Effect of Magnetic Boundary Conditions on Superfluid 3He in Nematic Aerogel

被引:34
作者
Dmitriev, V. V. [1 ]
Soldatov, A. A. [1 ,2 ]
Yudin, A. N. [1 ]
机构
[1] RAS, PL Kapitza Inst Phys Problems, Moscow 119334, Russia
[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia
关键词
POLARIZED SCATTERING CENTERS; IMRY-MA STATE; ORDERED AEROGEL; B-PHASE; SILICA AEROGEL; LIQUID-HE-3; FILMS;
D O I
10.1103/PhysRevLett.120.075301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report results of experiments with superfluid He-3 confined in aerogels with parallel strands which lead to anisotropic scattering of He-3 quasiparticles. We vary boundary conditions for the scattering by covering the strands with different numbers of atomic He-4 layers and observe that the superfluid phase diagram and the nature of superfluid phases strongly depend on the coverage. We assume the main reason for these phenomena is a magnetic channel of the scattering which becomes important at low coverages and can be essential in other Fermi systems with triplet pairing.
引用
收藏
页数:5
相关论文
共 48 条
[1]   Pairing states of superfluid 3He in uniaxially anisotropic aerogel [J].
Aoyama, K ;
Ikeda, R .
PHYSICAL REVIEW B, 2006, 73 (06)
[2]   Effects of Magnetic Impurity Scattering on Superfluid 3He in Agrogel [J].
Aoyama, Kazushi ;
Ikeda, Ryusuke .
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 3: QUANTUM GASES LIQUIDS AND SOLIDS, 2009, 150
[3]   Structure and properties of "nematically ordered" aerogels [J].
Asadchikov, V. E. ;
Askhadullin, R. Sh. ;
Volkov, V. V. ;
Dmitriev, V. V. ;
Kitaeva, N. K. ;
Martynov, P. N. ;
Osipov, A. A. ;
Senin, A. A. ;
Soldatov, A. A. ;
Chekrygina, D. I. ;
Yudin, A. N. .
JETP LETTERS, 2015, 101 (08) :556-561
[4]   Anisotropic 2D Larkin-Imry-Ma State in the Polar Distorted ABM Phase of 3He in a "Nematically Ordered" Aerogel [J].
Askhadullin, R. Sh. ;
Dmitriev, V. V. ;
Martynov, P. N. ;
Osipov, A. A. ;
Senin, A. A. ;
Yudin, A. N. .
JETP LETTERS, 2015, 100 (10) :662-668
[5]   Measurements of spin diffusion in liquid 3He in "ordered" aerogel [J].
Askhadullin, R. Sh ;
Dmitriev, V. V. ;
Krasnikhin, D. A. ;
Martynov, P. N. ;
Melnikovsky, L. A. ;
Osipov, A. A. ;
Senin, A. A. ;
Yudin, A. N. .
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 2012, 400
[6]   Phase diagram of superfluid 3He in "nematically ordered" aerogel [J].
Askhadullin, R. Sh. ;
Dmitriev, V. V. ;
Krasnikhin, D. A. ;
Martynov, P. N. ;
Osipov, A. A. ;
Senin, A. A. ;
Yudin, A. N. .
JETP LETTERS, 2012, 95 (06) :326-331
[7]   Observation of Half-Quantum Vortices in Topological Superfluid 3He [J].
Autti, S. ;
Dmitriev, V. V. ;
Makinen, J. T. ;
Soldatov, A. A. ;
Volovik, G. E. ;
Yudin, A. N. ;
Zavjalov, V. V. ;
Eltsov, V. B. .
PHYSICAL REVIEW LETTERS, 2016, 117 (25)
[8]   Cooper pairing in 3He in the presence of spin-polarized scattering centers [J].
Baramidze, G ;
Kharadze, G .
PHYSICA B-CONDENSED MATTER, 2000, 284 :305-306
[9]   Superfluid 3He in presence of spin-polarized scattering centers [J].
Baramidze, GA ;
Kharadze, GA .
JOURNAL OF LOW TEMPERATURE PHYSICS, 2004, 135 (5-6) :399-409
[10]   Observation of a superfluid He-3 A-B phase transition in silica aerogel [J].
Barker, BI ;
Polukhina, YLL ;
Osheroff, DD ;
Hrubesh, LW ;
Poco, JF .
PHYSICAL REVIEW LETTERS, 2000, 85 (10) :2148-2151