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Author (up) Pasquini, G.; Luna, D.; Nieva, G. openurl 
  Title Oscillatory dynamics in the vortex matter of twinned and untwinned YBa2Cu3O7 crystals Type Journal Article
  Year 2007 Publication PHYSICAL REVIEW B Abbreviated Journal  
  Volume 76 Issue 21 Pages 212302  
  Keywords  
  Abstract Experiments of oscillatory dynamics in twinned YBa2Cu3O7 (YBCO) crystals in a dc magnetic field tilted with respect to the twin planes indicate that history effects (HEs) in these samples cannot be ascribed to an equilibration process but have its origin in the oscillatory character of the vortex dynamics. However, the role that extended twin boundaries play in the HEs of YBCO crystals has been the subject of controversies until now. In this work, we study the role of correlated defects in the dynamic history effects by performing angular ac susceptibility measurements in twinned and detwinned YBCO crystals. We confirm that in any case, whenever HEs are observed, the temporal symmetry of the shaking ac field plays a major role.  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1098-0121 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000251986100008 Approved no  
  Call Number BT @ hernan @ Serial 196  
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