Response to Tilted Magnetic Fields in Bi2Sr2CaCu2O8 with Columnar Defects: Evidence for Transverse Meissner Effect
V. Ta Phuoc, E. Olive, R. De Sousa, A. Ruyter, L. Ammor, J. C. Soret
DOI 10.1103/PhysRevLett.88.187002 · Physical Review Letters
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Abstract
The transverse Meissner effect (TME) in the highly layered superconductor Bi2Sr2CaCu2O8+y with columnar defects is investigated by transport measurements. We present evidence for the persistence of the Bose glass phase for H⊥<H⊥c: (i) the variable-range vortex hopping process crosses over to the half-loop regime; (ii) near H⊥c the energy barriers vanish linearly with H⊥; (iii) the transition temperature is governed by TBG(H∥,0)−TBG(H∥,H⊥)∼|H⊥|1/ν⊥ with ν⊥=1.0±0.1. Furthermore, above the transition as H⊥→H⊥c+, moving kink chains consistent with a commensurate-incommensurate transition scenario are observed. These results show the existence of the TME for H⊥<H⊥c.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure not reported | unknown |
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