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arXiv · 2002.03900

Pressure-Induced Antiferromagnetic Dome in the Heavy-Fermion $Yb_2Pd_2In_{1-x}Sn_x$ 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·T. Shiroka
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Abstract

In the heavy-fermion system $Yb_2Pd_2In_{1-x}Sn_x$, 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 $\sim 10$ 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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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, T. Shiroka. 2020-02-10. Pressure-Induced Antiferromagnetic Dome in the Heavy-Fermion $Yb_2Pd_2In_{1-x}Sn_x$ System. https://doi.org/10.1103/physrevb.101.054410

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