La2Cu04 in the fluctuation region of the magnetic transition
Borodin V. A. , Doroshev V. D. , Ivanchenko Yu. M., Savosta M. M., Filippov A. E.
A first-order magnetic phase transition occurs in an La2Cu04 sample with TN > 315 К according to measurements of the 139La NQR. The possibility of a fluctuational cutoff of the continuous phase transition resulting in the formation of an abrupt transition, is discussed.