Muon Spin Rotation Studies of the Vortex Matter in the High-T_{c} Superconductor Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}

• Authors: T. Blasius , Ch. Niedermayer , J. Tallon , D. Pooke , A. Golnik , D. Noakes , C. Stronach , E. Ansaldo , R. Henn , C. Lin , C. Bernhard
• Languages of publication: EN

Abstracts

EN

We report muon spin rotation studies of the magnetic field distribution n(B) in the vortex state of the high-temperature superconductor Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}. From our data on three sets of overdoped, nearly optimized and underdoped single crystals we obtain evidence for a two-stage melting process of the vortex matter under equilibrium conditions. In the irreversible regime well below the irreversibility line we observe a transition in the vortex state which we associate with an intra-planar melting transition. The resulting flux-line liquid phase persists over a sizeable temperature interval before the inter-planar decoupling of the individual vortex lines takes place in a second step at the irreversibility line, resulting in a pancake liquid phase.

Keywords

EN

74.60.Ge; 74.25.Dw; 74.72.Hs; 76.75.+i

Discipline

• 76.75.+i: Muon spin rotation and relaxation
• 74.25.Dw: Superconductivity phase diagrams

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 96
• Issue: 2
• Pages: 245-258

Dates

published

1999-08

Contributors

author

T. Blasius

• Universität Konstanz, Fakultät für Physik, 78457 Konstanz, Germany

author

Ch. Niedermayer

• Universität Konstanz, Fakultät für Physik, 78457 Konstanz, Germany

author

J. Tallon

• The New Zealand Institute for Industrial Research, P.O. Box 31310, Lower Hutt, New Zealand

author

D. Pooke

• The New Zealand Institute for Industrial Research, P.O. Box 31310, Lower Hutt, New Zealand

author

A. Golnik

• Institute of Experimental Physics, Warsaw University, 00-681 Warsaw, Poland

author

D. Noakes

• Virginia State University, Petersburg, Virginia 23806, USA

author

C. Stronach

• Virginia State University, Petersburg, Virginia 23806, USA

author

E. Ansaldo

• University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 0W0

author

R. Henn

• Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart, Germany

author

C. Lin

• Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart, Germany

author

C. Bernhard

• Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart, Germany

Identifiers

DOI

10.12693/APhysPolA.96.245