Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Normal-state magnetotransport in superconducting Tl2Ba2CuO6+δ to millikelvin temperatures

There are no MPG-Authors in the publication available
External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Mackenzie, A. P., Julian, S., Sinclair, D., & Lin, C. (1996). Normal-state magnetotransport in superconducting Tl2Ba2CuO6+δ to millikelvin temperatures. Physical Review B, 53(9), 5848-5855. doi:10.1103/PhysRevB.53.5848.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-EC44-E
We report a study of the normal-state Hall effect and magnetoresistance of single crystals of Tl2Ba2CuO6-delta. Using samples with T-c<15 K, we can suppress the superconductivity down to low temperatures with magnetic fields of 16 T, and can thus study the normal state properties over three decades of temperature, extending into the T-->0 limit where it is possible to make a reliable estimate of k(F) similar to 0.7 Angstrom(-1) from the Hall effect in the elastic-scattering regime. The temperature dependence of the Hall coefficient, R(H), below 30 K rules out models in which R(H)(T) is taken as a measure of a real temperature-dependent change in the carrier concentration. The two scattering rates (probed by the resistivity and the cotangent of the Hall angle) which characterize normal-state transport in the cuprates also appear in this overdoped material for T greater than or equal to 30 K. However, as T-->0, we observe only a single scattering rate, whose temperature dependence is dominated by low power terms, in contrast to the T-2 dependence predicted for a Fermi liquid. The relationship between these findings and anomalous behavior previously reported for the upper critical field is discussed.