Magnetic Field-Temperature Phase Diagram of the Ferro-quadrupolar State and Crystal Electric Field Effect in UCu^sub 2^Sn

Magnetic Field-Temperature Phase Diagram of the Ferro-quadrupolar State and Crystal Electric Field Effect in UCu^sub 2^Sn

The ternary uranium compound UCu ... Sn shows a ferro-quadrupolar transition at T ... = 16 K originating from the ordering of the non-Kramers doublet ... ... ground state. To investigate the magnetic field-temperature phase diagram of the ferro-quadrupolar state in UCu ... Sn, we measured elastic mo...

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Veröffentlicht in:Journal of the Physical Society of Japan 2012-02, Vol.81 (2), p.1
Hauptverfasser: Ishii, Isao, Katoh, Kenichi, Takabatake, Toshiro, Hashio, Susumu, Tamaki, Akira, Suzuki, Takashi
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Electromagnetism
Phase transitions
Temperature effects
Uranium
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Zusammenfassung:The ternary uranium compound UCu ... Sn shows a ferro-quadrupolar transition at T ... = 16 K originating from the ordering of the non-Kramers doublet ... ... ground state. To investigate the magnetic field-temperature phase diagram of the ferro-quadrupolar state in UCu ... Sn, we measured elastic modulus C ... at magnetic fields of up to 14 T. We found an anisotropic field dependence of T ... ( H ) in H ...[\bar12\bar10], [0001], and [01\bar10]. We optimized the crystal electric field level scheme using C ... under fields, magnetic susceptibility, and electronic entropy. The quadrupolar phase diagram is well reproduced by the obtained level scheme. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073