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Title: Observation of a spin-Peierls transition in a Heisenberg antiferromagnetic linear-chain system. [TTFCuS/sub 4/C/sub 4/(CF/sub 3/)/sub 4/]

Journal Article · · Phys. Rev. Lett.; (United States)

Magnetic-susceptibility and EPR measurements are reported which provide the first unambiguous evidence for a spin-Peierls transition in a system of linear one-dimensional antiferromagnetic Heisenberg chains. The material studied is TTFCuS/sub 4/C/sub 4/(CF/sub 3/)/sub 4/ (TTF stands for tetrathiafulvalinium). At 12 K, the spin-lattice system undergoes a second-order phase transition to a singlet ground state. (auth)

OSTI ID:
7358678
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 35:11
Country of Publication:
United States
Language:
English