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تسجيل مستخدم جديدAnomalous c-axis Transport Response of UTe$_{2}$
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We study the temperature dependence of electrical resistivity for currents directed along all crystallographic axes of the spin-triplet superconductor UTe$_{2}$. We focus particularly on an accurate determination of the resistivity along the $c$-axis ($rho_c$) by using transport geometries that allow extraction of two resistivities along with the primary axes directions. Measurement of the absolute values of resistivities in all current directions reveals a surprisingly (given the anticipated highly anisotropic bandstructure) nearly isotropic transport behavior at temperatures above Kondo coherence, with $rho_c sim rho_b sim 2rho_a$, but with a qualitatively distinct behavior at lower temperatures. The temperature dependence of $rho_c$ exhibits a Kondo-like maximum at much lower temperatures compared to that of $rho_a$ and $rho_b$, providing important insight into the underlying electronic structure necessary for building a microscopic model of UTe$_{2}$.
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