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 language | English |
|---|---|
| Pages (from-to) | 832-837 |
| Number of pages | 6 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 322 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2010 Apr 1 |
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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 journal › Article
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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 -