Mixed-state Hall effect in YBa2Cu3Oy/PrBa2Cu3Oy superlattices

作者：Wang LM^*; Yang HC; Horng HE

来源：Physical Review Letters, 1997, 78(3): 527-530.

DOI：10.1103/PhysRevLett.78.527

The longitudinal (rho(xx)) and transverse resistivities (rho(xx)) were examined in order to study the effect of flux pinning in the YBa2Cu3Oy/PrBa2Cu3Oy (YBCO/PBCO) superlattices. It was observed that the sign reversal of Hall coefficient R(H) diminished with a decreasing thickness of the individual YBCO layer or with increasing thickness of the individual PBCO layer. The exponent beta in scaling behavior rho(xy) similar to rho(xx)(beta) is magnetic field dependent and the dependence is stronger: for a YBCO/PBCO superlattice with a thinner YBCO layer.

• 出版日期1997-1-20