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Field-controlled phase separation at the impurity-induced magnetic ordering in the spin-Peierls magnet CuGeO3

V. N. Glazkov·A. I. Smirnov·H. -A. Krug von Nidda·A. Loidl·K. Uchinokura·T. Masuda
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Abstract

The fraction of the paramagnetic phase surviving at the impurity-induced antiferromagnetic order transition of the doped spin-Peierls magnet Cu(1-x)Mg(x)GeO3 (x < 5%) is found to increase with an external magnetic field. This effect is qualitatively explained by the competition of Zeeman energy and exchange interaction between local antiferromagnetic clusters

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V. N. Glazkov, A. I. Smirnov, H. -A. Krug von Nidda, A. Loidl, K. Uchinokura, T. Masuda. 2004-04-29. Field-controlled phase separation at the impurity-induced magnetic ordering in the spin-Peierls magnet CuGeO3. https://doi.org/10.1103/physrevlett.94.057205

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