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Anomalous Paramagnetic Effects in the Mixed State of LuNi2B2C

Tuson Park·Y. Sun·M. B. Salamon·A. T. Malinowski·M. F. Hundley·Eun Mi Choi·Heon Jung Kim·Sung-Ik Lee·P. C. Canfield·V. G. Kogan·J. D. Thompson
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Abstract

Anomalous paramagnetic effects in dc magnetization were observed in the mixed state of LuNi2B2C, unlike any reported previously. It appears as a kink-like feature for H > 30 kOe and becomes more prominent with increasing field. A specific heat jump at the corresponding temperature suggests that the anomaly is due to a true bulk transition. A magnetic flux transition from a square to an hexagonal lattice is consistent with the anomaly.

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Tuson Park, Y. Sun, M. B. Salamon, A. T. Malinowski, M. F. Hundley, Eun Mi Choi, Heon Jung Kim, Sung-Ik Lee, P. C. Canfield, V. G. Kogan, J. D. Thompson. 2005-02-21. Anomalous Paramagnetic Effects in the Mixed State of LuNi2B2C. https://doi.org/10.1103/physrevb.71.054511

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