisida, Y., and K. Muro. "Far-Infrared Magneto-Spectroscopy of Shallow Impurities and Excitons in Germanium by Using Lasers." Progress of Theoretical Physics Supplement 57 (May 14, 2013): 77–86. http://dx.doi.org/10.1143/ptp.57.77.

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Armelles, Gaspar, Luca Bergamini, Alfonso Cebollada, Nerea Zabala, and Javier Aizpurua. "A novel vibrational spectroscopy using spintronic–plasmonic antennas: Magneto-refractive surface-enhanced infrared absorption." Journal of Applied Physics 129, no. 7 (February 21, 2021): 073103. http://dx.doi.org/10.1063/5.0036385.

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Brown, D. E., T. Dumelow, M. R. F. Jensen, and T. J. Parker. "A high-resolution Fourier transform spectrometer for far infrared magneto-optic spectroscopy of magnetic materials." Infrared Physics & Technology 40, no. 3 (June 1999): 219–30. http://dx.doi.org/10.1016/s1350-4495(99)00013-4.

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Kimura, Shin-ichi, Hideaki Kitazawa, Giyu Kido, and Takashi Suzuki. "Electronic Structure in the Magnetically Ordered States of CeSb Studied by Infrared Magneto-Optical Spectroscopy." Journal of the Physical Society of Japan 69, no. 3 (March 15, 2000): 647–50. http://dx.doi.org/10.1143/jpsj.69.647.

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Jiang, Yuxuan, Zhengguang Lu, Jamey Gigliotti, Avinash Rustagi, Li Chen, Claire Berger, Walt de Heer, Christopher J. Stanton, Dmitry Smirnov, and Zhigang Jiang. "Valley and Zeeman Splittings in Multilayer Epitaxial Graphene Revealed by Circular Polarization Resolved Magneto-infrared Spectroscopy." Nano Letters 19, no. 10 (August 30, 2019): 7043–49. http://dx.doi.org/10.1021/acs.nanolett.9b02505.

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Dissertations / Theses on the topic "Infrared magneto-spectroscopy"

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Yu, Wenlong. "Infrared magneto-spectroscopy of graphite and graphene nanoribbons." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54244.

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The graphitic systems have attracted intensive attention recently due to the discovery of graphene, a single layer of graphite. The low-energy band structure of graphene exhibits an unusual linear dispersion relation which hosts massless Dirac fermions and leads to intriguing electronic and optical properties. In particular, due to the high mobility and tunability, graphene and graphitic materials have been recognized as promising candidates for future nanoelectronics and optoelectronics. Electron-phonon coupling (EPC) plays a significant role in electronic and optoelectronic devices. Therefore, it is crucial to understand EPC in graphitic materials and then manipulate it to achieve better device performance. In the first part of this thesis, we explore EPC between Dirac-like fermions and infrared active phonons in graphite via infrared magneto-spectroscopy. We demonstrate that the EPC can be tuned by varying the magnetic field. The second part of this thesis deals with magnetoplasmons in quasineutral graphene nanoribbons. Multilayer epitaxial graphene grown on the carbon terminated silicon carbide surface behaves like single layer graphene. Plasmons are excited in the nanoribbons of undoped multilayer epitaxial graphene. In a magnetic field, the cyclotron resonance can couple with the plasmon resonance forming the so-called upperhybrid mode. This mode exhibits a distinct dispersion relation, radically different from that expected for conventional two dimensional systems.
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Brown, D. E. "Far infrared magneto-spectroscopy of FeF2 and CdxHg1-xTe." Thesis, University of Essex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294671.

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Allan, Graham Robert. "Nonlinear far infrared magneto optical spectroscopy of III-V semiconductors." Thesis, Heriot-Watt University, 1985. http://hdl.handle.net/10399/1659.

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Hakl, Michael. "Infrared magneto-spectroscopy of relativistic-like electrons in three-dimensional solids." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY085/document.

