The properties of thin ³He-⁴He superfluid films
Thin ³He-⁴He physisorbed films are examples of strongly interacting, quasi two-dimensional, fermion-boson mixture systems. The properties of the mixture systems can be tuned by changing the substrate or the ⁴He film thickness. In this paper, we discuss the ground-state and magnetic groundstate o...
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| Datum: | 2001 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики конденсованих систем НАН України
2001
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| Schriftenreihe: | Condensed Matter Physics |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/120440 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The properties of thin ³He-⁴He superfluid films / R.H. Anderson, M.D. Miller // Condensed Matter Physics. — 2001. — Т. 4, № 2(26). — С. 335-348. — Бібліогр.: 22 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Thin ³He-⁴He physisorbed films are examples of strongly interacting, quasi
two-dimensional, fermion-boson mixture systems. The properties of the
mixture systems can be tuned by changing the substrate or the ⁴He film
thickness. In this paper, we discuss the ground-state and magnetic groundstate
of the ³He subsystem and also the interactions between the excitations
of the ⁴He superfluid film with the single-particle excitations of the adsorbed
³He. The ground-state of the ³He system is calculated using a model
for the ³He-³He effective interaction in the static ⁴He film which explicitly
includes the effective interaction due to exchange of virtual film excitations
(ripplons). This latter effective interaction is evaluated in the random phase
approximation and is shown not to be capable of causing the ³He system
to be self-bound. We discuss the evidence from magnetization, third sound
and heat capacity measurements that the ³He first transverse excited state
is being occupied prior to monolayer completion |
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