Magnetic structure and successive phase transition in NpRhGa5

Shintaro Jonen; Naoto Metoki; Fuminori Honda; Koji Kaneko; Dai Aoki; Yoshiya Homma; Etsuji Yamamoto; Yoshinori Haga; Yoshinobu Shiokawa; Yoshichika Onuki

doi:10.1016/j.physb.2006.01.503

Magnetic structure and successive phase transition in NpRhGa₅

Shintaro Jonen, Naoto Metoki, Fuminori Honda, Koji Kaneko, Dai Aoki, Yoshiya Homma, Etsuji Yamamoto, Yoshinori Haga, Yoshinobu Shiokawa, Yoshichika Onuki

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

Abstract

The magnetic structure of NpRhGa₅ has been investigated by neutron scattering. NpRhGa₅ exhibits two antiferromagnetic phases with transition temperatures at T_{N 1} = 36 K and T_{N 2} = 33 K. Neutron diffraction experiments revealed an antiferromagnetic structure with a propagation vector q = ( 0 0 frac(1, 2) ) for both of the phases, where the Np magnetic moments are oriented along the tetragonal c-axis for T_{N 2} < T < T_{N 1} (AF1), and parallel to the [1 1 0] direction on the basal plane for T < T_{N 2} (AF2). At T_{N 2}, the reorientation of magnetic moments is accompanied by a sudden increase of magnetic moments, indicative of the first order transition. The magnetic moment of Np is 0.96 ( 11 ) μ_B at T = 3 K and 0.44 ( 16 ) μ_B at T = 34 K. The magnetic form factor with | μ_L / μ_S | = 1.44 shows a dominant contribution of the orbital moment.

Original language	English
Pages (from-to)	1018-1020
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	378-380
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2006.01.503
Publication status	Published - May 1 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2006.01.503

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title = "Magnetic structure and successive phase transition in NpRhGa5",

abstract = "The magnetic structure of NpRhGa5 has been investigated by neutron scattering. NpRhGa5 exhibits two antiferromagnetic phases with transition temperatures at TN 1 = 36 K and TN 2 = 33 K. Neutron diffraction experiments revealed an antiferromagnetic structure with a propagation vector q = ( 0 0 frac(1, 2) ) for both of the phases, where the Np magnetic moments are oriented along the tetragonal c-axis for TN 2 < T < TN 1 (AF1), and parallel to the [1 1 0] direction on the basal plane for T < TN 2 (AF2). At TN 2, the reorientation of magnetic moments is accompanied by a sudden increase of magnetic moments, indicative of the first order transition. The magnetic moment of Np is 0.96 ( 11 ) μB at T = 3 K and 0.44 ( 16 ) μB at T = 34 K. The magnetic form factor with | μL / μS | = 1.44 shows a dominant contribution of the orbital moment.",

author = "Shintaro Jonen and Naoto Metoki and Fuminori Honda and Koji Kaneko and Dai Aoki and Yoshiya Homma and Etsuji Yamamoto and Yoshinori Haga and Yoshinobu Shiokawa and Yoshichika Onuki",

year = "2006",

month = may,

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doi = "10.1016/j.physb.2006.01.503",

language = "English",

volume = "378-380",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Magnetic structure and successive phase transition in NpRhGa5

AU - Jonen, Shintaro

AU - Metoki, Naoto

AU - Honda, Fuminori

AU - Kaneko, Koji

AU - Aoki, Dai

AU - Homma, Yoshiya

AU - Yamamoto, Etsuji

AU - Haga, Yoshinori

AU - Shiokawa, Yoshinobu

AU - Onuki, Yoshichika

PY - 2006/5/1

Y1 - 2006/5/1

N2 - The magnetic structure of NpRhGa5 has been investigated by neutron scattering. NpRhGa5 exhibits two antiferromagnetic phases with transition temperatures at TN 1 = 36 K and TN 2 = 33 K. Neutron diffraction experiments revealed an antiferromagnetic structure with a propagation vector q = ( 0 0 frac(1, 2) ) for both of the phases, where the Np magnetic moments are oriented along the tetragonal c-axis for TN 2 < T < TN 1 (AF1), and parallel to the [1 1 0] direction on the basal plane for T < TN 2 (AF2). At TN 2, the reorientation of magnetic moments is accompanied by a sudden increase of magnetic moments, indicative of the first order transition. The magnetic moment of Np is 0.96 ( 11 ) μB at T = 3 K and 0.44 ( 16 ) μB at T = 34 K. The magnetic form factor with | μL / μS | = 1.44 shows a dominant contribution of the orbital moment.

AB - The magnetic structure of NpRhGa5 has been investigated by neutron scattering. NpRhGa5 exhibits two antiferromagnetic phases with transition temperatures at TN 1 = 36 K and TN 2 = 33 K. Neutron diffraction experiments revealed an antiferromagnetic structure with a propagation vector q = ( 0 0 frac(1, 2) ) for both of the phases, where the Np magnetic moments are oriented along the tetragonal c-axis for TN 2 < T < TN 1 (AF1), and parallel to the [1 1 0] direction on the basal plane for T < TN 2 (AF2). At TN 2, the reorientation of magnetic moments is accompanied by a sudden increase of magnetic moments, indicative of the first order transition. The magnetic moment of Np is 0.96 ( 11 ) μB at T = 3 K and 0.44 ( 16 ) μB at T = 34 K. The magnetic form factor with | μL / μS | = 1.44 shows a dominant contribution of the orbital moment.

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U2 - 10.1016/j.physb.2006.01.503

DO - 10.1016/j.physb.2006.01.503

M3 - Article

AN - SCOPUS:33747684679

SN - 0921-4526

VL - 378-380

SP - 1018

EP - 1020

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - SPEC. ISS.

ER -

Magnetic structure and successive phase transition in NpRhGa₅

Abstract

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