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Quantum Critical Behavior in a Concentrated Ternary Solid Solution
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DOI：10.1038/srep26179.png)
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摘要
En 中文
The face centered cubic (fcc) alloy NiCoCrx with x approximate to 1 is found to be close to the Cr concentration where the ferromagnetic transition temperature, T-c, goes to 0. Near this composition these alloys exhibit a resistivity linear in temperature to 2 K, a linear magnetoresistance, an excess - TlnT (or power law) contribution to the low temperature heat capacity, and excess low temperature entropy. All of the low temperature electrical, magnetic and thermodynamic properties of the alloys with compositions near x approximate to 1 are not typical of a Fermi liquid and suggest strong magnetic fluctuations associated with a quantum critical region. The limit of extreme chemical disorder in this simple fcc material thus provides a novel and unique platform to study quantum critical behavior in a highly tunable system.
Keyword:
FERMI-LIQUID BEHAVIOR
MAGNETIC-PROPERTIES
CRITICAL-POINT
DISORDER
ALLOYS
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期刊
IF:
3.9
论文数:
28.0W
被引数:
83.5W
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