论文标题

压力诱导的抗铁磁圆顶在重铁中$ yb_2pd_2in_ {1-x} sn_x $ system

Pressure-Induced Antiferromagnetic Dome in the Heavy-Fermion $Yb_2Pd_2In_{1-x}Sn_x$ System

论文作者

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.

论文摘要

在重毛皮系统中,$ yb_2pd_2in_ {1-x} sn_x $,晶体场分裂,昆多效应和ruderman-kattel-kasuya-yosida相互作用的相互作用可导致复杂的化学,压力,压力和磁性磁场图,并在完整的细节中进行探索。通过使用一系列技术,我们表明,即使温度以外的参数的适度变化也足以诱导这个高度易感的重毛顶家族中的多个量子关键转变。特别是,我们表明,在$ \ sim 10 $ kbar上方,静水压力不仅在低温下诱导抗铁磁相,而且可能导致YB磁矩和/或不同抗磁磁构型之间的竞争的重新定位。

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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