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VOLUME 77, NUMBER 21 P H Y S I C A L R E V I E W L E T T E R S 18 NOVEMBER 1996 Large Dynamical Fluctuations in the Microwave Conductivity of YBa2Cu3O72d above Tc
 

Summary: VOLUME 77, NUMBER 21 P H Y S I C A L R E V I E W L E T T E R S 18 NOVEMBER 1996
Large Dynamical Fluctuations in the Microwave Conductivity of YBa2Cu3O72d above Tc
James C. Booth,1
Dong Ho Wu,1
S. B. Qadri,2
E. F. Skelton,2
M. S. Osofsky,2
Alberto Piqu,3
and Steven M. Anlage1
1
Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742-4111
2
U. S. Naval Research Laboratory, Washington, D.C. 20375
3
Neocera, Inc., 10000 Virginia Manor Road, Suite 300, Beltsville, Maryland 20705
(Received 27 June 1996)
We report a systematic investigation of dynamical fluctuation effects in the frequency-dependent mi-
crowave conductivity (45 MHz45 GHz) of YBa2Cu3O72d thin films for T * Tc. Our measurements
directly yield a dynamical critical exponent z in the range 2.33.0, and the fluctuation lifetime tfl
,

  

Source: Anlage, Steven - Center for Superconductivity Research & Department of Physics, University of Maryland at College Park

 

Collections: Materials Science