Strong diamagnetic response and specific heat anomaly aboveTcin underdopedLa2−xSrxCuO4
@article{Thisted2003StrongDR, title={Strong diamagnetic response and specific heat anomaly aboveTcin underdopedLa2−xSrxCuO4}, author={Ulrik Thisted and J{\o}rgen Nyhus and T. Suzuki and Junya Hori and Kristian Fossheim}, journal={Physical Review B}, year={2003}, volume={67}, pages={184510} }
By measuring ac susceptibility using a very low amplitude of the ac field $(l1\mathrm{mG})$ it is shown that underdoped samples of ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ are diamagnetic in a temperature region above ${T}_{c}$ up to a temperature ${T}^{*}.$ This behavior is only observed with ac fields along the c axis whereas for fields in the $\mathrm{ab}$ plane no diamagnetism above ${T}_{c}$ was detected. The diamagnetism is almost frequency independent in the…
4 Citations
Strong diamagnetic response and specific heat anomaly above Tc in underdoped La2-xSrxCuO4
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