This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
The ground state of a Kondo ion: V dissolved in the noble metal Au.
Abstract: The 'non-magnetic' ground state of a Kondo ion is generally believed to consist of the localised spin surrounded by a compensating cloud of conduction electrons coupled antiparallel. However, an alternative (less favoured) interpretation is that the coupling of the local moment to the conduction electrons induces directional (transverse) spin fluctuations which persist down to low temperatures, yielding a constant static susceptibility (hence 'non-magnetic' ?) as T -> 0 K. We propose to measure the magnetic spectral response from V ions alloyed in Au with the aim to elucidate the mechanism responsible for its ground state. Au-V is ideal for this study. Its physical properties have been thoroughly investigated by other techniques. Its Kondo temperature is moderately high, ~ 270 K. Also, V-V pairs and larger clusters are less magnetic, and thus well outside the energy range of interest
Public release date: 17 October 2020
Experimenter: Dr Amir Murani
DOI: 10.5286/ISIS.E.RB720080-1
ISIS Experiment Number: RB720080
Part Number: 1 - HET
Date of Experiment: 20 October 2007
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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[author], [date], [title], [publisher],
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Dr Amir Murani; (2007): The ground state of a Kondo ion: V dissolved in the noble metal Au. , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB720080-1
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