Spin-current probe for phase transition in an insulator

Zhiyong Qiu; Jia Li; Dazhi Hou; Elke Arenholz; Alpha T. N'Diaye; Ali Tan; Ken Ichi Uchida; Koji Sato; Satoshi Okamoto; Yaroslav Tserkovnyak; Z. Q. Qiu; Eiji Saitoh

doi:10.1038/ncomms12670

Spin-current probe for phase transition in an insulator

Zhiyong Qiu, Jia Li, Dazhi Hou, Elke Arenholz, Alpha T. N'Diaye, Ali Tan, Ken Ichi Uchida, Koji Sato, Satoshi Okamoto, Yaroslav Tserkovnyak, Z. Q. Qiu, Eiji Saitoh

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

129 Citations (Scopus)

Abstract

Spin fluctuation and transition have always been one of the central topics of magnetism and condensed matter science. Experimentally, the spin fluctuation is found transcribed onto scattering intensity in the neutron-scattering process, which is represented by dynamical magnetic susceptibility and maximized at phase transitions. Importantly, a neutron carries spin without electric charge, and therefore it can bring spin into a sample without being disturbed by electric energy. However, large facilities such as a nuclear reactor are necessary. Here we show that spin pumping, frequently used in nanoscale spintronic devices, provides a desktop microprobe for spin transition; spin current is a flux of spin without an electric charge and its transport reflects spin excitation. We demonstrate detection of antiferromagnetic transition in ultra-thin CoO films via frequency-dependent spin-current transmission measurements, which provides a versatile probe for phase transition in an electric manner in minute devices.

Original language	English
Article number	12670
Journal	Nature communications
Volume	7
DOIs	https://doi.org/10.1038/ncomms12670
Publication status	Published - 2016 Aug 30

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

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10.1038/ncomms12670

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@article{e99570f2861847a8a7cd39eabfad0ce6,

title = "Spin-current probe for phase transition in an insulator",

abstract = "Spin fluctuation and transition have always been one of the central topics of magnetism and condensed matter science. Experimentally, the spin fluctuation is found transcribed onto scattering intensity in the neutron-scattering process, which is represented by dynamical magnetic susceptibility and maximized at phase transitions. Importantly, a neutron carries spin without electric charge, and therefore it can bring spin into a sample without being disturbed by electric energy. However, large facilities such as a nuclear reactor are necessary. Here we show that spin pumping, frequently used in nanoscale spintronic devices, provides a desktop microprobe for spin transition; spin current is a flux of spin without an electric charge and its transport reflects spin excitation. We demonstrate detection of antiferromagnetic transition in ultra-thin CoO films via frequency-dependent spin-current transmission measurements, which provides a versatile probe for phase transition in an electric manner in minute devices.",

author = "Zhiyong Qiu and Jia Li and Dazhi Hou and Elke Arenholz and N'Diaye, {Alpha T.} and Ali Tan and Uchida, {Ken Ichi} and Koji Sato and Satoshi Okamoto and Yaroslav Tserkovnyak and Qiu, {Z. Q.} and Eiji Saitoh",

note = "Funding Information: This work was supported by JST-ERATO 'Spin Quantum Rectification', JST-PRESTO 'Phase Interfaces for Highly Efficient Energy Utilization', Grant-in-Aid for Scientific Research on Innovative Area, 'Nano Spin Conversion Science' (26103005 and 26103006), Grant-in-Aid for Scientific Research (S) (25220910), Grant-in-Aid for Scientific Research (A) (25247056 and 15H02012), Grant-in-Aid for Challenging Exploratory Research (26600067), Grant-in-Aid for Research Activity Start-up (25889003), and World Premier International Research Center Initiative (WPI), all from MEXT, Japan, the ImPACT program of the Council for Science, Technology and Innovation, Cabinet Office, Japan, and NEC corporation. Financial support from National Science Foundation DMR-1504568, Future Materials Discovery Program through the National Research Foundation of Korea (No. 2015M3D1A1070467), and Science Research Center Program through the National Research Foundation of Korea (No. 2015R1A5A1009962) is gratefully acknowledged (J. L., A. T., Z. Q.). The Advanced Light Source is supported by the US Department of Energy under contract number DE-AC02-05CH11231 (E.A., A.N.). The research by S.O. is supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Y.T is supported by U.S. Department of Energy, Office of Basic Energy Sciences under Award No. DE-SC0012190. Publisher Copyright: {\textcopyright} 2016 The Author(s).",

year = "2016",

month = aug,

day = "30",

doi = "10.1038/ncomms12670",

language = "English",

volume = "7",

journal = "Nature Communications",

issn = "2041-1723",

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T1 - Spin-current probe for phase transition in an insulator

