Ferromagnetic quantum phase transition in compressed CePd2P2

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).

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Presenters

  • Timothy A Elmslie

    Department of Physics, University of Florida

Authors

  • Timothy A Elmslie

    Department of Physics, University of Florida

  • Derrick VanGennep

    Department of Physics, University of Florida, University of Florida

  • You Lai

    National High Magnetic Field Laboratory, Florida State University, NHMFL-FSU, National High Magnetic Field Laboratory and Florida State University

  • David E Graf

    National High Magnetic Field Laboratory, National High Magnetic Field Lab, Tallahassee, FL, National High Magnetic Field Laboratory and Department of Physics, Florida State University, National High Magnetic Field Lab, NHMFL, Tallahassee, FL, United States, Florida State University, National High Magnetic Field Laboratory, Florida State University, NHMFL-FSU, National High Magnetic Field Laboratory and Florida State University, NHMFL

  • Ryan Baumbach

    National High Magnetic Field Laboratory, Florida State University, Florida State University, NHMFL-FSU, National High Magnetic Field Laboratory, National High Magnetic Field Laboratory and Florida State University, National High Magnetic Field Laboratory - Florida State University, NHMFL

  • James J. Hamlin

    Department of Physics, University of Florida