Observation of Higher Order Facets on <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>H</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mi>e</mi></math></span> Crystals

V. Tsepelin; H. Alles; A. Babkin; J. P. H. Härme; R. Jochemsen; A. Ya. Parshin; G. Tvalashvili

doi:10.1103/PhysRevLett.86.1042

Observation of Higher Order Facets on ${}^{3}H e$ Crystals

V. Tsepelin, H. Alles, A. Babkin, J. P. H. Härme, R. Jochemsen, A. Ya. Parshin, and G. Tvalashvili

Phys. Rev. Lett. 86, 1042 – Published 5 February 2001

Abstract

Faceting has been observed on $^{3} He$ crystals investigated with a low-temperature Fabry-Pérot interferometer. Nine types of facets were clearly identified during growth of a bcc- $^{3} He$ 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 $^{3} He$ 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.

Received 12 October 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.1042

Authors & Affiliations

V. Tsepelin, H. Alles, A. Babkin^*, J. P. H. Härme, R. Jochemsen^†, A. Ya. Parshin^‡, and G. Tvalashvili^§

Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT, Finland

^*Present address: Department of Physics and Astronomy, University of New Mexico, 800 Yale Boulevard N.E., Albuquerque, NM 87131.
^†Permanent address: Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300RA Leiden, The Netherlands.
^‡Permanent address: P. L. Kapitza Institute for Physical Problems, ul. Kosygina 2, 117334 Moscow, Russia.
^§Present address: Department of Physics, Lancaster University, Lancaster LA1 4YB, U.K.