Quantum Interference in Disordered Ferromagnet U₂NiSi₃

• Authors: D. Gnida , M. Szlawska , P. Wiśniewski , D. Kaczorowski
• Languages of publication: EN

Abstracts

EN

A single-crystalline sample of disordered ferromagnetic U₂NiSi₃ was investigated by means of electrical resistivity measurements under ambient and high hydrostatic pressure. Temperature dependences of the electrical resistivity clearly reveal interplay of the ferromagnetic ordering and quantum interference effects resulting from crystallographic disorder. Electron-electron interaction manifests itself as a T^{0.5} increase in the in-plane and out-of-plane electrical resistivity below 5 K. Weak localization is observed solely in the ab-plane as a linear-in-T contribution to resistivity, which suggests that internal magnetic field does not break the interference of scattered electron waves in ab-plane. Applied hydrostatic pressure does not affect the T^{0.5} electron-electron interaction contribution, however it diminishes the impact of weak localization on the ab-plane resistivity.

Keywords

EN

72.15.-v; 75.50.Lk; 72.15.Rn

Discipline

• 72.15.-v: Electronic conduction in metals and alloys
• 72.15.Rn: Localization effects (Anderson or weak localization)
• 75.50.Lk: Spin glasses and other random magnets

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 451-453

Dates

published

2015-02

Contributors

author

D. Gnida

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

M. Szlawska

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

P. Wiśniewski

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

D. Kaczorowski

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.451