Gauge field theory of transport and magnetic relaxation in underdoped cuprates

Abstract

Based on recently proposed U(1)xSU(2) Chern-Simons gauge field theory, an interpretation of the transport and magnetic relaxation properties of underdoped cuprates is proposed, taking into account the short range antiferromagnetic order. The interplay of the doping-dependent spin gap (explicitly derived by us) effect and dissipation due to gauge fluctuations gives rise to a crossover from metallic to insulating behavior of conductivity as temperature decreases, in semi-quantitative agreement with experimental data. For the same reason the magnetic relaxation rate shows a maximum nearby. Various crossover temperatures related to spin gap effects are shown to be different manifestations of the same energy scale.

4 pages with three .eps figures

References in corpus (7)

• Truncation of a 2-dimensional Fermi surface due to quasiparticle gap formation at the saddle points
• Nodal Liquid Theory of the Pseudo-Gap Phase of High-Tc Superconductors
• Phenomenological interpretations of the ac Hall effect in the normal state of YBa2Cu3O7
• U(1)xSU(2) Chern--Simons gauge theory of underdoped cuprate superconductors
• Only Fermi-Liquids are Metals
• Magnetoresistance of YBa2Cu3O7 in the "cold spots" model
• $U(1)\times SU(2)$ gauge theory of underdoped cuprate superconductors

Cited by in corpus (9)

• Metal-insulator crossover in superconducting cuprates in strong magnetic fields
• Spin-charge gauge approach to metal-insulator crossover and transport properties in High-T${}_c$ cuprates
• In-Plane Conductivity Anisotropy in Underdoped Cuprates in the Spin-Charge Gauge Approach
• Transport Properties in the "Strange Metal Phase" of High Tc Cuprates: Spin-Charge Gauge Theory Versus Experiments
• Reliability Conditions in Quadrature Algorithms
• Self-localization of holes in a lightly doped Mott insulator
• Gauge approach to the specific heat in the normal state of cuprates
• Fractional statistics of charge carriers in the one- and two-dimensional t-J model. A hint for the cuprates?
• Spin-charge gauge symmetry: A way to tackle HTS cuprates?