In the heavy-fermion system Yb2Pd2In1−xSnx, 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.

Pressure-induced antiferromagnetic dome in the heavy-fermion Yb2Pd2In1−xSnx system / Lamura, G.; Onuorah, I. J.; Bonfà, P.; Sanna, S.; Shermadini, Z.; Khasanov, R.; Orain, J. -C.; Baines, C.; Gastaldo, F.; Giovannini, M.; Čurlík, I.; Dzubinska, A.; Pristas, G.; Reiffers, M.; Martinelli, A.; Ritter, C.; Joseph, B.; Bauer, E.; De Renzi, R.; Shiroka, T.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 101:5(2020), p. 054410. [10.1103/PhysRevB.101.054410]

Pressure-induced antiferromagnetic dome in the heavy-fermion Yb2Pd2In1−xSnx system

Onuorah, I. J.;Bonfà, P.;Sanna, S.;De Renzi, R.;Shiroka, T.
2020

Abstract

In the heavy-fermion system Yb2Pd2In1−xSnx, 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.
Pressure-induced antiferromagnetic dome in the heavy-fermion Yb2Pd2In1−xSnx system / Lamura, G.; Onuorah, I. J.; Bonfà, P.; Sanna, S.; Shermadini, Z.; Khasanov, R.; Orain, J. -C.; Baines, C.; Gastaldo, F.; Giovannini, M.; Čurlík, I.; Dzubinska, A.; Pristas, G.; Reiffers, M.; Martinelli, A.; Ritter, C.; Joseph, B.; Bauer, E.; De Renzi, R.; Shiroka, T.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 101:5(2020), p. 054410. [10.1103/PhysRevB.101.054410]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2871905
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