Electrical and magnetic properties of an ising-type ferromagnet NpSb 2

Yoshiya Homma; Dai Aoki; Yoshinori Haga; Hironori Sakai; Shugo Ikeda; Etsuji Yamamoto; Akio Nakamura; Yoshinobu Shiokawa; Yoshichika Onuki

doi:10.1143/JPSJ.76.074715

Electrical and magnetic properties of an ising-type ferromagnet NpSb ₂

Yoshiya Homma, Dai Aoki, Yoshinori Haga, Hironori Sakai, Shugo Ikeda, Etsuji Yamamoto, Akio Nakamura, Yoshinobu Shiokawa, Yoshichika Onuki

Materials Processing and Characterization Division

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

1 Citation (Scopus)

Abstract

We succeeded in growing a single crystal of NpSb ₂ with the SmSb ₂-type orthorhombic structure by the Sb-flux method and measured the electrical resistivity, specific heat, magnetic susceptibility and magnetization. NpSb ₂ is found to be an Ising-type ferromagnet with the Curie temperature T _C = 47 K, where the ordered moment of 1.6μ _B/Np is oriented along the [001] direction. The electronic specific heat coefficient is estimated to be 22 mJ/(K ²·mol). The electrical resistivity for the current J ∥ [001] is by two orders of magnitude larger than that for J ⊥ [001], suggesting the quasi-two-dimensional electronic state.

Original language	English
Article number	074715
Journal	journal of the physical society of japan
Volume	76
Issue number	7
DOIs	https://doi.org/10.1143/JPSJ.76.074715
Publication status	Published - 2007 Jul

Keywords

Ising-type ferromagnet
NpSb
Quasi-two-dimensional electronic state
Transuranium compound

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.76.074715

Cite this

@article{856825a15ad5461393494a6315466168,

title = "Electrical and magnetic properties of an ising-type ferromagnet NpSb 2 ",

abstract = "We succeeded in growing a single crystal of NpSb 2 with the SmSb 2-type orthorhombic structure by the Sb-flux method and measured the electrical resistivity, specific heat, magnetic susceptibility and magnetization. NpSb 2 is found to be an Ising-type ferromagnet with the Curie temperature T C = 47 K, where the ordered moment of 1.6μ B/Np is oriented along the [001] direction. The electronic specific heat coefficient is estimated to be 22 mJ/(K 2·mol). The electrical resistivity for the current J ∥ [001] is by two orders of magnitude larger than that for J ⊥ [001], suggesting the quasi-two-dimensional electronic state.",

keywords = "Ising-type ferromagnet, NpSb, Quasi-two-dimensional electronic state, Transuranium compound",

author = "Yoshiya Homma and Dai Aoki and Yoshinori Haga and Hironori Sakai and Shugo Ikeda and Etsuji Yamamoto and Akio Nakamura and Yoshinobu Shiokawa and Yoshichika Onuki",

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T1 - Electrical and magnetic properties of an ising-type ferromagnet NpSb 2

AU - Homma, Yoshiya

AU - Aoki, Dai

AU - Haga, Yoshinori

AU - Sakai, Hironori

AU - Ikeda, Shugo

AU - Yamamoto, Etsuji

AU - Nakamura, Akio

AU - Shiokawa, Yoshinobu

AU - Onuki, Yoshichika

PY - 2007/7

Y1 - 2007/7

N2 - We succeeded in growing a single crystal of NpSb 2 with the SmSb 2-type orthorhombic structure by the Sb-flux method and measured the electrical resistivity, specific heat, magnetic susceptibility and magnetization. NpSb 2 is found to be an Ising-type ferromagnet with the Curie temperature T C = 47 K, where the ordered moment of 1.6μ B/Np is oriented along the [001] direction. The electronic specific heat coefficient is estimated to be 22 mJ/(K 2·mol). The electrical resistivity for the current J ∥ [001] is by two orders of magnitude larger than that for J ⊥ [001], suggesting the quasi-two-dimensional electronic state.

AB - We succeeded in growing a single crystal of NpSb 2 with the SmSb 2-type orthorhombic structure by the Sb-flux method and measured the electrical resistivity, specific heat, magnetic susceptibility and magnetization. NpSb 2 is found to be an Ising-type ferromagnet with the Curie temperature T C = 47 K, where the ordered moment of 1.6μ B/Np is oriented along the [001] direction. The electronic specific heat coefficient is estimated to be 22 mJ/(K 2·mol). The electrical resistivity for the current J ∥ [001] is by two orders of magnitude larger than that for J ⊥ [001], suggesting the quasi-two-dimensional electronic state.

KW - Ising-type ferromagnet

KW - NpSb

KW - Quasi-two-dimensional electronic state

KW - Transuranium compound

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