Itinerant 5f Electrons and the fermi surface properties in an enhanced pauli paramagnet NpGe3

Dai Aoki; Hiroshi Yamagami; Yoshiya Homma; Yoshinobu Shiokawa; Etsuji Yamamoto Akio; Nakamurayoshinori Haga; Rikio Settai; Yoshichika Onuki

doi:10.1143/JPSJ.74.2149

Itinerant 5f Electrons and the fermi surface properties in an enhanced pauli paramagnet NpGe₃

Dai Aoki, Hiroshi Yamagami, Yoshiya Homma, Yoshinobu Shiokawa, Etsuji Yamamoto Akio, Nakamurayoshinori Haga, Rikio Settai, Yoshichika Onuki

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

We succeeded in growing a high-quality single crystal of an enhanced Pauli paramagnet, NpGe₃, by the Bi-flux method, and observed the de Haas-van Alphen (dHvA) effect. The topology of a Fermi surface is well explained by the relativistic linear augmented-plane-wave (LAPW) band calculations based on the 5f itinerant band model. The Fermi surface consists of a nearly spherical electron-Fermi surface with necks along the h100i direction, forming a hollow ball, centered at the R point, which is derived from the single band. The cyclotron effective mass is in the range from 2:6 to 16m0, which is enhanced approximately 3.5 times from the corresponding band mass.

Original language	English
Pages (from-to)	2149-2152
Number of pages	4
Journal	journal of the physical society of japan
Volume	74
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.74.2149
Publication status	Published - 2005 Aug 1

Keywords

Band calculation
De Haas-van alphen effect
Fermi surface
NpGe

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.74.2149

Cite this

Itinerant 5f Electrons and the fermi surface properties in an enhanced pauli paramagnet NpGe₃. / Aoki, Dai; Yamagami, Hiroshi; Homma, Yoshiya; Shiokawa, Yoshinobu; Akio, Etsuji Yamamoto; Haga, Nakamurayoshinori; Settai, Rikio; Onuki, Yoshichika.

In: journal of the physical society of japan, Vol. 74, No. 8, 01.08.2005, p. 2149-2152.

Research output: Contribution to journal › Article › peer-review

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abstract = "We succeeded in growing a high-quality single crystal of an enhanced Pauli paramagnet, NpGe3, by the Bi-flux method, and observed the de Haas-van Alphen (dHvA) effect. The topology of a Fermi surface is well explained by the relativistic linear augmented-plane-wave (LAPW) band calculations based on the 5f itinerant band model. The Fermi surface consists of a nearly spherical electron-Fermi surface with necks along the h100i direction, forming a hollow ball, centered at the R point, which is derived from the single band. The cyclotron effective mass is in the range from 2:6 to 16m0, which is enhanced approximately 3.5 times from the corresponding band mass.",

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AU - Aoki, Dai

AU - Yamagami, Hiroshi

AU - Homma, Yoshiya

AU - Shiokawa, Yoshinobu

AU - Akio, Etsuji Yamamoto

AU - Haga, Nakamurayoshinori

AU - Settai, Rikio

AU - Onuki, Yoshichika

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AB - We succeeded in growing a high-quality single crystal of an enhanced Pauli paramagnet, NpGe3, by the Bi-flux method, and observed the de Haas-van Alphen (dHvA) effect. The topology of a Fermi surface is well explained by the relativistic linear augmented-plane-wave (LAPW) band calculations based on the 5f itinerant band model. The Fermi surface consists of a nearly spherical electron-Fermi surface with necks along the h100i direction, forming a hollow ball, centered at the R point, which is derived from the single band. The cyclotron effective mass is in the range from 2:6 to 16m0, which is enhanced approximately 3.5 times from the corresponding band mass.

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