73Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe2

Y. Noma; H. Kotegawa; T. Kubo; H. Tou; H. Harima; Y. Haga; E. Yamamoto; Y. Ōnuki; K. M. Itoh; E. E. Haller; A. Nakamura; Y. Homma; F. Honda; D. Aoki

doi:10.1016/j.physb.2017.10.023

⁷³Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe₂

Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Ōnuki, K. M. Itoh, E. E. Haller, A. Nakamura, Y. Homma, F. Honda, D. Aoki

塾長

研究成果: Article › 査読

抄録

We report ⁷³Ge-NMR measurement on the ferromagnetic superconductor UGe₂ at ambient pressure. The observed NMR spectrum supports that the electric field gradient at three inequivalent Ge sites is correctly deduced by a LDA calculation. The temperature dependences of the nuclear spin lattice relaxation rate 1/T₁ for H₀⊥a (easy axis) and H₀∥a were obtained for the oriented sample. The contrasting behavior in 1/T₁ for H₀⊥a and H₀∥a reveals that the magnetic fluctuation of UGe₂ is highly anisotropic.

本文言語	English
ページ（範囲）	543-545
ページ数	3
ジャーナル	Physica B: Condensed Matter
巻	536
DOI	https://doi.org/10.1016/j.physb.2017.10.023
出版ステータス	Published - 2018 5月 1

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

文献へのアクセス

10.1016/j.physb.2017.10.023

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引用スタイル

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title = "73Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe2 ",

abstract = "We report 73Ge-NMR measurement on the ferromagnetic superconductor UGe2 at ambient pressure. The observed NMR spectrum supports that the electric field gradient at three inequivalent Ge sites is correctly deduced by a LDA calculation. The temperature dependences of the nuclear spin lattice relaxation rate 1/T1 for H0⊥a (easy axis) and H0∥a were obtained for the oriented sample. The contrasting behavior in 1/T1 for H0⊥a and H0∥a reveals that the magnetic fluctuation of UGe2 is highly anisotropic.",

keywords = "Ferromagnetic superconductor, Magnetic fluctuations, NMR, UGe",

author = "Y. Noma and H. Kotegawa and T. Kubo and H. Tou and H. Harima and Y. Haga and E. Yamamoto and Y. Ōnuki and Itoh, {K. M.} and Haller, {E. E.} and A. Nakamura and Y. Homma and F. Honda and D. Aoki",

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doi = "10.1016/j.physb.2017.10.023",

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T1 - 73Ge-NMR study on magnetic fluctuations of ferromagnetic superconductor UGe2

AU - Noma, Y.

AU - Kotegawa, H.

AU - Kubo, T.

AU - Tou, H.

AU - Harima, H.

AU - Haga, Y.

AU - Yamamoto, E.

AU - Ōnuki, Y.

AU - Itoh, K. M.

AU - Haller, E. E.

AU - Nakamura, A.

AU - Homma, Y.

AU - Honda, F.

AU - Aoki, D.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - We report 73Ge-NMR measurement on the ferromagnetic superconductor UGe2 at ambient pressure. The observed NMR spectrum supports that the electric field gradient at three inequivalent Ge sites is correctly deduced by a LDA calculation. The temperature dependences of the nuclear spin lattice relaxation rate 1/T1 for H0⊥a (easy axis) and H0∥a were obtained for the oriented sample. The contrasting behavior in 1/T1 for H0⊥a and H0∥a reveals that the magnetic fluctuation of UGe2 is highly anisotropic.

AB - We report 73Ge-NMR measurement on the ferromagnetic superconductor UGe2 at ambient pressure. The observed NMR spectrum supports that the electric field gradient at three inequivalent Ge sites is correctly deduced by a LDA calculation. The temperature dependences of the nuclear spin lattice relaxation rate 1/T1 for H0⊥a (easy axis) and H0∥a were obtained for the oriented sample. The contrasting behavior in 1/T1 for H0⊥a and H0∥a reveals that the magnetic fluctuation of UGe2 is highly anisotropic.

KW - Ferromagnetic superconductor

KW - Magnetic fluctuations

KW - NMR

KW - UGe

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