Electrical detection of nuclear spin-echo signals in an electron spin injection system

Lin, Zhichao; Rasly, Mahmoud; Uemura, Tetsuya

Electrical detection of nuclear spin-echo signals in an electron spin injection system

Lin, Zhichao; Rasly, Mahmoud; Uemura, Tetsuya

Applied physics letters, 2017, 110(23), 232404

Permalink : https://hdl.handle.net/2115/70677

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アクセス権	open access
URI	https://hdl.handle.net/2115/70677
タイトル	Electrical detection of nuclear spin-echo signals in an electron spin injection system
著者	Lin, Zhichao ; Rasly, Mahmoud ; Uemura, Tetsuya
著者名 Lin, Zhichao
著者名 Rasly, Mahmoud
e-Rad_Researcher 20344476 著者名 Uemura, Tetsuya
言語	英語
発行日	2017-06-05
出版者	American Institute of Physics (AIP)
収録物名	Applied physics letters
巻(号)	110(23)
ページ	232404
抄録	We demonstrated spin echoes of nuclear spins in a spin injection device with a highly polarized spin source by nuclear magnetic resonance (NMR). Efficient spin injection into GaAs from a half-metallic spin source of Co2MnSi enabled efficient dynamic nuclear polarization (DNP) and sensitive detection of NMR signals even at a low magnetic field of similar to 0.1 T and a relatively high temperature of 4.2K. The intrinsic coherence time T-2 of Ga-69 nuclear spins was evaluated from the spin-echo signals. The relation between T-2 and the decay time of the Rabi oscillation suggests that the inhomogeneous effects in our system are not obvious. This study provides an all-electrical NMR system for nuclear-spin-based qubits.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in Appl. Phys. Lett. 110(23), 232404 (2017) and may be found at http://dx.doi.org/10.1063/1.4985650.
PISSN	0003-6951
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.4985650