TY - JOUR

T1 - The A-phase at very low temperatures, a one-dimensional excitation gas

AU - FISHER, SN

AU - Guénault, A.M.

AU - Pickett, George

PY - 1994/2

Y1 - 1994/2

N2 - The excitation gas in the A-phase at very low temperatures is concentrated in the region of the Fermi surface around the polar nodes in the gap and is thus almost one-dimensional. These low lying excitations are trapped by Andreev reflection in ''directional'' quantum wells created by the textural configuration. Although the vast bulk of quasiparticles at the lowest temperatures are in such states they have virtually no effect on the transport properties or on the damping of mechanical resonators since they have very little probability of ever reaching a surface.

AB - The excitation gas in the A-phase at very low temperatures is concentrated in the region of the Fermi surface around the polar nodes in the gap and is thus almost one-dimensional. These low lying excitations are trapped by Andreev reflection in ''directional'' quantum wells created by the textural configuration. Although the vast bulk of quasiparticles at the lowest temperatures are in such states they have virtually no effect on the transport properties or on the damping of mechanical resonators since they have very little probability of ever reaching a surface.

KW - VIBRATING-WIRE

KW - BEHAVIOR

KW - HE-3-A

U2 - 10.1016/0921-4526(94)90726-9

DO - 10.1016/0921-4526(94)90726-9

M3 - Journal article

VL - 194-196

SP - 793

EP - 794

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - 1

T2 - 20th International Conference on Low Temperature Physics

Y2 - 4 August 1993 through 11 August 1993

ER -