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PhysRevApplied.16.064058.pdf4.82 MBAdobe PDF見る/開く
タイトル: Probing Thermal Magnon Current Mediated by Coherent Magnon via Nitrogen-Vacancy Centers in Diamond
著者: Prananto, Dwi
Kainuma, Yuta
Hayashi, Kunitaka
Mizuochi, Norikazu  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-3099-3210 (unconfirmed)
Uchida, Ken-ichi
An, Toshu
著者名の別形: 水落, 憲和
キーワード: Magnetization dynamics
Magnons
Nitrogen vacancy centers in diamond
Quantum sensing
Spin Seebeck effect
Spin caloritronics
Spin waves
Optically detected magnetic resonance
Condensed Matter, Materials & Applied Physics
Quantum Information
発行日: Dec-2021
出版者: American Physical Society (APS)
誌名: Physical Review Applied
巻: 16
号: 6
論文番号: 064058
抄録: Currently, thermally excited magnons are being intensively investigated, owing to their potential in computing devices and thermoelectric conversion technologies. We report the detection of a thermal magnon current propagating in a magnetic insulator yttrium iron garnet under a temperature gradient using a quantum sensor: electron spins associated with nitrogen-vacancy (N-V) centers in diamond. A thermal magnon current is observed as modified Rabi-oscillation frequencies of N-V spins hosted in a beam-shaped bulk diamond that is resonantly coupled with coherent magnon propagating over a long distance. Additionally, using a nanodiamond, alteration in N-V spin-relaxation rates, depending on the applied temperature gradient, are observed under nonresonant N-V excitation conditions. The demonstration of probing a thermal magnon current mediated by coherent magnons via N-V spin states serves as a basis for creating a device platform that hybridizes spin caloritronics and spin qubits.
著作権等: © 2021 American Physical Society
URI: http://hdl.handle.net/2433/279920
DOI(出版社版): 10.1103/PhysRevApplied.16.064058
出現コレクション:学術雑誌掲載論文等

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