Abstract
Recently, Kim and Chan (Science 305:1941, 2004; Phys. Rev. Lett. 97:115302, 2006) have reported an anomalous decoupling transition of solid 4He in a torsional oscillator measurement, and interpret their results as evidence for non-classical rotational inertia and a possible supersolid phase of 4He. The detailed nature and properties of such a “supersolid” state in 4He are still far from being clear, although there are clues from experiments involving 3He impurities, different sample cell geometries, annealing effects and grain boundary flow. Defects produced during crystal growth or deformation (e.g. dislocations) may affect supersolidity, or even produce it, and they are expected to have significant impact on the elastic properties of the solid. The supersolid fraction could also decouple from the lattice and produce a decrease in the transverse sound speed. We have begun the experiments in this laboratory to study such effects, measuring the velocity and attenuation of transverse ultrasound at 10 MHz in 4He single crystals grown at constant pressure.
Similar content being viewed by others
References
E. Kim, M.H.W. Chan, Science 305, 1941 (2004)
E. Kim, M.H.W. Chan, Phys. Rev. Lett. 97, 115302 (2006)
L.D. Landau, E.M. Lifshitz, Statistical Physics, 1st edn. (Pergamon Press, Oxford, 1958), 2nd edn. (1969, 1977)
A.F. Andreev, I.M. Lifshitz, Sov. Phys. JETP 29, 1107 (1969)
G.V. Chester, Phys. Rev. A 2, 256 (1970)
A.J. Leggett, Phys. Rev. Lett. 25, 1543 (1970)
A.S.C. Rittner, J.D. Reppy, Phys. Rev. Lett. 97, 165301 (2006)
M. Kondo, S. Takada, Y. Shibayama, K. Shirahama, J. Low Temp. Phys. 148, 695 (2007)
A. Penzev, Y. Yasuda, M. Kubota, J. Low Temp. Phys. 148, 677 (2007)
Y. Aoki, J.C. Graves, H. Kojima, Phys. Rev. Lett. 99, 015301 (2007)
A.S.C. Rittner, J.D. Reppy, Phys. Rev. Lett. 98, 175302 (2007)
C.A. Burns, J.M. Goodkind, J. Low Temp. Phys. 93, 15 (1993)
J. Day, J. Beamish, Phys. Rev. Lett. 96, 105304 (2006)
S.O. Diallo, J.V. Pearce, R.T. Azuah, O. Kirichek, J.W. Taylor, H.R. Glyde, Phys. Rev. Lett. 98, 205301 (2007)
I.A. Todoshchenko, H. Alles, H.J. Junes, A.Y. Parshin, V. Tsepelin, JETP Lett. 85, 555 (2007)
Y. Aoki, H. Kojima, in American Physical Society, APS March Meeting, 13–17 March, abstract G41.009 (2006)
P.-C. Ho, I.P. Bindloss, J.M. Goodkind, J. Low Temp. Phys. 109, 409 (1997)
R. Wanner, I. Iwasa, Solid State Commun. 18, 853 (1976)
D.S. Greywall, Phys. Rev. A 3, 2106 (1971)
A. Granato, K. Lücke, J. Appl. Phys. 27, 583 (1997)
I. Iwasa, K. Araki, H. Suzuki, J. Phys. Soc. Jpn. 46, 1119 (1979)
A.T. Dorsey, P.M. Goldbart, J. Toner, Phys. Rev. B 71, 140506 (2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Syshchenko, O., Beamish, J. Transverse Ultrasound Measurements in 4He Single Crystals. J Low Temp Phys 150, 276–281 (2008). https://doi.org/10.1007/s10909-007-9542-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10909-007-9542-3