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High resolution study of magnetic ordering at absolute zero

Lee, M; Husmann, A; Rosenbaum, TF; Aeppli, G; (2004) High resolution study of magnetic ordering at absolute zero. PHYS REV LETT , 92 (18) , Article 187201. 10.1103/PhysRevLett.92.187201. Green open access

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Abstract

High resolution pressure measurements in the zero-temperature limit provide a unique opportunity to study the behavior of strongly interacting, itinerant electrons with coupled spin and charge degrees of freedom. Approaching the precision that has become the hallmark of experiments on classical critical phenomena, we characterize the quantum critical behavior of the model, elemental antiferromagnet chromium, lightly doped with vanadium. We resolve the sharp doubling of the Hall coefficient at the quantum critical point and trace the dominating effects of quantum fluctuations up to surprisingly high temperatures.

Type: Article
Title: High resolution study of magnetic ordering at absolute zero
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.92.187201
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.92.187201
Language: English
Additional information: The American Physical Society
Keywords: TERNARY DILUTE ALLOYS, FERMI-LIQUID BEHAVIOR, CHROMIUM-ALLOYS, ITINERANT ANTIFERROMAGNETISM, ELECTRICAL-RESISTIVITY, TRANSPORT PROPERTIES, QUANTUM CRITICALITY, TEMPERATURE, CR, DEPENDENCE
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
URI: http://discovery.ucl.ac.uk/id/eprint/129028
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