论文信息 - Spin-Peierls transition in CuGeO3: Electron paramagnetic resonance study

Spin-Peierls transition in CuGeO3: Electron paramagnetic resonance study

Measurements of electron paramagnetic resonance (EPR) at 9 and 35 GHz between 2 and 300 K in single crystals and powder samples of CuGeO3 are presented. Below 14 K a large decrease in the intensity of the Cu2+ EPR signal is observed. The data can be interpreted as due to a spin‐Peierls transition. However, an alternative interpretation in terms of a simple structural transition cannot be ruled out. An opening of an energy gap of ∼25 K is calculated from the analysis.

S. Cheong | B. Aktaş | S. Oseroff | A. Fondado | Z. Fisk

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