AU - Qiu, Zhiyong

AU - Li, Jia

AU - Hou, Dazhi

AU - Arenholz, Elke

AU - N'Diaye, Alpha T.

AU - Tan, Ali

AU - Uchida, Ken Ichi

AU - Sato, Koji

AU - Okamoto, Satoshi

AU - Tserkovnyak, Yaroslav

AU - Qiu, Z. Q.

AU - Saitoh, Eiji

N1 - Funding Information: This work was supported by JST-ERATO 'Spin Quantum Rectification', JST-PRESTO 'Phase Interfaces for Highly Efficient Energy Utilization', Grant-in-Aid for Scientific Research on Innovative Area, 'Nano Spin Conversion Science' (26103005 and 26103006), Grant-in-Aid for Scientific Research (S) (25220910), Grant-in-Aid for Scientific Research (A) (25247056 and 15H02012), Grant-in-Aid for Challenging Exploratory Research (26600067), Grant-in-Aid for Research Activity Start-up (25889003), and World Premier International Research Center Initiative (WPI), all from MEXT, Japan, the ImPACT program of the Council for Science, Technology and Innovation, Cabinet Office, Japan, and NEC corporation. Financial support from National Science Foundation DMR-1504568, Future Materials Discovery Program through the National Research Foundation of Korea (No. 2015M3D1A1070467), and Science Research Center Program through the National Research Foundation of Korea (No. 2015R1A5A1009962) is gratefully acknowledged (J. L., A. T., Z. Q.). The Advanced Light Source is supported by the US Department of Energy under contract number DE-AC02-05CH11231 (E.A., A.N.). The research by S.O. is supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Y.T is supported by U.S. Department of Energy, Office of Basic Energy Sciences under Award No. DE-SC0012190. Publisher Copyright: © 2016 The Author(s).

PY - 2016/8/30

Y1 - 2016/8/30

N2 - Spin fluctuation and transition have always been one of the central topics of magnetism and condensed matter science. Experimentally, the spin fluctuation is found transcribed onto scattering intensity in the neutron-scattering process, which is represented by dynamical magnetic susceptibility and maximized at phase transitions. Importantly, a neutron carries spin without electric charge, and therefore it can bring spin into a sample without being disturbed by electric energy. However, large facilities such as a nuclear reactor are necessary. Here we show that spin pumping, frequently used in nanoscale spintronic devices, provides a desktop microprobe for spin transition; spin current is a flux of spin without an electric charge and its transport reflects spin excitation. We demonstrate detection of antiferromagnetic transition in ultra-thin CoO films via frequency-dependent spin-current transmission measurements, which provides a versatile probe for phase transition in an electric manner in minute devices.

AB - Spin fluctuation and transition have always been one of the central topics of magnetism and condensed matter science. Experimentally, the spin fluctuation is found transcribed onto scattering intensity in the neutron-scattering process, which is represented by dynamical magnetic susceptibility and maximized at phase transitions. Importantly, a neutron carries spin without electric charge, and therefore it can bring spin into a sample without being disturbed by electric energy. However, large facilities such as a nuclear reactor are necessary. Here we show that spin pumping, frequently used in nanoscale spintronic devices, provides a desktop microprobe for spin transition; spin current is a flux of spin without an electric charge and its transport reflects spin excitation. We demonstrate detection of antiferromagnetic transition in ultra-thin CoO films via frequency-dependent spin-current transmission measurements, which provides a versatile probe for phase transition in an electric manner in minute devices.

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DO - 10.1038/ncomms12670

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VL - 7

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 12670

ER -

Spin-current probe for phase transition in an insulator

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