Geometrical frustration induced quantum phase transition in CeRh1-xPdxSn: Low energy E/T scaling
The quasi-kagome Kondo lattice CeRhSn exhibits intriguing properties, which ascribe to quantum criticality induced by geometrical frustration. Divergent Gr¿¹neisen ratios provide evidence for a zero-field quantum critical point (QCP). The anisotropy of thermal expansion, which only displays quantum critical behavior along a-axis and not along the c-axis, indicates that geometrical frustration induced QCP in this system. Our recent heat capacity study of CeRh1-xPdxSn series reveals magnetic transitions for x ¡İ 0.2 (TN=0.2K for x=0.2 and 2.5K for x=0.75), but non-Fermi-liquid type behavior down to 0.09K. We have found that the weak NFL/QCP state of CeRhSn is easily transformed into strong and clear NFL/QCP state with larger C/T in x=0.1 and finally to an AFM ordered state with Pd doping x ¡İ 0.2. For further study of NFL/QCP of CeRh1-xPdxSn system, we proposed to investigate low energy E/T scaling in x=0.1 and spin waves in 0.3 and 0.75.
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D.T. Adroja; KOZA Michael Marek and TAKABATAKE T.. (2017). Geometrical frustration induced quantum phase transition in CeRh1-xPdxSn: Low energy E/T scaling. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1552
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