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arXiv · 2007.04165

Pressure-induced suppression of ferromagnetism in CePd$_2$P$_2$

T. A. Elmslie·D. VanGennep·W. Bi·Y. Lai·S. T. Weir·Y. K. Vohra·R. E. Baumbach·J. J. Hamlin
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Abstract

The correlated electron material CePd$_2$P$_2$ crystallizes in the ThCr$_2$Si$_2$ structure and orders ferromagnetically at 29 K. Lai et al. [Phys. Rev. B 97, 224406 (2018)] found evidence for a ferromagnetic quantum critical point induced by chemical compression via substitution of Ni for Pd. However, disorder effects due to the chemical substitution interfere with a simple analysis of the possible critical behavior. In the present work, we examine the temperature - pressure - magnetic field phase diagram of single crystalline CePd$_2$P$_2$ to 25 GPa using a combination of resistivity, magnetic susceptibility, and x-ray diffraction measurements. We find that the ferromagnetism appears to be destroyed near 12 GPa, without any change in the crystal structure.

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T. A. Elmslie, D. VanGennep, W. Bi, Y. Lai, S. T. Weir, Y. K. Vohra, R. E. Baumbach, J. J. Hamlin. 2020-07-08. Pressure-induced suppression of ferromagnetism in CePd$_2$P$_2$. https://doi.org/10.1103/physrevb.102.125146

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