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

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

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.
OriginalspracheEnglisch
ZeitschriftJournal of Low Temperature Physics
Jahrgang46
Ausgabenummer1-2
Seiten (von - bis)161-189
Anzahl der Seiten29
ISSN0022-2291
DOIs
PublikationsstatusErschienen - 01.01.1982
Extern publiziertJa

DOI

Zuletzt angesehen

Forschende

  1. Neele Puhlmann

Publikationen

  1. Efficacy of a Web-Based Intervention With Mobile Phone Support in Treating Depressive Symptoms in Adults With Type 1 and Type 2 Diabetes
  2. Use of design methods, team leaders' goal orientation, and team effectiveness: A follow-up study in software development projects
  3. Determinants and Outcomes of Dual Distribution:
  4. Modeling self-determination theory motivation data by using unfolding IRT
  5. Industry 4.0 more than a challenge in modeling, identification, and control for cyber-physical systems
  6. Using Conjoint Analysis to Elicit Preferences for Occupational Health Services in Small and Microenterprises
  7. Optimal trajectory generation for camless internal combustion engine valve control
  8. Noise level estimation and detection
  9. The Practical Significance of History: When and How History Can Be Used for Institutional Change
  10. Differentiating forest types using TerraSAR–X spotlight images based on inferential statistics and multivariate analysis
  11. Grounds different from, though equally solid with
  12. Linear free vibrations with uncertain initial conditions
  13. Material flow analysis between dynamic modelling and life cycle assessment
  14. Designing a Thrifty Approach for SME Business Continuity: Practices for Transparency of the Design Process
  15. Modelling, Simulation and Experimental Analysis of a Metal-Polymer Hybrid Fibre based Microstrip Resonator for High Frequency Characterisation
  16. The Relation of Children's Performances in Spatial Tasks at Two Different Scales of Space
  17. In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Y
  18. How Much Home Office is Ideal? A Multi-Perspective Algorithm
  19. Pushing the Envelope: Creating Public Value in the Labor Market