Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Anisotropy of growth kinetics of He-3 crystals below 1 mK.
AU - Tsepelin, Viktor
AU - Alles, Harry
AU - Babkin, A.
AU - Jochemsen, Reyer
AU - Parshin, Alexander Y.
AU - Todoshchenko, Igor A.
PY - 2002/1
Y1 - 2002/1
N2 - The growth anisotropy of different facets has been measured in He-3 crystals at 0.55 mK using a low-temperature Fabry-Perot interferometer and high-resolution pressure measurements. The observed linear dependence of the growth velocity on the driving force shows that facets grow due to the presence of dislocations. The values of the obtained step energies suggest that He-3 has stronger coupling of the liquid-solid interface to the lattice than has been expected. The dependence of the step energy versus the step height is consistent with a quartic power law pointing out that the step-step interactions are of elastic origin.
AB - The growth anisotropy of different facets has been measured in He-3 crystals at 0.55 mK using a low-temperature Fabry-Perot interferometer and high-resolution pressure measurements. The observed linear dependence of the growth velocity on the driving force shows that facets grow due to the presence of dislocations. The values of the obtained step energies suggest that He-3 has stronger coupling of the liquid-solid interface to the lattice than has been expected. The dependence of the step energy versus the step height is consistent with a quartic power law pointing out that the step-step interactions are of elastic origin.
KW - SOLID HE-3
KW - MELTING PRESSURE
KW - SURFACES
U2 - 10.1103/PhysRevLett.88.045302
DO - 10.1103/PhysRevLett.88.045302
M3 - Journal article
VL - 88
SP - 045302
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 4
ER -