| Autor: |
Mulders, N., West, J. T., Chan, M. H. W., Kodituwakku, C. N., Burns, C. A., Lurio, L. B. |
| Rok vydání: |
2008 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.101.165303 |
| Popis: |
X-ray diffraction experiments show that solid 4He grown in aerogel is highly polycrystalline, with a hcp crystal structure (as in bulk) and a crystallite size of approximately 100 nm. In contrast to the expectation that the highly disordered solid will have a large supersolid fraction, torsional oscillator measurements show a behavior that is strikingly similar to high purity crystals grown from the superfluid phase. The low temperature supersolid fraction is only ~3x10-4 and the onset temperature is ~ 100 mK. |
| Databáze: |
arXiv |
| Externí odkaz: |
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