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Author (up) Rodriguez, E.; Luzuriaga, J.; Núñez Regueiro, M.; Fainstein, C. doi  openurl
  Title Low temperature internal friction peak in high Tc superconductors Type Journal Article
  Year 1991 Publication Solid State Communications Abbreviated Journal Solid State Commun.  
  Volume 77 Issue 10 Pages 777-780  
  Keywords Ceramic Materials; Oxides – Acoustic Properties; Yttrium Compounds – Acoustic Properties; Acoustic Variables Measurement; Attenuation Peak; Calcium Compounds; Low Temperature Internal Friction Peak; Strontium Compounds; Thermally Activated Relaxation Behavior; High Temperature Superconductors  
  Abstract We measure the internal friction Q-1 in YBa2Cu3O7-x and Bi2Sr2CaCu2O8+x samples. At temperatures near 35 K for KHz frequencies we observe an attenuation peak. In the case of YBa2Cu3O7-x, assuming a thermally activated relaxation behaviour, we are able to show that it corresponds to the same process as other peaks observed at higher frequencies. For Bi2Sr2CaCu2O8+x this is not the case, and the origin of the peak, found in all the measured samples, remains unknown.  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0038-1098 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:A1991FA71400006 Approved no  
  Call Number BT @ hernan @ Serial 256  
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