Theory of coupled multipole moments probed by X-ray scattering in CeB 6

Hiroshi N. Kono; Katsunori Kubo; Yoshio Kuramoto

doi:10.1143/JPSJ.73.2948

Theory of coupled multipole moments probed by X-ray scattering in CeB ₆

Hiroshi N. Kono, Katsunori Kubo, Yoshio Kuramoto

SCI - Physics

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

10 Citations (Scopus)

Abstract

A minimal model for multipole orders in CeB₆ shows that the degeneracy of the quadrupole order parameters and strong spin-orbit coupling lead to peculiar temperature and magnetic-field dependences of the X-ray reflection intensity at superlattice Bragg points. Furthermore, the intensity depends sensitively on the surface direction. These theoretical results explain recent X-ray experiments in phases II and III of CeB₆. It is predicted that under weak magnetic fields perpendicular to the (111) surface, reflection intensity should change nonmonotonically as a function of temperature.

Original language	English
Pages (from-to)	2948-2951
Number of pages	4
Journal	journal of the physical society of japan
Volume	73
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.73.2948
Publication status	Published - 2004 Nov

Keywords

CeB
Multipole order
Quadrupole order
X-ray scattering

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.73.2948

Cite this

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title = "Theory of coupled multipole moments probed by X-ray scattering in CeB 6",

abstract = "A minimal model for multipole orders in CeB6 shows that the degeneracy of the quadrupole order parameters and strong spin-orbit coupling lead to peculiar temperature and magnetic-field dependences of the X-ray reflection intensity at superlattice Bragg points. Furthermore, the intensity depends sensitively on the surface direction. These theoretical results explain recent X-ray experiments in phases II and III of CeB6. It is predicted that under weak magnetic fields perpendicular to the (111) surface, reflection intensity should change nonmonotonically as a function of temperature.",

keywords = "CeB, Multipole order, Quadrupole order, X-ray scattering",

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AU - Kono, Hiroshi N.

AU - Kubo, Katsunori

AU - Kuramoto, Yoshio

PY - 2004/11

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N2 - A minimal model for multipole orders in CeB6 shows that the degeneracy of the quadrupole order parameters and strong spin-orbit coupling lead to peculiar temperature and magnetic-field dependences of the X-ray reflection intensity at superlattice Bragg points. Furthermore, the intensity depends sensitively on the surface direction. These theoretical results explain recent X-ray experiments in phases II and III of CeB6. It is predicted that under weak magnetic fields perpendicular to the (111) surface, reflection intensity should change nonmonotonically as a function of temperature.

AB - A minimal model for multipole orders in CeB6 shows that the degeneracy of the quadrupole order parameters and strong spin-orbit coupling lead to peculiar temperature and magnetic-field dependences of the X-ray reflection intensity at superlattice Bragg points. Furthermore, the intensity depends sensitively on the surface direction. These theoretical results explain recent X-ray experiments in phases II and III of CeB6. It is predicted that under weak magnetic fields perpendicular to the (111) surface, reflection intensity should change nonmonotonically as a function of temperature.

KW - CeB

KW - Multipole order

KW - Quadrupole order

KW - X-ray scattering

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