NMR study of the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3

K. Magishi; R. Watanabe; A. Hisada; T. Saito; K. Koyama; S. Okada; Y. Kamihara; N. Ohkubo; S. Ban; M. Matoba

doi:10.1088/1742-6596/969/1/012068

NMR study of the layered cobalt oxyphosphide Sr₂Sc(Co_1-xFe _x )PO₃

K. Magishi, R. Watanabe, A. Hisada, T. Saito, K. Koyama, S. Okada, Y. Kamihara, N. Ohkubo, S. Ban, M. Matoba

物理情報工学科

研究成果: Conference article › 査読

抄録

We report the results of ³¹P-nuclear magnetic resonance (NMR) measurements on the layered cobalt oxyphosphide Sr₂Sc(Co_1-xFe _x )PO₃ in order to investigate the magnetic properties at low temperatures from a microscopic view point. The ³¹P-Knight shifts measured at the resonance peak maximum of Sr₂Sc(Co_1-xFe _x )PO₃ have positive values and are T-independent in an entire temperature range, and the absolute value decreases with increasing Fe content. Also, the nuclear spin-lattice relaxation rate 1/T ₁ is almost proportional to the temperature at low temperatures. The magnitude of 1/T ₁ T decreases with increasing the Fe content, which suggests the decrease of the density of states around the Fermi level.

本文言語	English
論文番号	012068
ジャーナル	Journal of Physics: Conference Series
巻	969
号	1
DOI	https://doi.org/10.1088/1742-6596/969/1/012068
出版ステータス	Published - 2018 4月 19
イベント	28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden 継続期間: 2017 8月 9 → 2017 8月 16

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1088/1742-6596/969/1/012068

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引用スタイル

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title = "NMR study of the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3",

abstract = "We report the results of 31P-nuclear magnetic resonance (NMR) measurements on the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3 in order to investigate the magnetic properties at low temperatures from a microscopic view point. The 31P-Knight shifts measured at the resonance peak maximum of Sr2Sc(Co1-xFe x )PO3 have positive values and are T-independent in an entire temperature range, and the absolute value decreases with increasing Fe content. Also, the nuclear spin-lattice relaxation rate 1/T 1 is almost proportional to the temperature at low temperatures. The magnitude of 1/T 1 T decreases with increasing the Fe content, which suggests the decrease of the density of states around the Fermi level.",

author = "K. Magishi and R. Watanabe and A. Hisada and T. Saito and K. Koyama and S. Okada and Y. Kamihara and N. Ohkubo and S. Ban and M. Matoba",

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T1 - NMR study of the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3

AU - Magishi, K.

AU - Watanabe, R.

AU - Hisada, A.

AU - Saito, T.

AU - Koyama, K.

AU - Okada, S.

AU - Kamihara, Y.

AU - Ohkubo, N.

AU - Ban, S.

AU - Matoba, M.

PY - 2018/4/19

Y1 - 2018/4/19

N2 - We report the results of 31P-nuclear magnetic resonance (NMR) measurements on the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3 in order to investigate the magnetic properties at low temperatures from a microscopic view point. The 31P-Knight shifts measured at the resonance peak maximum of Sr2Sc(Co1-xFe x )PO3 have positive values and are T-independent in an entire temperature range, and the absolute value decreases with increasing Fe content. Also, the nuclear spin-lattice relaxation rate 1/T 1 is almost proportional to the temperature at low temperatures. The magnitude of 1/T 1 T decreases with increasing the Fe content, which suggests the decrease of the density of states around the Fermi level.

AB - We report the results of 31P-nuclear magnetic resonance (NMR) measurements on the layered cobalt oxyphosphide Sr2Sc(Co1-xFe x )PO3 in order to investigate the magnetic properties at low temperatures from a microscopic view point. The 31P-Knight shifts measured at the resonance peak maximum of Sr2Sc(Co1-xFe x )PO3 have positive values and are T-independent in an entire temperature range, and the absolute value decreases with increasing Fe content. Also, the nuclear spin-lattice relaxation rate 1/T 1 is almost proportional to the temperature at low temperatures. The magnitude of 1/T 1 T decreases with increasing the Fe content, which suggests the decrease of the density of states around the Fermi level.

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