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The spin-glass state of Y1-xUxPd3

delaTorre, MAL; Fernandez, JR; McEwen, KA; (1996) The spin-glass state of Y1-xUxPd3. In: JOURNAL OF APPLIED PHYSICS. (pp. 6364 - 6366). AMER INST PHYSICS

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We have performed a detailed study of the magnetization of Y0.6U0.4Pd3 (T-f similar to 10 K), which shows thermal, transport, and magnetic properties typical of a spin-glass system. Strong irreversibility is observed among our zero-field-cooled and field-cooled measurements in fields as large as 30 kOe. Thus, the freezing temperature displays an unusual weak dependence with field. We observe a very slow temporal dependence of the magnetization below the freezing temperature. The nonlinear susceptibility coefficients extracted from our data show an increase by a factor of approximately 20 when approaching the freezing temperature from above, but do not show a true divergence at T-f, and a scaling analysis does not seem to be possible. We compare these results with those expected for classical spin glasses, and propose a possible mechanism for the onset of frustration below x=0.45 in Y1-xUxPd3. (C) 1996 American Institute of Physics.

Type: Proceedings paper
Title: The spin-glass state of Y1-xUxPd3
Event: 40th Annual Conference on Magnetism and Magnetic Materials
Dates: 1995-11-06 - 1995-11-09
URI: http://discovery.ucl.ac.uk/id/eprint/1309932
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