Phase diagram of disordered spin-Peierls systems

Abstract

We study the competition between the spin-Peierls and the antiferromagnetic ordering in disordered quasi-one-dimensional spin systems. We obtain the temperature vs disorder-strength phase diagram, which qualitatively agrees with recent experiments on doped CuGeO_3.

4 pages, revtex, epsf, 2 Postscript figures

References in corpus (2)

• Coexistence of antiferromagnetism and dimerization in a disordered spin-Peierls model: exact results
• Instanton in Disordered Peierls Systems

Cited by in corpus (16)

• Magnetic light scattering in low-dimensional quantum spin systems
• The first-order phase transition between dimerized-antiferromagnetic and uniform-antiferromagnetic phases in Cu_(1-x)M_xGeO_3
• Antiferromagnetism in doped anisotropic two-dimensional spin-Peierls systems
• Separation of the magnetic phases at the Néel point in the diluted spin-Peierls magnet CuGeO3
• Quantum phase transitions in antiferromagnets and superfluids
• Thermodynamic properties of the periodic nonuniform spin-1/2 isotropic XY chains in a transverse field
• Reentrant Spin-Peierls Transition in Mg-Doped CuGeO_3
• Quantum critical point in CuGeO3 doped with magnetic impurities
• Effects of Disorder on Coexistence and Competition between Superconducting and Insulating States
• Effect of structural distortions on the magnetism of doped spin-Peierls CuGeO3
• Quantum critical behavior induced by Mn impurity in CuGeO3
• Bond-randomness-induced Neel order in weakly coupled antiferromagnetic spin chains
• Dynamics of weakly coupled random antiferromagnetic quantum spin chains
• Neel to spin-Peierls transition in a quasi-1D Heisenberg model coupled to bond phonons
• Instanton calculation of the density of states of disordered Peierls chains
• Re-entrant Behavior and Gigantic Response in Disordered Spin-Peierls System