Abstract
The electrical resistivity of the dilute spin glass alloys Ag(1,540 ppm Mn) and Ag(1,015 ppm Mn) has been measured from 1.3–30 K at pressures up to 70 kbars. The temperature of the resistance maximum,T m , is found to shift to higher temperatures, this shift being stronger for the more concentrated alloys.
Additionally an Ag(20 ppm Mn) Kondo-alloy has been investigated. Application of pressure causes an increase of the Kondo temperatureT K from which the volume dependence of the effective exchange constantJ is derived.
With this information theT m -shift in the spin glass alloys can be understood in a qualitative and quantitative manner within Larsen's model.
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Olijnyk, H., Crone, J. & Lüscher, E. Pressure dependence of the electrical resistivity of Ag(Mn), both in the dilute limit and in the spin glass regime. Z. Physik B - Condensed Matter 43, 299–303 (1981). https://doi.org/10.1007/BF01292796
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DOI: https://doi.org/10.1007/BF01292796