Successive Magnetic Orderings of Rectangular Components Caused by Conservation of Paraquadrupolar State in Magnetically Ordered Phase in TbCoGa<SUB>5</SUB>
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- Sanada Naoyuki
- Department of Advanced Materials Chemistry, Yokohama National University
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- Watanuki Ryuta
- Department of Advanced Materials Chemistry, Yokohama National University
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- Suzuki Kazuya
- Department of Advanced Materials Chemistry, Yokohama National University
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- Akatsu Mitsuhiro
- Graduate School of Science and Technology, Niigata University
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- Sakakibara Toshiro
- The Institute for Solid State Physics, the University of Tokyo
Bibliographic Information
- Other Title
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- Successive magnetic orderings of rectangular components caused by conservation of paraquadrupolar state in magnetically ordered phase in TbCoGa5
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Abstract
We grew single crystals of TbCoGa5 and measured their magnetic susceptibility, specific heat, and elastic constants. The result of the magnetic susceptibility measurement suggests that the c- and ab-components of the magnetic moments of Tb3+ ions order independently at TN1=36.2 K and TN2=5.4 K, respectively. The magnetic entropy change indicates that the degeneracy of internal degrees of freedom is not fully lifted in the intermediate phase. In addition, the degeneracy of electric-quadrupolar (orbital) degrees of freedom exists in spite of the formation of magnetic order because the elastic constants show softening in the intermediate phase. It is considered that the magnetic ordering of the ab-component is suppressed by the existence of the degeneracy of quadrupolar degrees of freedom in TbCoGa5.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 78 (7), 073709-073709, 2009
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679173327744
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- NII Article ID
- 130005437471
- 10025962012
- 210000107863
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- NII Book ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 10280446
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed