Evidence for charged critical fluctuations in underdoped Y-123

T. Schneider; R. Khasanov; K. Conder; E. Pomjakushina; R. Bruetsch; H. Keller

Evidence for charged critical fluctuations in underdoped Y-123

Superconductivity 2007-05-23 v1

Authors: T. Schneider , R. Khasanov , K. Conder , E. Pomjakushina , R. Bruetsch , H. Keller

Abstract

We report and analyze in-plane penetration depth measurements in YBa2Cu3O7-x taken close to the critical temperature Tc. In underdoped YBa2Cu3O6:59 we find consistent evidence for charged critical behavior. Noting that the effective dimensionless charge scales as 1/sqrt(Tc), this new critical behavior should be generically observable in suitably underdoped cuprates.

Keywords

penetration depth critical fluctuations underdoped cuprates YBCO critical temperature

Cite

@article{arxiv.cond-mat/0406691,
  title  = {Evidence for charged critical fluctuations in underdoped Y-123},
  author = {T. Schneider and R. Khasanov and K. Conder and E. Pomjakushina and R. Bruetsch and H. Keller},
  journal= {arXiv preprint arXiv:cond-mat/0406691},
  year   = {2007}
}

Comments

5 pages, 4 figures

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