Field-Induced Partially Disordered State in Yb sub( 2)Pt sub( 2)Pb

Field-Induced Partially Disordered State in Yb sub( 2)Pt sub( 2)Pb

The physical properties of Yb2Pt2Pb, which has been considered to be a geometrically frustrated antiferromagnet with the Shastry-Sutherland lattice, are investigated by magnetization and specific heat measurements under magnetic fields. Unconventional H - T phase diagrams, which markedly vary accord...

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Veröffentlicht in:Journal of the Physical Society of Japan 2011-12, Vol.80 (12), p.1-1
Hauptverfasser: Ochiai, Akira, Matsuda, Saori, Ikeda, Yusuke, Shimizu, Yasunobu, Toyoshima, Shigenori, Aoki, Haruyoshi, Katoh, Kenichi
Format: Artikel
Sprache:eng
Schlagworte:
Antiferromagnetism
Crystal structure
Lattices
Magnetic fields
Magnetization
Phase diagrams
Physical properties
Specific heat
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Zusammenfassung:The physical properties of Yb2Pt2Pb, which has been considered to be a geometrically frustrated antiferromagnet with the Shastry-Sutherland lattice, are investigated by magnetization and specific heat measurements under magnetic fields. Unconventional H - T phase diagrams, which markedly vary according to the direction of the applied magnetic field, are presented. When the magnetic field is applied along the [110] direction, a partially disordered state appears. Such unconventional H - T phases of Yb2Pt2Pb are deduced to be ascribed to the Ising-like nature of the ground-state Kramers doublet and the characteristic crystal structure.
ISSN:0031-9015
1347-4073