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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2007 Volume 86, Issue 3, Pages 244–248 (Mi jetpl824)

This article is cited in 60 papers

CONDENSED MATTER

The Orientation Effect on Superfluid $^3$He in Anisotropic Aerogel

T. Kunimatsua, T. Satob, K. Izuminab, A. Matsubaraabc, Y. Sasakiac, M. Kubotaa, O. Ishikawad, T. Mizusakia, Yu. M. Bunkovbe

a Department of Physics, Graduate School of Science, Kyoto University
b Institute for Solid State Physics, The University of Tokyo
c Research Center for Low Temperature and Materials Sciences, Kyoto University
d Graduate School of Science, Osaka City University
e MCBT, Institute Neel, CNRS

Abstract: We report on the orientation of the order parameter in the A-like and B-like phases of superfluid $^3$He immersed in uniaxially-compressed aerogel. By NMR methods we find that the orbital momentum of the A- and B-like phases is oriented along the deformation. In the A-like phase we observe a relatively narrow NMR line with an anomalously large negative frequency shift. We have succeeded in measuring the Leggett frequency in the A-like phase which shows the same energy gap suppression as in the B-like phase.

PACS: 67.57.-z

Received: 21.06.2007

Language: English


 English version:
Journal of Experimental and Theoretical Physics Letters, 2007, 86:3, 216–220

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