Pressure-induced antiferromagnetic dome in the heavy-fermion Yb2Pd2In1xSnx system

G. Lamura, I. J. Onuorah, P. Bonfà, S. Sanna, Z. Shermadini, R. Khasanov, J.-C. Orain, C. Baines, F. Gastaldo, M. Giovannini, I. Čurlík, A. Dzubinska, G. Pristas, M. Reiffers, A. Martinelli, C. Ritter, B. Joseph, E. Bauer, R. De Renzi, and T. Shiroka
Phys. Rev. B 101, 054410 – Published 6 February 2020

Abstract

In the heavy-fermion system Yb2Pd2In1xSnx, the interplay of crystal-field splitting, Kondo effect, and Ruderman-Kittel-Kasuya-Yosida interactions leads to complex chemical-, pressure-, and magnetic-field phase diagrams still to be explored in full detail. By using a series of techniques, we show that even modest changes of parameters other than temperature are sufficient to induce multiple quantum-critical transitions in this highly susceptible heavy-fermion family. In particular, we show that, above 10 kbar, hydrostatic pressure not only induces an antiferromagnetic phase at low temperature, but it likely leads to a reorientation of the Yb magnetic moments and/or the competition among different antiferromagnetic configurations.

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  • Received 2 July 2019
  • Revised 19 December 2019
  • Accepted 13 January 2020

DOI:https://doi.org/10.1103/PhysRevB.101.054410

©2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

G. Lamura1,*, I. J. Onuorah2, P. Bonfà2,3, S. Sanna4, Z. Shermadini5, R. Khasanov5, J.-C. Orain5, C. Baines5, F. Gastaldo6, M. Giovannini6, I. Čurlík7, A. Dzubinska8, G. Pristas9, M. Reiffers7,9, A. Martinelli1, C. Ritter10, B. Joseph11, E. Bauer12, R. De Renzi2, and T. Shiroka5,13

  • 1CNR-SPIN, I-16152 Genova, Italy
  • 2Department of Mathematical, Physical and Computer Sciences, University of Parma, 43124 Parma, Italy
  • 3Centro S3, CNR-Istituto Nanoscienze, 41125 Modena, Italy
  • 4Department of Physics and Astronomy, University of Bologna, 40127 Bologna, Italy
  • 5Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland
  • 6Dipartimento di Chimica e Chimica Industriale, University of Genova, 16146 Genova, Italy
  • 7Faculty of Humanities and Natural Sciences, University of Prešov, SK 081 16 Prešov, Slovakia
  • 8CPM-TIP, University Pavol Jozef Safarik, 041 54 Kosice, Slovakia
  • 9Institute of Experimental Physics of the Slovak Academy of Sciences (IEP SAS), 040 01 Košice, Slovakia
  • 10Institut Laue-Langevin, 38042 Grenoble, France
  • 11GdR IISc-ICTP, Elettra-Sincrotrone, Basovizza, 34149 Trieste, Italy
  • 12Institute of Solid State Physics, TU Wien, A-1040 Wien, Austria
  • 13Laboratorium für Festkörperphysik, ETH-Hönggerberg, CH-8093 Zürich, Switzerland

  • *Corresponding author: gianrico.lamura@spin.cnr.it

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Vol. 101, Iss. 5 — 1 February 2020

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