Robinson, Lawrence Baylor ; Milstein, Frederick ; Jayaraman, A. (1964) Effect of pressure on the curie temperature of rare-earth metals. I. Gadolinium Physical Review, 134 (1A). A187-A192. ISSN 0031-899X
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Official URL: http://prola.aps.org/abstract/PR/v134/i1A/pA187_1
Related URL: http://dx.doi.org/10.1103/PhysRev.134.A187
Abstract
An experimental investigation has been undertaken for the purpose of learning the effect of interatomic distance on the magnetic exchange interaction in ferromagnetic rare-earth metals. The first material which has been studied is gadolinium. The equipment used was the high-pressure apparatus of Professor G. C. Kennedy of the Institute of Geophysics (UCLA). A toroidal-shaped specimen of gadolinium was subjected to pressures up to about 40 kilobars (kbar). The gadolinium toroid served as a transformer core. A constant input voltage was applied and the output voltage was studied as a function of pressure and temperature. The Curie temperature, obtained from the output voltage, was found to be depressed linearly with pressure at a rate of -1.60°C/(kbar) up to 21.5 kbar. Between 21.5 and 26.7 kbar a phase transition to a nonferromagnetic state occurred.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 13236 |
Deposited On: | 11 Nov 2010 06:55 |
Last Modified: | 06 Jun 2011 05:51 |
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