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Resistivity Minima and Electron-Electron Interaction in Crystalline Alloys of Transition Metals $[Fe_xNi_{80-x}Cr_{20}, 63 \geq x \geq 50]$

Banerjee, S and Raychaudhuri, AK (1992) Resistivity Minima and Electron-Electron Interaction in Crystalline Alloys of Transition Metals $[Fe_xNi_{80-x}Cr_{20}, 63 \geq x \geq 50]$. In: Solid State Communications, 83 (12). pp. 1047-1051.

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Abstract

We report the low temperature resistivity [\rho(T)] measurement of the \gamma-phase crystalline alloys $Fe_xNi_{80-x}Cr_{20} (63 \geq x \geq 50)$ in the temperature range 0.4 K-20 K. We observe of resistivity minima occurring in the temperature range $T_{min}$ = 6-11 K. Below the minima $(T < T_{min}/2)$, the rise in $\rho$(T) follows a \sqrt{T} law indicating electron-electron interactions as the origin of this rise. In this alloy system by varying x one can go from a long range ordered antiferrogmagnetic to a ferromagnetic phase passing through spin glass and reenterant spin glass phases. We find that the \sqrt{T} temperature dependence of $\rho$(T) for $T < T_{min}$ is preserved irrespective of the type of magnetic order.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science Ltd.
Keywords: electron-electron interaction;crystalline alloys;transition metals
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 10 Dec 2007
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ernet.in/id/eprint/12763

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