Magnetization and hysteresis of melt-textured YBa2Cu3O7-xin a crossed flux configuration

We report on the measurement of magnetization in melt-textured YBa 2 Cu 3 O 7-x samples, in the presence of a crossed remnant flux along the c axis. The ab plane magnetization curves become progressively flatter as the magnitude of the remanence increases. The remanence along the c axis decreases as the field in the ab plane increases, and with decreasing remanence the crossed flux magnetization curves merge with the uncrossed one. The c axis remanence is observed to help in both the entry and exit of the ab plane flux by effectively reducing the pinning barriers. The decrease of the remanence and flux pinning along the ab plane are discussed in terms of rotation and expulsion of flux, and the possibility of flux cutting.