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L'utilisation de l'équation de Dirac/Weyl conduit à une simplification conceptuelle dans une description de la structure de la bande dans les solides à faible échelle d'énergie. En particulier, les excitations d'électrons-trous peuvent être considérées comme analogues au cas relativiste tel que conductivité optique linéaire, le suppression de backscattering ou la manifestation des arcs de Fermi et la chiralité des particules. En outre, la phase semi-métallique est également un élément crucial pour la classification des matériaux. La taille de le gap est affectée qualitativement par le type de dispersion d'énergie par un croisement continu des bandes linéaires à paraboliques. Cela peut être compris comme une limite classique ou ultra-relativiste du mouvement d'une particule massive.La spectroscopie infrarouge de la transformation de Fourier est une technique unique pour étudier les excitations optiques dans une large gamme d'énergies et représente en combinaison avec le champ magnétique élevé un outil puissant pour sondage de la structure électronique et surmonte le principal obstacle des systèmes sans gap qui est un dopage fort en raison de désordre structurel.La première partie du travail est consacrée à l'arséniure de cadmium, où nous élaborons une approche de distinction qualitative entre les systèmes Dirac et Kane qui ont été utilisés pour prouver sur la base de la réponse magnéto-optique observée la réalisation du modèle Kane presque sans gap avec une similitude frappante avec HgCdTe, en contradiction avec l'existence de cônes purement Dirac. La magnéto-réflectivité dans un champ magnétique à champ élevé la résonance cyclotron caractéristiques par un radical-B dépendance avec un comportement particulier dans la limite quantique. En revanche, la magnéto-transmission montrait des transitions de niveau Landau qui doit être interprétées que comme un type plat-à-cône afin de préserver une cohérence totale du modèle. Les cônes de Dirac prédits par la théorie sont susceptibles de coexister dans le modèle de Kane sous la forme d'une sous-structure décrite par le modèle de Bodnar qui se rapproche de la structure cristalline complexe par une simple cellule antifluorite qui permet d'utiliser la théorie du k.p classique.Dans la deuxième partie, nous nous concentrons sur le bismuth comme isolant topologique 3D archétype. Nous étudions une condition particulière obéie pour le BHZ-hamiltonien qui apporte des propriétés intriguantes comme une relation inhabituelle de spin gap et la résonance du cyclotron, l'épinglage spécifique entre les fancharts des sous-groupes Landau ou les g-facteurs compensés dans les bandes de conduction et de valence. Les mesures de photoluminescence ont montré une émission directgap, ce qui donne un nouvel aperçu de la structure largement acceptée à partir des données ARPES, où la “chameau structure” de la bande de valence doit être expliquée dans le confinement de surface et le point de Dirac de l'état de surface doit être repositionné par rapport aux bandes en bulk. La réponse magnéto-optique peut être pleinement expliquée dans une image classique du paramagnétisme de Pauli comme un simple effet d'occupation. Un tel comportement se manifeste dans la transmission en tant que fractionnement progressif du bord d'absorption interbande avec une saturation successive due à la polarisation spin partielle ou totale des électrons. Le dichroïsme relatif entraîne également une forte rotation de Faraday linéaire décrite par un modèle simple de la constante Verdet qui ne dépend pas sur le niveau de Fermi
The use of the Dirac/Weyl equation leads to a conceptual simplification in a description of the band structure in solids at low energy scales. In particular, electron-hole excitations can be regarded as an analogue to the relativistic case with several expected phenomena to be observed in the condensed systems such as a suppressed back-scattering, linear optical conductivity or the manifestation of the Fermi arcs and particle's chirality. Moreover, the semimetallic phase also symbolizes a boundary between the trivial and topological insulators and thus play a crucial role for the material classification. The size of the gap qualitatively affects the type of the energy dispersion by a continuous crossover from the linear to parabolic bands. This fact can be easily understood as a classical or ultra-relativistic limit of the motion of a free massive particle.Infrared Fourier transform spectroscopy is a unique technique for studying optical excitations in a wide range of energies and it represents in combination with the high magnetic field a powerful tool for probing electronic structure and overcomes the main obstacle of the gapless systems that is a strong doping due to the structural disorder.The first part of the work is devoted to cadmium arsenide, where we elaborate an approach to qualitatively distinguish between the Dirac and Kane systems that was used to prove on the basis of the observed magneto-optical response the realization of the nearly gapless Kane model with a striking similarity to HgCdTe, contradicting the existence of purely Dirac cones. The magneto-reflectivity revealed a strong splitting of the plasma edge that turns into the cyclotron resonance characteristic by a squareroot-of-B dependence in the high magnetic field with a particular behaviour in the quantum limit independent on the initial Fermi level. In contrast, the magneto-transmission revealed interband Landau level transitions that could be only interpreted as a flat-to-cone type in order to preserve a full consistency of the model. The Dirac cones predicted by theory are feasible to coexist within the Kane model in the form of a substructure described by the Bodnar model that approximates the complex crystal structure by a simple antifluorite cell, which allows to use the conventional k.p-theory.In the second part, we focus on bismuth selenide entitled as an archetypal 3D topological insulator. We study a peculiar condition fulfilled for the BHZ-hamiltonian that brings intriguing properties such as an unusual relation of the spin gap and cyclotron resonance, the specific pinning between fancharts of Landau subsets or the compensated g-factors of the conduction and valence bands. The photoluminescence measurements showed a direct-gap emission, that gives a new insight to the widely accepted structure from ARPES data, where the declared camel-back structure of the valence band needs to be explained within the surface confinement and the Dirac point of the surface state should be repositioned with respect to the bulk bands. The magneto-optical response can be fully explained in a classical picture of the Pauli paramagnetism as a purely occupational effect. Such behaviour is evinced in the transmission as a gradual splitting of the interband absorption edge with a successive saturation due to the partial or total spin polarization of electrons. The related dichroism drives also a strong linear Faraday rotation described by a simple model of the Verdet constant that depends only on the Fermi level
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Jensen, Morten R. F. "Far infrared magneto-spectroscopy of bulk and surface magnetic excitations in FeF←2." Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361040.

