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Anomalous itinerant magnetism in single crystal Sr4Ru3O10: A thermodynamic and transport investigation

G. Cao·S. Chikara·J. W. Brill·Schlottmann
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Abstract

A thermodynamic and transport study of Sr4Ru3O10 as a function of temperature and magnetic field is presented. The central results include a growing specific heat C with increasing field B, a magnetic contribution to C/T at low temperatures proportional to -log(T), an abrupt jump and a peak in C/T at 2.90 T and 7 T for B||ab-plane and B||c-axis, respectively, and corresponding changes in the low T power laws of the resistivity. The novelty of this work lies in the fact that this system is strongly anisotropic displaying spontaneous ferromagnetism along the c-axis and an intralayer metamagnetic transition with a possibility of a nearby quantum critical point. The exotic behavior reflects new physics that is yet to be understood.

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G. Cao, S. Chikara, J. W. Brill, Schlottmann. 2007-03-14. Anomalous itinerant magnetism in single crystal Sr4Ru3O10: A thermodynamic and transport investigation. https://doi.org/10.1103/physrevb.75.024429

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