Takeuchi, T. ; Yamada, T. ; Miyako, Y. ; Oda, K. ; Kindo, K. ; Becker, B. ; Ramakrishnan, S. ; Menovsky, A. A. ; Nieuwenhuys, G. J. ; Mydosh, J. A. (1997) Coupled spin-lattice transition in U2Rh3Si5: thermal expansions and magnetization Physical Review B: Condensed Matter and Materials Physics, 56 (17). pp. 10778-10781. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v56/i17/p10778_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.56.10778
Abstract
We have measured the thermal expansion, Δli/li, and high-field magnetization, Mi, along the three quasiorthorhombic axes of U2Rh3Si5. There are discontinuities in Δli(T)/lli at T0=25.7 K of opposite sign in the a' and b directions while the c axis changes steplike, which tracks a large volume change. The magnetization along the b axis, Mb(H), exhibits a dramatic temperature-dependent metamagnetic transition where the induced U moments switch from 0.1 to 1.7µB, while the a' and c axes remain unperturbed. We relate these anomalies to a first-order phase transition of strongly coupled spin and quadrupole orderings.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 40856 |
| Deposited On: | 25 May 2011 11:41 |
| Last Modified: | 25 May 2011 11:41 |
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