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Midlíková, Jana. "Návrh propojení far-infrared spektrometru k supravodivému magnetu a magneto-optické měření ve far-infrared oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382287.

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Práca sa zaoberá vývojom ďalekej infračervenej spektroskopie v silnom magnetickom poli. Kombinácia ďalekej infračervenej spektroskopie a silného magnetického poľa je veľmi dôležitým nástrojom pri charakterizácii materiálov, ako sú jedno-molekulové magnety. Predstavuje tiež ideálnu experimentálnu techniku, ktorá dokáže skúmať a objasniť vlastnosti nových 2D materiálov. Ďaleká infračervená spektroskopia v magnetickom poli taktiež umožňuje študovať elektrónovú paramagnetickú rezonanciu (EPR) jedno-molekulových magnetov s veľmi veľkým delením pri nulovom poli, hlavne na báze komplexov prechodných kovov alebo lantanoidov, v ktorých bežne používané EPR systémy neposkytujú experimentálny prístup k magnetickým rezonančným prechodom. V práci sú podrobne popísané dve zostavy ďaleko infračervených spektrometrov pripojené k supravodivým magnetom. Prvá opísaná zostava, ktoré sa nachádza na univerzite v Stuttgarte, je už zmontovaná a jej výkon je diskutovaný. Magneto-optické merania jedno-molekulových magnetov vykonané na tejto zostave sú predstavené. Druhá magneto-optická zostava čerpá zo skúseností získaných pri prvej zostave a je určená pre CEITEC.
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Shahedipour, Fatemeh. "Diamond synthesis on steel substrates using magneto-active plasma chemical vapor deposition with novel in situ FTIR spectroscopy characterization /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9901278.

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Šikula, Marek. "Infračervená magneto-spektroskopie polovodičů Rashbova typu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231998.

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Optická odezva BiTeX (X = I, Cl, Br) polovodičových materiálů s obřím spinovým štěpením Rashbova typu je studována za nízkých teplot do vysokých magnetických polí, kde je směr magnetické indukce kolmý na povrch vzorku (Faradayova konfigurace). Na rozdíl od reflexního uspořádání nám transmisní uspořádání umožňuje přímé pozorování přechodů mezi Landauovými hladinami v blízkosti křižiště vodivostních pásů - Diracův bod. Optická odezva BiTeX sloučenin je srovnána s teoretickým modelem spočteným v rámci Kubo-Greenwoodova formalismu z Rashbova hamiltonianu.
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Mohelský, Ivan. "Infračervená magneto-spektroskopie topologického izolátoru Bi2Te3." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417169.

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Tato práce se zabývá charakterizací topologického izolátoru Bi2Te3, materiálu s nevodivými stavy v objemu, ale jedním vodivým pásem na povrchu. Tento materiál je zkoumán již přes 60 let, ale i přes to není jeho objemová pásová struktura úplně objasněna, obzvláště charakter zakázaného pásu je stále předmětem diskuze. V této práci jsou prezentovány výsledky infračervené spektroskopie na Landauových hladinách v magnetickém poli až do 34 T, doplněné elipsometrickým měřením mimo magnetické pole. Výsledky těchto měření by měli pomoci vyjasnit některé vlastnosti zakázaného pásu. Pozorovaná optická odezva odpovídá polovodiči s přímým zakázaným pásem, ve kterém se nosiče náboje chovají jako Diracovské hmotné fermiony. Šířka zakázaného pásu za nízkých teplot byla určena jako Eg = (175±5) meV a samotný zakázaný pás se nachází mimo trigonální osu, tím pádem se v první Brillouinově zoně vyskytuje 6 krát nebo 12 krát.
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Chang, Chin-chi. "Magneto-optical studies of semiconductor heterostructures." Thesis, University of Oxford, 1998. http://ora.ox.ac.uk/objects/uuid:f25fb6fb-18d9-4750-8ca2-191201c27fba.

