Giant microwave magneto-impedance in a single crystal of La0.7Sr0.3MnO3: The effect of ferromagnetic antiresonance

S. E. Lofland; S. M. Bhagat; S. D. Tyagi; Y. M. Mukovskii; S. G. Karabashev; A. M. Balbashov

doi:10.1063/1.363275

Giant microwave magneto-impedance in a single crystal of La_0.7Sr_0.3MnO₃: The effect of ferromagnetic antiresonance

S. E. Lofland, S. M. Bhagat, S. D. Tyagi, Y. M. Mukovskii, S. G. Karabashev, A. M. Balbashov

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48 Scopus citations

Abstract

We show that at about 340 K a large (≅50%) change in the microwave absorption of a single crystal of La_0.7Sr_0.3MnO₃ is caused by the application of a field of just a few tens of mT. This large magneto-impedance occurs at 10 GHz but is absent at 36 GHz, and we demonstrate that these results follow from the frequency and field dependence of the dynamic permeability of a ferromagnetic conductor.

Original language	English (US)
Pages (from-to)	3592-3594
Number of pages	3
Journal	Journal of Applied Physics
Volume	80
Issue number	6
DOIs	https://doi.org/10.1063/1.363275
State	Published - Sep 15 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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abstract = "We show that at about 340 K a large (≅50%) change in the microwave absorption of a single crystal of La0.7Sr0.3MnO3 is caused by the application of a field of just a few tens of mT. This large magneto-impedance occurs at 10 GHz but is absent at 36 GHz, and we demonstrate that these results follow from the frequency and field dependence of the dynamic permeability of a ferromagnetic conductor.",

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T1 - Giant microwave magneto-impedance in a single crystal of La0.7Sr0.3MnO3

T2 - The effect of ferromagnetic antiresonance

AU - Lofland, S. E.

AU - Bhagat, S. M.

AU - Tyagi, S. D.

AU - Mukovskii, Y. M.

AU - Karabashev, S. G.

AU - Balbashov, A. M.

PY - 1996/9/15

Y1 - 1996/9/15

N2 - We show that at about 340 K a large (≅50%) change in the microwave absorption of a single crystal of La0.7Sr0.3MnO3 is caused by the application of a field of just a few tens of mT. This large magneto-impedance occurs at 10 GHz but is absent at 36 GHz, and we demonstrate that these results follow from the frequency and field dependence of the dynamic permeability of a ferromagnetic conductor.

AB - We show that at about 340 K a large (≅50%) change in the microwave absorption of a single crystal of La0.7Sr0.3MnO3 is caused by the application of a field of just a few tens of mT. This large magneto-impedance occurs at 10 GHz but is absent at 36 GHz, and we demonstrate that these results follow from the frequency and field dependence of the dynamic permeability of a ferromagnetic conductor.

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IS - 6

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Giant microwave magneto-impedance in a single crystal of La_0.7Sr_0.3MnO₃: The effect of ferromagnetic antiresonance

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