Published May 1, 1999
| Published
Journal Article
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Signature of the matching field in Bose-glass melting of untwinned YBa_2Cu_3O_(7-δ) single crystals
Abstract
We map out the phase boundary separating the Bose-glass and vortex-liquid phases in an irradiated twin-free YBa_2Cu_3O_(7-δ) single crystal. We take the phase boundary to be the temperature T_g and magnetic field H at which the crystal begins to screen a small ac magnetic field, h_(ac). There is a significant change in slope dT_g/dH of the phase boundary at the matching field B_Φ (≃0.5 T) indicating that interstitial vortices significantly weaken pinning in the Bose-glass state. There is also a pronounced peak in the slope dT_g/dH just below B_Φ at higher h_(ac). Both features disappear when the field is tilted away from the columns.
Additional Information
© 1999 The American Physical Society. Received 29 December 1998. We are grateful to L. Radzihovsky for illuminating discussions. This work was supported by the National Science Foundation (Grant No. DMR91-20000) through the Science and Technology Center for Superconductivity. G.W.C. and W.K. acknowledge support from the U.S. Department of Energy, Basic Energy Sciences–Materials Science under Contract No W-31-109-ENG-38.Attached Files
Published - PhysRevB.59.R11665.pdf
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PhysRevB.59.R11665.pdf
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Additional details
- Alternative title
- Signature of the matching field in Bose-glass melting of untwinned YBa2Cu3O7-δ single crystals
- Eprint ID
- 46976
- Resolver ID
- CaltechAUTHORS:20140707-163032049
- NSF
- DMR91-20000
- Department of Energy (DOE)
- W-31-109-ENG-38
- Created
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2014-07-09Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field