First observation of the de Haas-van Alphen effect in NpNiGa5

Dai Aoki; Etsuji Yamamoto; Yoshiya Homma; Yoshinobu Shiokawa; Akio Nakamura; Yoshinori Haga; Rikio Settai; Yoshichika Onuki

doi:10.1143/JPSJ.73.519

First observation of the de Haas-van Alphen effect in NpNiGa₅

Dai Aoki, Etsuji Yamamoto, Yoshiya Homma, Yoshinobu Shiokawa, Akio Nakamura, Yoshinori Haga, Rikio Settai, Yoshichika Onuki

IMR - Materials Processing and Characterization Division

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39 Citations (Scopus)

Abstract

We succeeded in observing the de Haas-van Alphen (dHvA) oscillations in NpNiGa₅ single crystals, which were grown by the Ga-flux method. This is the first dHvA observation in transuranium compounds. The cyclotron effective masses were moderately enhanced, ranging from 1.8 to 4.9m₀ (m₀: rest mass of an electron). From an intensive change of the dHvA amplitude at 80-90kOe and the temperature dependence of the electrical resistivity, NpNiGa₅ is most likely an antiferromagnet with a Néel temperature, T_N = 30K.

Original language	English
Pages (from-to)	519-522
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	73
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.73.519
Publication status	Published - 2004 Mar

Keywords

De Haas-van Alphen effect
NpNiGa
Transuranium compound

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10.1143/JPSJ.73.519

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abstract = "We succeeded in observing the de Haas-van Alphen (dHvA) oscillations in NpNiGa5 single crystals, which were grown by the Ga-flux method. This is the first dHvA observation in transuranium compounds. The cyclotron effective masses were moderately enhanced, ranging from 1.8 to 4.9m0 (m0: rest mass of an electron). From an intensive change of the dHvA amplitude at 80-90kOe and the temperature dependence of the electrical resistivity, NpNiGa5 is most likely an antiferromagnet with a N{\'e}el temperature, TN = 30K.",

keywords = "De Haas-van Alphen effect, NpNiGa, Transuranium compound",

author = "Dai Aoki and Etsuji Yamamoto and Yoshiya Homma and Yoshinobu Shiokawa and Akio Nakamura and Yoshinori Haga and Rikio Settai and Yoshichika Onuki",

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T1 - First observation of the de Haas-van Alphen effect in NpNiGa5

AU - Aoki, Dai

AU - Yamamoto, Etsuji

AU - Homma, Yoshiya

AU - Shiokawa, Yoshinobu

AU - Nakamura, Akio

AU - Haga, Yoshinori

AU - Settai, Rikio

AU - Onuki, Yoshichika

PY - 2004/3

Y1 - 2004/3

N2 - We succeeded in observing the de Haas-van Alphen (dHvA) oscillations in NpNiGa5 single crystals, which were grown by the Ga-flux method. This is the first dHvA observation in transuranium compounds. The cyclotron effective masses were moderately enhanced, ranging from 1.8 to 4.9m0 (m0: rest mass of an electron). From an intensive change of the dHvA amplitude at 80-90kOe and the temperature dependence of the electrical resistivity, NpNiGa5 is most likely an antiferromagnet with a Néel temperature, TN = 30K.

AB - We succeeded in observing the de Haas-van Alphen (dHvA) oscillations in NpNiGa5 single crystals, which were grown by the Ga-flux method. This is the first dHvA observation in transuranium compounds. The cyclotron effective masses were moderately enhanced, ranging from 1.8 to 4.9m0 (m0: rest mass of an electron). From an intensive change of the dHvA amplitude at 80-90kOe and the temperature dependence of the electrical resistivity, NpNiGa5 is most likely an antiferromagnet with a Néel temperature, TN = 30K.

KW - De Haas-van Alphen effect

KW - NpNiGa

KW - Transuranium compound

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JO - Journal of the Physical Society of Japan

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First observation of the de Haas-van Alphen effect in NpNiGa₅

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Keywords

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