New first-order phase transition in high-purity ytterbium metal

Bucher, E. ; Schmidt, P. H. ; Jayaraman, A. ; Andres, K. ; Maita, J. P. ; Nassau, K. ; Dernier, P. D. (1970) New first-order phase transition in high-purity ytterbium metal Physical Review B, 2 (10). pp. 3911-3917. ISSN 0163-1829

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A first-order magnetic phase transition has been observed in high-purity Yb metal. It is characterized by a paramagnetic-to-diamagnetic transition with a large degree of hysteresis between 100 and 360 °K, and appears to be associated with an fcc-hcp martensitic transformation. The occurrence of this transition is characteristic of high-purity metal and has not been previously reported. Several other properties such as the specific heat at 0 and 106 kOe, the volume and resistance changes the low-temperature resistivity, x-ray data, and the pressure and strain dependence of the transition are discussed. The diamagnetic phase is not superconducting above 0.015 °K. The fcc phase was obtained from the hcp phase by applying strain at room temperature and was also investigated. It shows a strongly temperature-dependent paramagnetic susceptibility down to 1.4 °K, but no magnetic ordering could be detected down to 1.0 °K.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:13339
Deposited On:11 Nov 2010 08:05
Last Modified:06 Jun 2011 05:41

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