Ferromagnetic quantum phase transition in compressed CePd<sub>2</sub>P<sub>2</sub>
ORAL
Abstract
The correlated electron material CePd2P2 crystallizes in the ThCr2Si2 structure and orders ferromagnetically at 28 K. Recently, Y. Lai et al. [1] found evidence for a ferromagnetic quantum critical point induced by chemical compression via substitution of Ni for Pd. In this present work, we examine the T-H-p phase diagram of single crystalline CePd2P2 to 25 GPa using a combination of resistivity, magnetic susceptibility, and x-ray diffraction measurements. We find that the ferromagnetism is destroyed near 20 GPa. These results are compared to similar experiments on the ferromagnets CeTiGe3 [2] and LaCrGe3 [3].
[1] Y. Lai, S. E. Bone, S. Minasian, M. G. Ferrier, J. Lezama-Pacheco, V. Mocko, A. S. Ditter, S. A. Kozimor, G. T. Seidler, W. L. Nelson, Y.-C. Chiu, K. Huang, W. Potter, D. Graf, T. E. Albrecht-Schmitt,and R. E.Baumbach, Phys. Rev. B 97(2018).
[2] V. Taufour, U. S. Kaluarachchi, S. L. Bud'ko, and P. C. Canfield, Physica B 536, 483 (2018).
[3] U. S. Kaluarachchi, S. L. Bud’ko, P. C. Canfield, and V. Taufour, Nat. Commun. 8, 546 (2017).
[1] Y. Lai, S. E. Bone, S. Minasian, M. G. Ferrier, J. Lezama-Pacheco, V. Mocko, A. S. Ditter, S. A. Kozimor, G. T. Seidler, W. L. Nelson, Y.-C. Chiu, K. Huang, W. Potter, D. Graf, T. E. Albrecht-Schmitt,and R. E.Baumbach, Phys. Rev. B 97(2018).
[2] V. Taufour, U. S. Kaluarachchi, S. L. Bud'ko, and P. C. Canfield, Physica B 536, 483 (2018).
[3] U. S. Kaluarachchi, S. L. Bud’ko, P. C. Canfield, and V. Taufour, Nat. Commun. 8, 546 (2017).
*Work supported by NSF CAREER DMR-1453752 and NSF NHMFL UCGP. A portion of this work was performed at the NHMFL supported by NSF DMR-1157490, DMR-1644779, and the state of Florida. R.E.B., Y.L., D.G., supported in part by DOE DE-SC0016568.
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Presenters
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Timothy A Elmslie
- Department of Physics, University of Florida