Magnetic Ordering in 3He Nano-Clusters |
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| Authors: | V A Shvarts K J Kless N Matsunaga E D Adams J S Xia E A Schuberth |
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| Affiliation: | (1) Present address: Department of Physics, University of Florida, Gainesville, FL 32611-8440, USA;(2) NHMFL, Department of Physics, University of Florida, USA;(3) Walther-Meissner Institut, D-85748 Garching, Germany |
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| Abstract: | Simultaneous measurements of magnetic susceptibility from 0.5 to 10 mK and pressure from 2.88 to 3.54 MPa have been made in
3
He nano-clusters embedded in a
4
He matrix, following phase separation. The susceptibility of the 3.54 MPa, all-solid sample behaves similarly to that of bulk
3
He for v=21.3 cm
3
/mole, with a Weiss constant  =–250 K. For the 2.88 MPa, liquid-droplet sample, =140K, indicating a ferromagnetic tendency, similar to 2-D films at some coverages. At intermediate pressures,  has a peak near 1.05 mK, but without a discontinuity. For all samples, had a solid-like contribution to the lowest temperatures. Magnetic ordering in nano-clusters appears to be different than the U2D2 phase of bulk
3
He. |
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| Keywords: | |
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