Spin Hall magnetoresistance in the non-collinear ferrimagnet GdIG close to the compensation temperature

Dong, Bo -Wen; Cramer, Joel; Ganzhorn, Kathrin; Yuan, H. Y.; Guo, Er-Jia; Goennenwein, Sebastian T. B.; Klaui, Mathias

doi:10.1088/1361-648X/aa9e26

Title: Spin Hall magnetoresistance in the non-collinear ferrimagnet GdIG close to the compensation temperature

Journal Article · Thu Dec 14 00:00:00 EST 2017 · Journal of Physics. Condensed Matter

DOI:https://doi.org/10.1088/1361-648X/aa9e26· OSTI ID:1436923

Dong, Bo -Wen ^[1]; Cramer, Joel ^[2]; Ganzhorn, Kathrin ^[3]; Yuan, H. Y. ^[4];

^[5]; Goennenwein, Sebastian T. B. ^[6];

^[2]

Univ. of Science and Technology Beijing, Beijing (People's Republic of China); Graduate School of Excellence Materials Science in Mainz (MAINZ), Mainz (Germany); Johannes Gutenberg-Univ. Mainz, Mainz (Germany)
Graduate School of Excellence Materials Science in Mainz (MAINZ), Mainz (Germany); Johannes Gutenberg-Univ. Mainz, Mainz (Germany)
Walther-MeiBner-Institut, Garching (Germany); Technische Univ. Munchen, Garching (Germany)
Johannes Gutenberg-Univ. Mainz, Mainz (Germany); Southern Univ. of Science and Technology, Guangdong (People's Republic of China)
Johannes Gutenberg-Univ. Mainz, Mainz (Germany); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Walther-MeiBner-Institut, Garching (Germany); Technische Univ. Munchen, Garching (Germany); Technische Univ. Dresden, Dresden (Germany)

We investigate the spin Hall magnetoresistance (SMR) in a gadolinium iron garnet (GdIG)/platinum (Pt) heterostructure by angular dependent magnetoresistance measurements. The magnetic structure of the ferromagnetic insulator GdIG is non-collinear near the compensation temperature, while it is collinear far from the compensation temperature. In the collinear regime, the SMR signal in GdIG is consistent with the usual $${\rm si}{{{\rm n}}^{2}}\theta $$ relation well established in the collinear magnet yttrium iron garnet, with $$\theta $$ the angle between magnetization and spin Hall spin polarization direction. In the non-collinear regime, both an SMR signal with inverted sign and a more complex angular dependence with four maxima are observed within one sweep cycle. The number of maxima as well as the relative strength of different maxima depend strongly on temperature and field strength. Lastly, our results evidence a complex SMR behavior in the non-collinear magnetic regime that goes beyond the conventional formalism developed for collinear magnetic structures.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1436923

Journal Information:: Journal of Physics. Condensed Matter, Vol. 30, Issue 3; ISSN 0953-8984

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 22 works

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Antiferromagnetic NiO thickness dependent sign of the spin Hall magnetoresistance in γ-Fe ₂ O ₃ /NiO/Pt epitaxial stacks Dong, Bo-Wen; Baldrati, Lorenzo; Schneider, Christoph Applied Physics Letters, Vol. 114, Issue 10 https://doi.org/10.1063/1.5080766	journal	March 2019
Spin Hall magnetoresistance in heterostructures consisting of noncrystalline paramagnetic YIG and Pt Lammel, Michaela; Schlitz, Richard; Geishendorf, Kevin Applied Physics Letters, Vol. 114, Issue 25 https://doi.org/10.1063/1.5090098	journal	June 2019
Role of interface quality for the spin Hall magnetoresistance in nickel ferrite thin films with bulk-like magnetic properties Althammer, Matthias; Singh, Amit Vikram; Wimmer, Tobias Applied Physics Letters, Vol. 115, Issue 9 https://doi.org/10.1063/1.5097600	journal	August 2019
Simultaneous detection of the spin Hall magnetoresistance and Joule heating-induced spin Seebeck effect in Gd ₃ Fe ₅ O ₁₂ /Pt bilayers Fayaz, Muhammad Umer; Saleem, Muhammad Shahrukh; Gu, Youdi Journal of Applied Physics, Vol. 126, Issue 18 https://doi.org/10.1063/1.5117172	journal	November 2019
Spin Hall magnetoresistance in heterostructures consisting of noncrystalline paramagnetic YIG and Pt Lammel, Michaela; Schlitz, Richard; Geishendorf, Kevin arXiv https://doi.org/10.48550/arxiv.1901.09986	text	January 2019

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
spin Hall magnetoresistance
non-collinear ferrimagnet
spin current