Order parameters and energies of analytic and singular vortex lines in rotating3He-A

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Order parameters and energies of analytic and singular vortex lines in rotating3He-A. / Passvogel, Thomas; Schopohl, N.; Warnke, Martin et al.
in: Journal of Low Temperature Physics, Jahrgang 46, Nr. 1-2, 01.01.1982, S. 161-189.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Passvogel T, Schopohl N, Warnke M, Tewordt L. Order parameters and energies of analytic and singular vortex lines in rotating3He-A. Journal of Low Temperature Physics. 1982 Jan 1;46(1-2):161-189. doi: 10.1007/BF00655450

Bibtex

@article{a0673173016e4d8f8a2c4f590e36b9a4,
title = "Order parameters and energies of analytic and singular vortex lines in rotating3He-A",
abstract = "We present the expressions of the generalized Ginzburg-Landau (GL) theory for the free energy and the supercurrent in terms of the d vector, the magnetic field H, and operators containing the spatial gradient and the rotation Ω. These expressions are then specialized to the Anderson-Brinkman-Morel (ABM) state. We consider eight single-vortex lines of cylindrical symmetry and radius R=[2 mΩ/ℏ]-1/2: the Mermin-Ho vortex, a second analytic vortex, and six singular vortices, i.e., the orbital and radial disgyrations, the orbital and radial phase vortices, and two axial phase vortices. These eight vortex states are determined by solving the Euler-Lagrange equations whose solutions minimize the GL free energy functional. For increasing field, the core radius of the {Mathematical expression} texture of the Mermin-Ho vortex tends to a limiting value, while the core radius of the {Mathematical expression} texture goes to zero. The gap of the singular vortices behaves like rα for r → 0, where α ranges between {Mathematical expression} and {Mathematical expression}. The energy of the radial disgyration becomes lower than that of the Mermin-Ho vortex for fields H≥6.5 H*=6.5×25 G (at T=0.99 Tc and for R=10 L*=60 μm, or ω=2.9 rad/sec). For R → 2ξT(ξT is the GL coherence length) or ω →ωc2 (upper critical rotation speed), the energies of the singular vortices become lower than the energies of the analytic vortices. This is in agreement with the exact result of Schopohl for a vortex lattice at Ωc2. Finally, we calculate the correction of order (1 -T/Tc) to the GL gap for the axial phase vortex. {\textcopyright} 1982 Plenum Publishing Corporation.",
keywords = "Digital media, Media and communication studies",
author = "Thomas Passvogel and N. Schopohl and Martin Warnke and Ludwig Tewordt",
year = "1982",
month = jan,
day = "1",
doi = "10.1007/BF00655450",
language = "English",
volume = "46",
pages = "161--189",
journal = "Journal of Low Temperature Physics",
issn = "0022-2291",
publisher = "Springer New York",
number = "1-2",

}

RIS

TY - JOUR

T1 - Order parameters and energies of analytic and singular vortex lines in rotating3He-A

AU - Passvogel, Thomas

AU - Schopohl, N.

AU - Warnke, Martin

AU - Tewordt, Ludwig

PY - 1982/1/1

Y1 - 1982/1/1

N2 - We present the expressions of the generalized Ginzburg-Landau (GL) theory for the free energy and the supercurrent in terms of the d vector, the magnetic field H, and operators containing the spatial gradient and the rotation Ω. These expressions are then specialized to the Anderson-Brinkman-Morel (ABM) state. We consider eight single-vortex lines of cylindrical symmetry and radius R=[2 mΩ/ℏ]-1/2: the Mermin-Ho vortex, a second analytic vortex, and six singular vortices, i.e., the orbital and radial disgyrations, the orbital and radial phase vortices, and two axial phase vortices. These eight vortex states are determined by solving the Euler-Lagrange equations whose solutions minimize the GL free energy functional. For increasing field, the core radius of the {Mathematical expression} texture of the Mermin-Ho vortex tends to a limiting value, while the core radius of the {Mathematical expression} texture goes to zero. The gap of the singular vortices behaves like rα for r → 0, where α ranges between {Mathematical expression} and {Mathematical expression}. The energy of the radial disgyration becomes lower than that of the Mermin-Ho vortex for fields H≥6.5 H*=6.5×25 G (at T=0.99 Tc and for R=10 L*=60 μm, or ω=2.9 rad/sec). For R → 2ξT(ξT is the GL coherence length) or ω →ωc2 (upper critical rotation speed), the energies of the singular vortices become lower than the energies of the analytic vortices. This is in agreement with the exact result of Schopohl for a vortex lattice at Ωc2. Finally, we calculate the correction of order (1 -T/Tc) to the GL gap for the axial phase vortex. © 1982 Plenum Publishing Corporation.

AB - We present the expressions of the generalized Ginzburg-Landau (GL) theory for the free energy and the supercurrent in terms of the d vector, the magnetic field H, and operators containing the spatial gradient and the rotation Ω. These expressions are then specialized to the Anderson-Brinkman-Morel (ABM) state. We consider eight single-vortex lines of cylindrical symmetry and radius R=[2 mΩ/ℏ]-1/2: the Mermin-Ho vortex, a second analytic vortex, and six singular vortices, i.e., the orbital and radial disgyrations, the orbital and radial phase vortices, and two axial phase vortices. These eight vortex states are determined by solving the Euler-Lagrange equations whose solutions minimize the GL free energy functional. For increasing field, the core radius of the {Mathematical expression} texture of the Mermin-Ho vortex tends to a limiting value, while the core radius of the {Mathematical expression} texture goes to zero. The gap of the singular vortices behaves like rα for r → 0, where α ranges between {Mathematical expression} and {Mathematical expression}. The energy of the radial disgyration becomes lower than that of the Mermin-Ho vortex for fields H≥6.5 H*=6.5×25 G (at T=0.99 Tc and for R=10 L*=60 μm, or ω=2.9 rad/sec). For R → 2ξT(ξT is the GL coherence length) or ω →ωc2 (upper critical rotation speed), the energies of the singular vortices become lower than the energies of the analytic vortices. This is in agreement with the exact result of Schopohl for a vortex lattice at Ωc2. Finally, we calculate the correction of order (1 -T/Tc) to the GL gap for the axial phase vortex. © 1982 Plenum Publishing Corporation.

KW - Digital media

KW - Media and communication studies

UR - http://www.scopus.com/inward/record.url?scp=33744559157&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/4798514e-8d51-3c9b-94a6-72a12200c061/

U2 - 10.1007/BF00655450

DO - 10.1007/BF00655450

M3 - Journal articles

AN - SCOPUS:33744559157

VL - 46

SP - 161

EP - 189

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 1-2

ER -

DOI

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