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

Journal Article · Sun Jul 01 00:00:00 EDT 2007 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.76.024523· OSTI ID:20946390

Blackburn, E; Goodkind, J M; Sinha, S K ^[1]; Hudis, J; Broholm, C ^[2]; Duijn, J van ^[3]; Frost, C D; Kirichek, O; Down, R B. E. ^[4]

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1. Physics Department, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093 (United States)
2. Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218 (United States)
3. Departamento de Quimica Inorganica I, Facultad de Ciencias Quimicas, Universidad Complutense de Madrid, 28040 Madrid (Spain)
4. ISIS Facility, Rutherford-Appleton Laboratory, Chilton, Didcot, OX11 0QX (United Kingdom)

The mean-square atomic displacement in hcp-phase solid {sup 4}He has been measured in crystals with a molar volume of 21.3 cm{sup 3}. 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 A{sup 2}) and out-of-plane motions (0.150{+-}0.001 A{sup 2})

• OSTI ID: 20946390
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 76, Issue 2; Other Information: DOI: 10.1103/PhysRevB.76.024523; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMIC DISPLACEMENTS
CRYSTALS
DEBYE-WALLER FACTOR
HCP LATTICES
HELIUM 4
PHASE TRANSFORMATIONS
RINGS
SOLIDS
TEMPERATURE RANGE 0065-0273 K