Observation of higher order facets on He-3 crystals.

Tsepelin, Viktor and Alles, Harry and Babkin, A. and Harme, J. P. H. and Jochemsen, Reyer and Parshin, Alexander Y. and Tvalashvili, G. (2001) Observation of higher order facets on He-3 crystals. Physical review letters, 86 (6). pp. 1042-1045. ISSN 1079-7114

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Faceting has been observed on He-3 crystals investigated with a low-temperature Fabry-Perot interferometer. Nine types of facets were clearly identified during growth of a bec-He-3 single crystal at a temperature of 0.55 mK, while previously only three types of facets have been seen. Because of the weak coupling between the liquid-solid interface and the solid lattice in He-3 the facets: are apparently too small to be observed in equilibrium. The number of facets: observed in our experimental conditions is consistent with the theory of dynamic roughening.

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Physical review letters
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03 Feb 2009 11:04
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21 Nov 2022 19:11