299 citations
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cond-mat.supr-con2010★ 4 cited
Pinning of spiral fluxons by giant screw dislocations in YBa_2Cu_3O_7 single crystals: Josephson analog of the fishtail effect
S. Sergeenkov, L. Jr. Cichetto, V. A. G. Rivera +4
By using a highly sensitive homemade AC magnetic susceptibility technique, the magnetic flux penetration has been measured in YBa_2Cu_3O_7 single crystals with giant screw dislocat…
math.DS2010
Measure and cocycle rigidity for certain non-uniformly hyperbolic actions of higher rank abelian groups
Anatole Katok, Federico Rodriguez Hertz
We prove absolute continuity of "high entropy" hyperbolic invariant measures for smooth actions of higher rank abelian groups assuming that there are no proportional Lyapunov expon…