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Quasi-one-dimensional spin chains in CuSiO3: an EPR study

J. Sichelschmidt·A. Loidl·M. Baenitz·H. H. Otto·C. Geibel·F. Steglich
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Abstract

Temperature dependent EPR studies were performed on a single crystal of CuSiO3.This recently discovered compound is isostructural with the spin-Peierls compound CuGeO3. The EPR signals show different characteristics than those of CuGeO3 and aredue to Cu2+ spins located along quasi one-dimensional chains. For T > 8.2K the spin susceptibility closely follows the predictions of a S=1/2 one-dimensional Heisenberg antiferromagnet with J/kB = 21K. Below T = 8.2K the spin susceptibility immediately drops to zero indicating long range magnetic order.

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J. Sichelschmidt, A. Loidl, M. Baenitz, H. H. Otto, C. Geibel, F. Steglich. 2000-05-22. Quasi-one-dimensional spin chains in CuSiO3: an EPR study. https://arxiv.org/abs/cond-mat/0005346

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