Observation of the D’yakonov-Perel’ Spin Relaxation in Single-Crystalline Pt Thin Films

Jeongchun Ryu, Makoto Kohda, and Junsaku Nitta
Phys. Rev. Lett. 116, 256802 – Published 22 June 2016
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Abstract

The spin relaxation mechanism in single-crystalline and polycrystalline platinum (Pt) thin films is revealed by a quantum interference effect. Examining the relationship between the spin relaxation rate and momentum scattering rate by changing Pt thickness, we find that the spin relaxation rate of Pt strongly depends on both crystal structure and thickness even though the quality of material (Pt) is unchanged. In particular, the D’yakonov-Perel’ mechanism is considered as a dominant mechanism under cases where scattering events are suppressed or the interface effect is not negligible.

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  • Received 30 November 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.256802

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Jeongchun Ryu, Makoto Kohda, and Junsaku Nitta*

  • Department of Materials Science, Tohoku University, Sendai 980-8579, Japan

  • *nitta@material.tohoku.ac.jp

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Issue

Vol. 116, Iss. 25 — 24 June 2016

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