Stripe Domains and First Order Phase Transition in the Vortex Matter of Anisotropic High-temperature Superconductors
Abstract
We report the direct imaging of a novel modulated flux striped domain phase in a nearly twin-free YBCO crystal. These domains arise from instabilities in the vortex structure within a narrow region of tilted magnetic fields at small angles from the in-plane direction. By comparing the experimental and theoretically derived vortex phase diagrams we infer that the stripe domains emerge from a first-order phase transition of the vortex structure. The size of domains containing vortices of certain orientations is controlled by the balance between the vortex stray field energy and the positive energy of the domain boundaries. Our results confirm the existence of the kinked vortex chain phase in an anisotropic high temperature superconductor and reveal a sharp transition in the state of this phase resulting in regular vortex domains.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1357181
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 112; Journal Issue: 15; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Vlasov-Vlasov, V. K., Clem, J. R., Koshelev, A. E., Welp, Ulrich, and Kwok, W. Stripe Domains and First Order Phase Transition in the Vortex Matter of Anisotropic High-temperature Superconductors. United States: N. p., 2014.
Web. doi:10.1103/PhysRevLett.112.157001.
Vlasov-Vlasov, V. K., Clem, J. R., Koshelev, A. E., Welp, Ulrich, & Kwok, W. Stripe Domains and First Order Phase Transition in the Vortex Matter of Anisotropic High-temperature Superconductors. United States. https://doi.org/10.1103/PhysRevLett.112.157001
Vlasov-Vlasov, V. K., Clem, J. R., Koshelev, A. E., Welp, Ulrich, and Kwok, W. Thu .
"Stripe Domains and First Order Phase Transition in the Vortex Matter of Anisotropic High-temperature Superconductors". United States. https://doi.org/10.1103/PhysRevLett.112.157001. https://www.osti.gov/servlets/purl/1357181.
@article{osti_1357181,
title = {Stripe Domains and First Order Phase Transition in the Vortex Matter of Anisotropic High-temperature Superconductors},
author = {Vlasov-Vlasov, V. K. and Clem, J. R. and Koshelev, A. E. and Welp, Ulrich and Kwok, W.},
abstractNote = {We report the direct imaging of a novel modulated flux striped domain phase in a nearly twin-free YBCO crystal. These domains arise from instabilities in the vortex structure within a narrow region of tilted magnetic fields at small angles from the in-plane direction. By comparing the experimental and theoretically derived vortex phase diagrams we infer that the stripe domains emerge from a first-order phase transition of the vortex structure. The size of domains containing vortices of certain orientations is controlled by the balance between the vortex stray field energy and the positive energy of the domain boundaries. Our results confirm the existence of the kinked vortex chain phase in an anisotropic high temperature superconductor and reveal a sharp transition in the state of this phase resulting in regular vortex domains.},
doi = {10.1103/PhysRevLett.112.157001},
journal = {Physical Review Letters},
number = 15,
volume = 112,
place = {United States},
year = {Thu Apr 17 00:00:00 EDT 2014},
month = {Thu Apr 17 00:00:00 EDT 2014}
}
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