Magnetic phase diagrams of the multicritical olivine Mn2 SiS4 and Mn2 GeS4

Jaiho Chung, K. Ohgushi, Y. Ueda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Using single crystal neutron diffraction, we studied the H (∥ b) - T phase diagram of the antiferromagnetic olivine Mn2 AS4 (A = Si, Ge). We identified the two spin-flop phases at high fields that are separated by field-independent phase boundaries terminated at multicritical points. In the low temperature phase, the magnetic structures consist of antiferromagnetic Cz - Cz and ferromagnetic Fx components. In the high temperature phase, in contrast, they are replaced by Cx - Cx and Fz . The absence of the anomalies in the DC magnetization data across the spin-reorientation transitions is discussed in terms of the Clausius-Clapeyron relation.

Original languageEnglish
Pages (from-to)832-837
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume322
Issue number7
DOIs
Publication statusPublished - 2010 Apr 1

Fingerprint

Olivine
olivine
Phase diagrams
phase diagrams
Magnetic structure
Phase boundaries
Neutron diffraction
retraining
neutron diffraction
Magnetization
direct current
Single crystals
anomalies
Temperature
magnetization
single crystals

Keywords

  • Magnetic phase diagram
  • Multicriticality
  • Neutron scattering

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Magnetic phase diagrams of the multicritical olivine Mn2 SiS4 and Mn2 GeS4 . / Chung, Jaiho; Ohgushi, K.; Ueda, Y.

In: Journal of Magnetism and Magnetic Materials, Vol. 322, No. 7, 01.04.2010, p. 832-837.

Research output: Contribution to journalArticle

@article{3f1567453ea84954aee20154d36cff81,
title = "Magnetic phase diagrams of the multicritical olivine Mn2 SiS4 and Mn2 GeS4",
abstract = "Using single crystal neutron diffraction, we studied the H (∥ b) - T phase diagram of the antiferromagnetic olivine Mn2 AS4 (A = Si, Ge). We identified the two spin-flop phases at high fields that are separated by field-independent phase boundaries terminated at multicritical points. In the low temperature phase, the magnetic structures consist of antiferromagnetic Cz - Cz ′ and ferromagnetic Fx ′ components. In the high temperature phase, in contrast, they are replaced by Cx - Cx ′ and Fz ′. The absence of the anomalies in the DC magnetization data across the spin-reorientation transitions is discussed in terms of the Clausius-Clapeyron relation.",
keywords = "Magnetic phase diagram, Multicriticality, Neutron scattering",
author = "Jaiho Chung and K. Ohgushi and Y. Ueda",
year = "2010",
month = "4",
day = "1",
doi = "10.1016/j.jmmm.2009.11.013",
language = "English",
volume = "322",
pages = "832--837",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "7",

}

TY - JOUR

T1 - Magnetic phase diagrams of the multicritical olivine Mn2 SiS4 and Mn2 GeS4

AU - Chung, Jaiho

AU - Ohgushi, K.

AU - Ueda, Y.

PY - 2010/4/1

Y1 - 2010/4/1

N2 - Using single crystal neutron diffraction, we studied the H (∥ b) - T phase diagram of the antiferromagnetic olivine Mn2 AS4 (A = Si, Ge). We identified the two spin-flop phases at high fields that are separated by field-independent phase boundaries terminated at multicritical points. In the low temperature phase, the magnetic structures consist of antiferromagnetic Cz - Cz ′ and ferromagnetic Fx ′ components. In the high temperature phase, in contrast, they are replaced by Cx - Cx ′ and Fz ′. The absence of the anomalies in the DC magnetization data across the spin-reorientation transitions is discussed in terms of the Clausius-Clapeyron relation.

AB - Using single crystal neutron diffraction, we studied the H (∥ b) - T phase diagram of the antiferromagnetic olivine Mn2 AS4 (A = Si, Ge). We identified the two spin-flop phases at high fields that are separated by field-independent phase boundaries terminated at multicritical points. In the low temperature phase, the magnetic structures consist of antiferromagnetic Cz - Cz ′ and ferromagnetic Fx ′ components. In the high temperature phase, in contrast, they are replaced by Cx - Cx ′ and Fz ′. The absence of the anomalies in the DC magnetization data across the spin-reorientation transitions is discussed in terms of the Clausius-Clapeyron relation.

KW - Magnetic phase diagram

KW - Multicriticality

KW - Neutron scattering

UR - http://www.scopus.com/inward/record.url?scp=73649083388&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=73649083388&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2009.11.013

DO - 10.1016/j.jmmm.2009.11.013

M3 - Article

AN - SCOPUS:73649083388

VL - 322

SP - 832

EP - 837

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 7

ER -