1997/05/15 by Hideo Yoshioka, Yoshikazu Suzumura · 1 citation
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.1143/jpsj.66.3962
jpsj style, 11 pages, 2 figures
arxiv created 1997/05/15 · openalex publication_date 1997/12/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We examine spin-Peierls systems in the presence of spin defects which are introduced by replacing magnetic ions Cu2+ with non-magnetic ones Zn2+ in CuGeO3. By using the action for the bosonized Hamiltonian, it is shown directly that the antiferromagnetic state induced by the spin defects coexists with the spin-Peierls states. Further the doping dependences of both transition temperature of spin-Peierls state and the spin gap have been calculated. The transition temperature of the present estimation shows good agreement quantitatively with that observed in Cu1-\de Zn_\de O3 for the region of the doping rate, \de<0.02.