Academic literature on the topic 'Antidot lattice'

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Journal articles on the topic "Antidot lattice"

1

De, Anulekha, Sucheta Mondal, Sourav Sahoo, et al. "Field-controlled ultrafast magnetization dynamics in two-dimensional nanoscale ferromagnetic antidot arrays." Beilstein Journal of Nanotechnology 9 (April 9, 2018): 1123–34. http://dx.doi.org/10.3762/bjnano.9.104.

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Ferromagnetic antidot arrays have emerged as a system of tremendous interest due to their interesting spin configuration and dynamics as well as their potential applications in magnetic storage, memory, logic, communications and sensing devices. Here, we report experimental and numerical investigation of ultrafast magnetization dynamics in a new type of antidot lattice in the form of triangular-shaped Ni80Fe20 antidots arranged in a hexagonal array. Time-resolved magneto-optical Kerr effect and micromagnetic simulations have been exploited to study the magnetization precession and spin-wave modes of the antidot lattice with varying lattice constant and in-plane orientation of the bias-magnetic field. A remarkable variation in the spin-wave modes with the orientation of in-plane bias magnetic field is found to be associated with the conversion of extended spin-wave modes to quantized ones and vice versa. The lattice constant also influences this variation in spin-wave spectra and spin-wave mode profiles. These observations are important for potential applications of the antidot lattices with triangular holes in future magnonic and spintronic devices.
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2

Hao, Qing, Dongchao Xu, Ximena Ruden, Brian LeRoy, and Xu Du. "Thermoelectric Performance Study of Graphene Antidot Lattices on Different Substrates." MRS Advances 2, no. 58-59 (2017): 3645–50. http://dx.doi.org/10.1557/adv.2017.509.

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ABSTRACT Pristine graphene has low thermoelectric performance due to its ultra-high thermal conductivity and a low Seebeck coefficient, the latter of which results from the zero-band gap of graphene. To improve the thermoelectric performance of graphene-based materials, various methods have been proposed to open a band gap in graphene. Graphene antidot lattices is one of the most effective methods to reach this goal by patterning periodic nano- or sub-1-nm pores (antidots) across graphene. In high-porosity graphene antidot lattices, charge carriers mainly flow through the narrow necks between pores, forming a comparable case as graphene nanoribbons. This will open a geometry-dependent band gap and dramatically increase the Seebeck coefficient. The antidots also strongly scatter phonons, leading to a dramatically reduced lattice thermal conductivity to further enhance the thermoelectric performance. In computations, the thermoelectric figure of merit of a graphene antidot lattices was predicted to be around 1.0 at 300 K but experimental validation is still required. The electrical conductivity and Seebeck coefficient of graphene antidot lattices on various substrates including SiO2, SiC and hexagonal boron nitride were measured. The antidots were drilled with a focused ion beam or reactive ion etching.
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3

Mackenzie, David M. A., Alberto Cagliani, Lene Gammelgaard, Bjarke S. Jessen, Dirch H. Petersen, and Peter Bøggild. "Graphene antidot lattice transport measurements." International Journal of Nanotechnology 14, no. 1/2/3/4/5/6 (2017): 226. http://dx.doi.org/10.1504/ijnt.2017.082469.

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4

Tank, R. W., and R. B. Stinchcombe. "Classical magnetoresistance of an antidot lattice." Journal of Physics: Condensed Matter 5, no. 31 (1993): 5623–36. http://dx.doi.org/10.1088/0953-8984/5/31/024.

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5

Moshchalkov, V. V., M. Baert, V. V. Metlushko, et al. "Pinning by an antidot lattice: The problem of the optimum antidot size." Physical Review B 57, no. 6 (1998): 3615–22. http://dx.doi.org/10.1103/physrevb.57.3615.

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6

Wang, C. C., A. O. Adeyeye, and N. Singh. "Magnetic antidot nanostructures: effect of lattice geometry." Nanotechnology 17, no. 6 (2006): 1629–36. http://dx.doi.org/10.1088/0957-4484/17/6/015.

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7

Zozulenko, I. V., Frank A. Maao/, and E. H. Hauge. "Quantum magnetotransport in a mesoscopic antidot lattice." Physical Review B 51, no. 11 (1995): 7058–63. http://dx.doi.org/10.1103/physrevb.51.7058.

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8

Palma, Juan L., Alejandro Pereira, Raquel Álvaro, José Miguel García-Martín, and Juan Escrig. "Magnetic properties of Fe3O4 antidot arrays synthesized by AFIR: atomic layer deposition, focused ion beam and thermal reduction." Beilstein Journal of Nanotechnology 9 (June 11, 2018): 1728–34. http://dx.doi.org/10.3762/bjnano.9.164.

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Magnetic films of magnetite (Fe3O4) with controlled defects, so-called antidot arrays, were synthesized by a new technique called AFIR. AFIR consists of the deposition of a thin film by atomic layer deposition, the generation of square and hexagonal arrays of holes using focused ion beam milling, and the subsequent thermal reduction of the antidot arrays. Magnetic characterizations were carried out by magneto-optic Kerr effect measurements, showing the enhancement of the coercivity for the antidot arrays. AFIR opens a new route to manufacture ordered antidot arrays of magnetic oxides with variable lattice parameters.
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9

Berdiyorov, G. R., M. V. Milošević, and François M. Peeters. "Non commensurate vortex lattices in a composite antidot lattice or dc current." Physica C: Superconductivity and its Applications 468, no. 7-10 (2008): 809–12. http://dx.doi.org/10.1016/j.physc.2007.11.055.

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10

Ueki, M., A. Endo, S. Katsumoto, and Y. Iye. "Quantum oscillation and decoherence in triangular antidot lattice." Physica E: Low-dimensional Systems and Nanostructures 22, no. 1-3 (2004): 365–68. http://dx.doi.org/10.1016/j.physe.2003.12.022.

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