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This thesis is primarily concerned with far infrared effects in semiconductor heterostructures. These properties have been studied as a function of magnetic fields at low temperature using various optical detection techniques. Cyclotron resonance has been studied in CdTe quantum wells. The results are compared with calculations using the memory function approach, which demonstrate that there is a large reduction in the resonant coupling due to level occupancy effects. Semimetallic GaSb/InAs superlattices have been studied by cyclotron resonance experiments. In samples with low InAs/GaSb ratios (~1), a pinning between the heavy hole subbands is predicted by theory which results in a suppression of heavy hole resonance at high magnetic fields. Photoluminescence measurements on a series of ultra-high mobility GaAs/AlGaAs heterojunctions have been performed. It has been found that the modulation caused by far infrared beam is entirely dependent on the filling factors, which is understood as the Landau level coupling effects between the subbands of 2DES. A GaAs/AlGaAs coupled quantum well photodiode has been studied by photoluminescence and photocurrent under the influence of far infrared beam. An enhancement of the photocurrent in the device is observed when the infrared photons are resonant with the intersubband transition between the anti-crossing electronic subbands of the coupled quantum wells, which makes the structure a potential tuneable far infrared detector. Most of the experimental works have been modelled with a k.p theory using momentum matrix approach. The self-consistency incorporated in this model proves to be useful while dealing with semimetallic or nonintrinsic systems. These calculations offer invaluable clues to the semiconductor heterostructures investigated.
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Conference papers on the topic "Infrared magneto-spectroscopy"

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Drachenko, O., S. Winnerl, H. Schneider, M. Helm, and J. Leotin. "Infrared magneto-spectroscopy using quantum cascade lasers." In 2010 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010). IEEE, 2010. http://dx.doi.org/10.1109/icimw.2010.5612512.

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Portugall, O. "High field magneto-spectroscopy on Hg(Fe)Se." In 15th International Conference on Infrared and Millimeter Waves. SPIE, 1990. http://dx.doi.org/10.1117/12.2301524.

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Huang, Yue, Jie Yuan, Kui Jin, Xinwei Li, Kimberly S. Reichel, Junichiro Kono, Lixin Cao, and Daniel M. Mittleman. "Magneto-THz spectroscopy in spinel superconductor LiTi2O4 thin films." In 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2017. http://dx.doi.org/10.1109/irmmw-thz.2017.8067011.

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van der Sluijs, A. J. "FT-FIR magneto-spectroscopy on resonant bound polarons in n-GaAs." In 18th International Conference on Infrared and Millimeter Waves. SPIE, 2017. http://dx.doi.org/10.1117/12.2298691.

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Stier, A. V., D. George, A. G. Markelz, and J. Cerne. "Magneto optical polarization measurements using THz polarization modulation spectroscopy." In 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2011). IEEE, 2011. http://dx.doi.org/10.1109/irmmw-thz.2011.6104957.

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Yahyapour, Milad, Nico Vieweg, Thomas Puppe, Anselm Deninger, Oleksiy Drachenko, and Jean Leotin. "Terahertz time-domain magneto-spectroscopy using electronically controlled optical sampling." In 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). IEEE, 2016. http://dx.doi.org/10.1109/irmmw-thz.2016.7758748.

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Kempf, P., M. von Ortenberg, E. Bangert, G. Landwehr, G. Weimann, and W. Schlapp. "Submillimeter-magneto spectroscopy on p-type gaas/ga(al)as hetero structures." In 1987 Twelth International Conference on Infrared and Millimeter Waves. IEEE, 1987. http://dx.doi.org/10.1109/irmm.1987.9127015.

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Nagai, Masaya, Atsushi Nakane, Hiroyasu Suzukawa, Tomohide Morimoto, and Masaaki Ashida. "Terahertz time-domain magneto-optic spectroscopy without the polarization-resolution technique." In 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2019. http://dx.doi.org/10.1109/irmmw-thz.2019.8873808.

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Miura, N. "Infrared and far-infrared magneto-spectroscopy of semiconductors in high magnetic fields in the megagauss range." In 17th International Conference on Infrared and Millimeter Waves. SPIE, 2017. http://dx.doi.org/10.1117/12.2298227.

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Morimoto, T., G. Yamashita, M. Nagai, and M. Ashida. "A smart method for magneto-optical spectroscopy with a quarter-wave plate." In 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). IEEE, 2016. http://dx.doi.org/10.1109/irmmw-thz.2016.7758373.

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