The transverse Meissner effect (TME) in the highly layered superconductor Bi2Sr2CaCu2O8+y with columnar defects is investigated by transport measurements. We present detailed evidence for the persistence of the Bose glass phase for H⊥<H⊥c : (i) the variable-range vortex hopping process for low currents crosses over to the half-loops regime for high currents; (ii) in both regimes 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 thereby clearly show the existence of the TME for H⊥<H⊥c .
@article{arxiv.cond-mat/0203617,
title = {Response to tilted magnetic fields in $Bi_2Sr_2CaCu_2O_8$ with columnar defects : Evidences for transverse Meissner effect},
author = {V. Ta Phuoc and E. Olive and R. De Sousa and A. Ruyter and L. Ammor and J. C. Soret},
journal= {arXiv preprint arXiv:cond-mat/0203617},
year = {2007}
}
Comments
4 pages, 5 figures, accepted for publication in Phys. Rev. Lett