DOI: 10.1063/1.367717. Infrared studies of magnetic surface modes on antiferromagnets (invited)

Infrared studies of magnetic surface modes on antiferromagnets (invited)

10.1063/1.367717

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

In contrast to ferromagnets, where low frequency surface excitations typically have frequencies in the 10 GHz range, surface excitations in antiferromagnets are often in the several hundred GHz to few THz range. Theoretical predictions for surface spin waves on antiferromagnets indicate that they should be highly nonreciprocal, i.e., the properties of a wave with wave vector +k would be very different from those with a reversed wave vector of −k. Surface spin waves on antiferromagnets have recently been measured using a high resolution Fourier transform infrared spectrometer. The results show evidence of both true surface modes and surface resonances. The nonreciprocal features of the surface modes are seen in a dramatic nonreciprocal reflection. For example, the reflectivity can be 80% for one orientation, but when the incident and reflected waves are reversed the reflectivity drops to near zero. While the initial measurements were done on a bulk antiferromagnet, we also present calculations showing the results for thin films.

Bibliography

Camley, R. E., Jensen, M. R. F., Feiven, S. A., & Parker, T. J. (1998). Infrared studies of magnetic surface modes on antiferromagnets (invited). Journal of Applied Physics, 83(11), 6280â6283.

Authors 4

R. E. Camley (first)
M. R. F. Jensen (additional)
S. A. Feiven (additional)
T. J. Parker (additional)

References 17 Referenced 11

10.1103/PhysRevLett.76.4624 / Phys. Rev. Lett. (1996)
10.1063/1.364818 / J. Appl. Phys. (1997)
10.1016/0167-5729(87)90006-9 / Surf. Sci. Rep. (1987)
10.1088/0034-4885/37/7/001 / Rep. Prog. Phys. (1974)
10.1103/PhysRevB.26.1280 / Phys. Rev. B (1982)
10.1103/PhysRevLett.56.2752 / Phys. Rev. Lett. (1986)
10.1016/0167-5729(96)00003-9 / Surf. Sci. Rep. (1996)
10.1103/PhysRevB.10.132 / Phys. Rev. B (1974)
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10.1103/PhysRevB.50.6808 / Phys. Rev. B (1994)
10.1063/1.345870 / J. Appl. Phys. (1990)
{'key': '2024020220343509300_r16'}
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Dates

Type	When
Created	23 years ago (July 26, 2002, 9:53 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 4:12 p.m.)
Indexed	1 year, 6 months ago (Feb. 2, 2024, 4:42 p.m.)
Issued	27 years, 2 months ago (June 1, 1998)
Published	27 years, 2 months ago (June 1, 1998)
Published Print	27 years, 2 months ago (June 1, 1998)

Funders 0

None

BibTeX

@article{Camley_1998, title={Infrared studies of magnetic surface modes on antiferromagnets (invited)}, volume={83}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.367717}, DOI={10.1063/1.367717}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Camley, R. E. and Jensen, M. R. F. and Feiven, S. A. and Parker, T. J.}, year={1998}, month=jun, pages={6280–6283} }

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