Evidence for charge glasslike behavior in lightly doped La2-xSrxCuO4 at low temperatures.
A c-axis magnetotransport and resistance noise study in La_(1.97)Sr_(0.03)CuO_(4) reveals clear signatures of glassiness, such as hysteresis, memory, and slow, correlated dynamics, but only at temperatures (T) well below the spin glass transition temperature T_(sg). The results strongly suggest the emergence of charge glassiness, or dynamic charge ordering, as a result of Coulomb interactions.
Raicević
I
I
National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA. raicevic@magnet.fsu.edu
Jaroszyński
J
J
Popović
Dragana
D
Panagopoulos
C
C
Sasagawa
T
T