Journal
NATURE COMMUNICATIONS
Volume 7, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms12670
Keywords
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Categories
Funding
- JST-ERATO 'Spin Quantum Rectification'
- JST-PRESTO 'Phase Interfaces for Highly Efficient Energy Utilization'
- MEXT, Japan
- ImPACT program of the Council for Science, Technology and Innovation, Cabinet Office, Japan
- NEC corporation
- National Science Foundation [DMR-1504568]
- Future Materials Discovery Program through the National Research Foundation of Korea [2015M3D1A1070467]
- Science Research Center Program through the National Research Foundation of Korea [2015R1A5A1009962]
- US Department of Energy [DE-AC02-05CH11231]
- US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0012190]
- World Premier International Research Center Initiative (WPI)
- [26103005]
- [26103006]
- [25220910]
- [25247056]
- [15H02012]
- [26600067]
- [25889003]
- Direct For Mathematical & Physical Scien [1504568] Funding Source: National Science Foundation
- Division Of Materials Research [1504568] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [15H02012, 26103005] Funding Source: KAKEN
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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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