Theory of successive magnetic transitions with tilting of moments - Application to NpFeGa5

Annamária Kiss; Yoshio Kuramoto

doi:10.1143/JPSJ.77.124708

Theory of successive magnetic transitions with tilting of moments - Application to NpFeGa₅

Annamária Kiss, Yoshio Kuramoto

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

5 Citations (Scopus)

Abstract

Mechanism of successive magnetic transitions in NpFeGa₅ is studied theoretically with use of an extended CEF model assuming Fe moments as the source of anisotropy. All possible dipolar and quadrupolar interactions are taken into account, which are allowed by the doublet-singlet subspace. Phase diagrams are obtained which give either two or three successive transitions from the paramagnetic phase. In the latter case, Np moments first order along [110], then tilt around the c axis, and finally tilt out of the ab-plane. The ensuing splitting pattern of ^69,71Ga nuclear magnetic resonance (NMR) is analyzed theoretically, and compared with experimental results.

Original language	English
Article number	124708
Journal	journal of the physical society of japan
Volume	77
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.77.124708
Publication status	Published - 2008 Dec
Externally published	Yes

Keywords

Actinide
Dipole order
NMR
Np
Quadrupole interaction

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.77.124708

Cite this

@article{a6374f9a2bf0484b8be5ff0acd542871,

title = "Theory of successive magnetic transitions with tilting of moments - Application to NpFeGa5",

abstract = "Mechanism of successive magnetic transitions in NpFeGa5 is studied theoretically with use of an extended CEF model assuming Fe moments as the source of anisotropy. All possible dipolar and quadrupolar interactions are taken into account, which are allowed by the doublet-singlet subspace. Phase diagrams are obtained which give either two or three successive transitions from the paramagnetic phase. In the latter case, Np moments first order along [110], then tilt around the c axis, and finally tilt out of the ab-plane. The ensuing splitting pattern of 69,71Ga nuclear magnetic resonance (NMR) is analyzed theoretically, and compared with experimental results.",

keywords = "Actinide, Dipole order, NMR, Np, Quadrupole interaction",

author = "Annam{\'a}ria Kiss and Yoshio Kuramoto",

year = "2008",

month = dec,

doi = "10.1143/JPSJ.77.124708",

language = "English",

volume = "77",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "12",

}

TY - JOUR

T1 - Theory of successive magnetic transitions with tilting of moments - Application to NpFeGa5

AU - Kiss, Annamária

AU - Kuramoto, Yoshio

PY - 2008/12

Y1 - 2008/12

N2 - Mechanism of successive magnetic transitions in NpFeGa5 is studied theoretically with use of an extended CEF model assuming Fe moments as the source of anisotropy. All possible dipolar and quadrupolar interactions are taken into account, which are allowed by the doublet-singlet subspace. Phase diagrams are obtained which give either two or three successive transitions from the paramagnetic phase. In the latter case, Np moments first order along [110], then tilt around the c axis, and finally tilt out of the ab-plane. The ensuing splitting pattern of 69,71Ga nuclear magnetic resonance (NMR) is analyzed theoretically, and compared with experimental results.

AB - Mechanism of successive magnetic transitions in NpFeGa5 is studied theoretically with use of an extended CEF model assuming Fe moments as the source of anisotropy. All possible dipolar and quadrupolar interactions are taken into account, which are allowed by the doublet-singlet subspace. Phase diagrams are obtained which give either two or three successive transitions from the paramagnetic phase. In the latter case, Np moments first order along [110], then tilt around the c axis, and finally tilt out of the ab-plane. The ensuing splitting pattern of 69,71Ga nuclear magnetic resonance (NMR) is analyzed theoretically, and compared with experimental results.

KW - Actinide

KW - Dipole order

KW - NMR

KW - Np

KW - Quadrupole interaction

UR - http://www.scopus.com/inward/record.url?scp=57549101064&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57549101064&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.77.124708

DO - 10.1143/JPSJ.77.124708

M3 - Article

AN - SCOPUS:57549101064

SN - 0031-9015

VL - 77

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 12

M1 - 124708

ER -