Experimental apparatus for heat capacity measurements of 2D [formula omitted] in magnetic fields

Previous heat capacity measurement in zero magnetic field for the low-density second-layer solid 3 He 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 t...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2003-05, Vol.329, p.146-147
Main Authors: Matsumoto, Y., Murakawa, S., Honkura, K., Bäuerle, C., Kambara, H., Fukuyama, Hiroshi
Format: Article
Language:English
Subjects:
Nuclear magnetism
Solid [formula omitted]
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Summary:Previous heat capacity measurement in zero magnetic field for the low-density second-layer solid 3 He 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 3 He to test the predictions at temperatures below 200 μK in magnetic fields up to 1.2 T .
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(02)01942-7