Effect of High Pressure on Antiferromagnetism in Cr Alloys

Jayaraman, A. ; Rice, T. M. ; Bucher, E (1970) Effect of High Pressure on Antiferromagnetism in Cr Alloys Journal of Applied Physics, 41 (3). 869_1-869_2. ISSN 0021-8979

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Official URL: http://jap.aip.org/resource/1/japiau/v41/i3/p869_s...

Related URL: http://dx.doi.org/10.1063/1.1658990


The pressure dependence of antiferromagnetic ordering in Cr☒Ru, Cr☒Mn, and Cr☒Re alloys has been investigated. At low concentrations, TN drops very rapidly and nonlinearly with pressure up to some point and then exhibits a much slower variation with a distinct break in slope. We attribute this break in slope to a transition from communsurate phase (C) at lower pressures to an incommensurate phase (I) at higher pressures. If we extrapolate the paramagnetic (P) to incommensurate boundary back to 1 atm we obtain values for the Néel temperature (TNI) for P ‐ I transition, if the P ‐ C transition had not occurred first. TNI when plotted against e∕a shows a sharp break at pure Cr, in accord with theoretical predictions based on the ``depairing'' effects of impurity scattering.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
ID Code:96136
Deposited On:05 Dec 2012 07:05
Last Modified:05 Dec 2012 07:05

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