TY - JOUR
T1 - Pressure dependence of the longitudinal resonance frequency of 3He superfluid phases in aerogel
AU - Li, J. I.A.
AU - Pollanen, J.
AU - Collett, C. A.
AU - Gannon, W. J.
AU - Halperin, W. P.
PY - 2012
Y1 - 2012
N2 - Pulsed NMR measurements have been performed on superfluid 3He within a 98% porosity aerogel over a pressure range of 8 to 26 bar. The aerogel sample is homogeneous and isotropic as indicated by in situ optical birefringence and, on similarly prepared samples, using SAXS characterization [1]. Two different superfluid phases are observed at low temperature. The two phases are identified as the same as the A and B-phases in pure 3He, from tip angle measurement and the NMR equations of Leggett [2]. The pressure and temperature dependence of the longitudinal resonance frequency of each phase is reported in this article.
AB - Pulsed NMR measurements have been performed on superfluid 3He within a 98% porosity aerogel over a pressure range of 8 to 26 bar. The aerogel sample is homogeneous and isotropic as indicated by in situ optical birefringence and, on similarly prepared samples, using SAXS characterization [1]. Two different superfluid phases are observed at low temperature. The two phases are identified as the same as the A and B-phases in pure 3He, from tip angle measurement and the NMR equations of Leggett [2]. The pressure and temperature dependence of the longitudinal resonance frequency of each phase is reported in this article.
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U2 - 10.1088/1742-6596/400/1/012039
DO - 10.1088/1742-6596/400/1/012039
M3 - Conference article
AN - SCOPUS:84873627467
SN - 1742-6588
VL - 400
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - PART 1
M1 - 012039
T2 - 26th International Conference on Low Temperature Physics, LT 2011
Y2 - 10 August 2011 through 17 August 2011
ER -