Hall effect on epitaxial YBa2Cu3Oτ and Bi2Sr2CaCu2Oy films

✍ Scribed by R. Hopfengärtner; M. Leghissa; G. Kreiselmeyer; P. Schmitt; B. Holzapfel; I. Khassanov; J. Ströbel; G. Saemann-Ischenko

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 178 KB
• Volume: 185-189
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)91864-z

✦ Synopsis

We report Hall effect measurements on epitaxial YBa2CuaOr and Bi2Sr2CaCu:O v films in the normal state and in the phase transition. The Hall coefficient R~ (BUe-axis, jllab-plane) of both compounds in the normal state is positive and strongly temperature dependent. The unusual temperature dependence of RN will be compared to the prediction of our calculation based on a renormalized two-dimensional tight binding model, which accounts to some extent for strong correlation effects. Below Te the Hall coefficient, which is strongly dependent on both the temperature and the magnetic field, exhibits a peculiar sign reversal.