Effect of ferromagnetism on AB oscillations in a normal-metal ring

Koji Sekiguchi; Akinobu Yamaguchi; Hideki Miyajima; Atsufumi Hirohata

doi:10.1103/PhysRevB.77.140401

Effect of ferromagnetism on AB oscillations in a normal-metal ring

Koji Sekiguchi, Akinobu Yamaguchi, Hideki Miyajima, Atsufumi Hirohata

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Quantum phase modulation is achieved in a metallic nanoring with a FeNi/Cu/FeNi (ferromagnet/normal-metal/ferromagnet) layer. Both frequency and amplitude of Aharonov-Bohm oscillation are found to be modified with respect to the magnetization configurations, indicating that the phase modulation originates from the spin-orbit scattering induced by the magnetization of the ferromagnets. Such phase modulation is "crossover" phenomena between mesoscopic magnetism and microscopic quantum interference effects, which provides fundamental knowledge upon quantum spin transport.

Original language	English
Article number	140401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.77.140401
Publication status	Published - 2008 Apr 2

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.77.140401

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AU - Sekiguchi, Koji

AU - Yamaguchi, Akinobu

AU - Miyajima, Hideki

AU - Hirohata, Atsufumi

PY - 2008/4/2

Y1 - 2008/4/2

N2 - Quantum phase modulation is achieved in a metallic nanoring with a FeNi/Cu/FeNi (ferromagnet/normal-metal/ferromagnet) layer. Both frequency and amplitude of Aharonov-Bohm oscillation are found to be modified with respect to the magnetization configurations, indicating that the phase modulation originates from the spin-orbit scattering induced by the magnetization of the ferromagnets. Such phase modulation is "crossover" phenomena between mesoscopic magnetism and microscopic quantum interference effects, which provides fundamental knowledge upon quantum spin transport.

AB - Quantum phase modulation is achieved in a metallic nanoring with a FeNi/Cu/FeNi (ferromagnet/normal-metal/ferromagnet) layer. Both frequency and amplitude of Aharonov-Bohm oscillation are found to be modified with respect to the magnetization configurations, indicating that the phase modulation originates from the spin-orbit scattering induced by the magnetization of the ferromagnets. Such phase modulation is "crossover" phenomena between mesoscopic magnetism and microscopic quantum interference effects, which provides fundamental knowledge upon quantum spin transport.

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Effect of ferromagnetism on AB oscillations in a normal-metal ring

Abstract

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