Dimerization ofCuGeO3in the Spin-Peierls State

Spin-Peierls and antiferromagnetic phases in Cu1−xZnxGeOMartin1, Hase2, Hirota3 et al. 1997Phys. Rev. BSelf Cite

“…Hirota et al 2 determined that as the dimerization occurs below T SP , the ( h 2 k l 2 ) superlattice peaks, with h and l odd and k any integer, appear. The intensities of the SP superlattice peaks decrease continuously as a function of increasing Zn content indicating a weakening SP dimerization.…”

“…2 The dimerized structure has a singlet ground state and a triplet excited state; singlet-to-triplet excitations were demonstrated by Nishi et al 3 using inelastic neutron scattering. CuGeO 3 is interesting not only because it is the first known inorganic spin-Peierls system, but also because evidence is mounting that it does not behave like a typical SP system.…”

Magnetic susceptibility in the spin-Peierls systemCuGeO3

“…The purpose of the present study is to describe the spin-Peierls transition in the linear Cu 2+ spin-1/2 chains in the inorganic compound CuGeO 3 which has been recently observed [1,2,3,4]. The transition temperature T c ≈ 14 K has been inferred from the rapid drop of the magnetic susceptibility towards zero, indicating the opening of an energy gap for singlet-triplet spin excitations.…”

Pressure dependence and non-universal effects of microscopic couplings on the spin-Peierls transition in CuGeO

“…1 denote the values of x · A α (x) at the experimentally determined spin-Peierls temperature T 0 SP = 14.4K for CuGeO 3 (see e.g. [24][25][26]). These values imply constants (cf.…”