The order parameter critical exponent of the chiral phase transition in VF2

The chiral order parameter exponent beta=0.175+/-0.015 has been measured in d=3 insulating helimagnet VF2 using neutron scattering. As predicted, this value is much smaller than the d=3 X-Y model exponent beta=0.35.

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.1410-1412
Hauptverfasser:	YE, F, RODRIGUEZ, Y. W, BELANGER, D. P, FERNANDEZ-BACA, J. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Critical-point effects, specific heats, short-range order Exact sciences and technology Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Physics Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The chiral order parameter exponent beta=0.175+/-0.015 has been measured in d=3 insulating helimagnet VF2 using neutron scattering. As predicted, this value is much smaller than the d=3 X-Y model exponent beta=0.35.
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2006.10.424