Experimental apparatus for heat capacity measurements of 2D 3He in magnetic fields

Previous heat capacity measurement in zero magnetic field for the low-density second-layer solid 3He adsorbed on graphite showed a peculiar double peak structure. From this measurement a 'quantum spin liquid (QSL)' ground state has been suggested. Increasing the magnetic field, theories pr...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2003-05, Vol.329-333, p.146-147
Main Authors: Matsumoto, Y, Murakawa, S, Honkura, K, Bauerle, C, Kambara, H, Fukuyama, H
Format: Article
Language:English
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Summary:Previous heat capacity measurement in zero magnetic field for the low-density second-layer solid 3He adsorbed on graphite showed a peculiar double peak structure. From this measurement a 'quantum spin liquid (QSL)' ground state has been suggested. Increasing the magnetic field, theories predict a transition from a QSL phase to a long-range ordered phase called 'uuud' at a certain threshold field, which is a measure of the spin gap of the QSL phase. Here we describe an experimental setup for heat capacity measurements of 2D 3He to test the predictions at temperatures below 200 *mK in magnetic fields up to 1.2 T.
ISSN:0921-4526