The Glassy Response of Solid 4He to Torsional Oscillations

被引：22

作者：

Graf, M. J. ^{[1
]}

Nussinov, Z. ^{[2
]}

Balatsky, A. V. ^{[1
,3
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] Washington Univ, Dept Phys, St Louis, MO 63160 USA

[3] Los Alamos Natl Lab, CINT, Los Alamos, NM 87545 USA

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2010年 / 158卷 / 3-4期

关键词：

Torsion oscillator; Solid He-4; Glass; Supersolid; NONCLASSICAL ROTATIONAL INERTIA; BOSE-EINSTEIN CONDENSATION; SUPERFLUIDITY; SEARCH;

D O I：

10.1007/s10909-009-9958-z

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We calculated the glassy response of solid He-4 to torsional oscillations assuming a phenomenological glass model. Making only a few assumptions about the distribution of glassy relaxation times in a small subsystem of otherwise rigid solid He-4, we can account for the magnitude of the observed period shift and concomitant dissipation peak in several torsion oscillator experiments. The implications of the glass model for solid He-4 are threefold: (1) The dynamics of solid He-4 is governed by glassy relaxation processes. (2) The distribution of relaxation times varies significantly between different torsion oscillator experiments. (3) The mechanical response of a torsion oscillator does not require a supersolid component to account for the observed anomaly at low temperatures, though we cannot rule out its existence.

引用

页码：550 / 559

页数：10

共 48 条

[1]

Anderson P. W., 1984, BASIC NOTIONS CONDEN, P143

[2]

ANDREEV AF, 1969, SOV PHYS JETP-USSR, V29, P1107

[3]

Andronikashvili E.L., 1946, J. Phys. U.S.S.R, V10, P201

[4] QUANTIZATION OF MACROSCOPIC MOTIONS AND HYDRODYNAMICS OF ROTATING HELIUM .2. [J].

ANDRONIKASHVILI, EL ;

MAMALADZE, YG .

REVIEWS OF MODERN PHYSICS, 1966, 38 (04) :567-+

[5]

ANGELL CA, 1924, SCIENCE, V267, P1995

[6] Measurements of non-classical rotational inertia of solid 4He at two frequencies [J].

Aoki, Y. ;

Graves, J. C. ;

Kojima, H. .

JOURNAL OF LOW TEMPERATURE PHYSICS, 2008, 150 (3-4) :252-257

[7] Oscillation frequency dependence of nonclassical rotation inertia of solid 4He [J].

Aoki, Y. ;

Graves, J. C. ;

Kojima, H. .

PHYSICAL REVIEW LETTERS, 2007, 99 (01)

[8] Entropy of solid 4He:: The possible role of a dislocation-induced glass [J].

Balatsky, A. V. ;

Graf, M. J. ;

Nussinov, Z. ;

Trugman, S. A. .

PHYSICAL REVIEW B, 2007, 75 (09)

[9] Comment on "Observation of Unusual Mass Transport in Solid hcp 4He" [J].

Balibar, Sebastien ;

Caupin, Frederic .

PHYSICAL REVIEW LETTERS, 2008, 101 (18)

[10] Absence of a low-temperature anomaly in the Debye-Waller factor of solid 4He down to 140 mK [J].

Blackburn, E. ;

Goodkind, J. M. ;

Sinha, S. K. ;

Hudis, J. ;

Broholm, C. ;

van Duijn, J. ;

Frost, C. D. ;

Kirichek, O. ;

Down, R. B. E. .

PHYSICAL REVIEW B, 2007, 76 (02)

← 1 2 3 4 5 →