caa a22 4500 445366745 CHVBK 20180317142932.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10909-011-0352-2 doi (NATIONALLICENCE)springer-10.1007/s10909-011-0352-2 Textures of Superfluid 3He-B in Applied Flow andComparison with Hydrostatic Theory [Elektronische Daten] [R. de Graaf, V. Eltsov, P. Heikkinen, J. Hosio, M. Krusius] Measurements of the order parameter texture of rotating superfluid 3He-B have been performed as a function of the applied azimuthal counterflow velocity down to temperatures of 0.2T c. The results are compared to the hydrostatic theory of 3He-B. Good agreement is found at all measured temperatures and rotation velocities when the flow anisotropy contribution to the textural free energy is adjusted. This gives a superfluid energy gap Δ(T) which agrees with that measured by Todoshchenko etal., with Δ(0)=1.97k B T c at 29.0 bar. The B-phase susceptibility, longitudinal resonance frequency, and textural phase transition have been extracted from the measurements as a function of temperature and azimuthal counterflow velocity. Owing to decreasing absorption intensities the present measuring method, based on the line shape analysis of the NMR spectrum, loses its sensitivity with decreasing temperature. However, we find that in practice the measurement of vortex numbers and counterflow velocities is still feasible down to 0.2T c. Springer Science+Business Media, LLC, 2011 Energy gap nationallicence Density anisotropy nationallicence Flare out texture nationallicence Nuclear magnetic resonance nationallicence Superfluid counterflow nationallicence de Graaf R. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut Eltsov V. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut Heikkinen P. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut Hosio J. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut Krusius M. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 163/5-6(2011-06-01), 238-261 0022-2291 163:5-6<238 2011 163 10909 https://doi.org/10.1007/s10909-011-0352-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-011-0352-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- de Graaf R. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut NATIONALLICENCE 700 1- Eltsov V. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut NATIONALLICENCE 700 1- Heikkinen P. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut NATIONALLICENCE 700 1- Hosio J. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut NATIONALLICENCE 700 1- Krusius M. Low Temperature Laboratory, School of Science and Technology, Aalto University, P.O. Box 15100, 00076 AALTO, Espoo, Finland aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 163/5-6(2011-06-01), 238-261 0022-2291 163:5-6<238 2011 163 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer