Phys. Rev. B 76, 024523 (2007) [7 pages]

Absence of a low-temperature anomaly in the Debye-Waller factor of solid ⁴He down to 140 mK

Abstract

References

Citing Articles (11)

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E. Blackburn¹, J. M. Goodkind¹, S. K. Sinha¹, J. Hudis², C. Broholm², J. van Duijn³, C. D. Frost⁴, O. Kirichek⁴, and R. B. E. Down⁴
¹Physics Department, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
²Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA
³Departamento de Química Inorgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
⁴ISIS Facility, Rutherford-Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom

Received 21 June 2007; published 31 July 2007

The mean-square atomic displacement in hcp-phase solid ⁴He has been measured in crystals with a molar volume of 21.3 cm³. It is temperature independent from 1 K to 140 mK, with no evidence for an anomaly in the vicinity of the proposed supersolid transition. The mean-square displacement is different for in-plane motions (0.122±0.001 Å²) and out-of-plane motions (0.150±0.001 Å²).

URL:

http://link.aps.org/doi/10.1103/PhysRevB.76.024523

DOI:

10.1103/PhysRevB.76.024523

PACS:

67.80.Cx, 61.12.Ld

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Phys. Rev. B 76, 024523 (2007) [7 pages]

Absence of a low-temperature anomaly in the Debye-Waller factor of solid 4He down to 140 mK

Absence of a low-temperature anomaly in the Debye-Waller factor of solid ⁴He down to 140 mK