Thompson, J. D. ; Willis, J. O. ; Godart, C. ; MacLaughlin, D. E. ; Gupta, L. C. (1985) Heavy fermion state and pressure-induced resistive behaviour in CeRu2Si2 Solid State Communications, 56 (2). pp. 169-172. ISSN 0038-1098
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...
Related URL: http://dx.doi.org/10.1016/0038-1098(85)90733-1
Abstract
Pressure-induced variation in the resistive behaviour of CeRu2Si2, a Kondo-lattice system, has been studied in the temperature interval 1.5K - 300K. At low temperatures, resistivity exhibits (i) a linear temperature dependence at low applied pressures (P ≤ 2.26 kbar) and (ii) a quadratic temperature dependence ζ (T) ~AT2 at higher pressures (6.5 kbar ≤ P ≤ 16.8 kbar). The coefficient A decrease, which in turn implies that the spin fluctuation temperature Tsf increases, with increasing applied pressure. The temperature coefficient γ of specific heat C=γ T at low temperature (0.3K ≤ T ≤ 1.6K) is quite large (385 mJ/mole-K2) confirming the heavy fermi liquid nature of the material.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 11284 |
| Deposited On: | 09 Nov 2010 03:39 |
| Last Modified: | 02 Jun 2011 06:24 |
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