Yusuf, S. M. ; Mukadam, M. D. ; Raj, P. ; Sathyamoorthy, A. ; Malik, S. K. (2005) Metamagnetic-like transition in U0.5Th0.5Cu2Ge2 Physica B: Condensed Matter, 359 . pp. 1009-1011. ISSN 0921-4526
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.physb.2005.01.380
Abstract
The effect of substituting U with Th in a widely reported intermetallic compound UCu2Ge2 has been investigated by carrying out DC magnetization and magnetoresistance measurements. The U0.5Th0.5Cu2Ge2 polycrystalline sample shows a paramagnetic to an antiferromagnetic-like transition at 57 K. Below 57 K, a first-order metamagnetic phase transition has been observed (e.g. at 5 K under 33 kOe field) with a clear hysteresis in the DC magnetization and magnetoresistance measurements. The hysteretic field region expands with a decrease of temperature. At lower temperatures, the field-induced ferromagnetic state gets arrested and shows normal ferromagnetism with large remanent magnetization and coercive field. Evidence of arresting of ferromagnetic phase has been also found in our magnetoresistance study. A large value of magnetoresistance (24%) has been observed at 5 K under an applied field of 70 kOe.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | First-order Transition; Metamagnetism |
| ID Code: | 112370 |
| Deposited On: | 01 Dec 2017 12:05 |
| Last Modified: | 01 Dec 2017 12:05 |
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