Magnetic, thermal and transport properties of Cd doped CeIn${}_3$

Abstract

We have investigated the effect of Cd substitution on the archetypal heavy fermion antiferromagnet CeIn${}_3$ via magnetic susceptibility, specific heat and resistivity measurements. The suppression of the Neel temperature, T${}_N$, with Cd doping is more pronounced than with Sn. Nevertheless, a doping induced quantum critical point does not appear to be achievable in this system. The magnetic entropy at $T_N$ and the temperature of the maximum in resistivity are also systematically suppressed with Cd, while the effective moment and the Curie-Weiss temperature in the paramagnetic state are not affected. These results suggest that Cd locally disrupts the AFM order on its neighboring Ce moments, without affecting the valence of Ce. Moreover, the temperature dependence of the specific heat below $T_N$ is not consistent with 3D magnons in pure as well as in Cd-doped CeIn${}_3$, a point that has been missed in previous investigations of CeIn${}_3$ and that has bearing on the type of quantum criticality in this system.

References in corpus (9)

• Reversible Tuning of the Heavy Fermion Ground State in CeCoIn${}_5$
• Interacting Antiferromagnetic Droplets in Quantum Critical CeCoIn_5
• Quantum criticality in the cubic heavy-fermion system CeIn_{3-x}Sn_x
• Fermi surface of CeIn3 above the Neel critical field
• Heavy holes: precursor to superconductivity in antiferromagnetic CeIn3
• Pressure-induced unconventional superconductivity in the heavy-fermion antiferromagnet CeIn3: An 115In-NQR study under pressure
• Local structure and site occupancy of Cd and Hg substitutions in CeTIn5 (T=Co, Rh, Ir)
• Antiferromagnetism and hot spots in CeIn${}_3$
• Non-local Magnetic Field-tuned Quantum Criticality in Cubic CeIn_{3-x}Sn_x (x=~0.25)

Cited by in corpus (4)

• Magnetic field tuning of antiferromagnetic Yb${}_3$Pt${}_4$
• Direct observation of heavy quasiparticles in the Kondo lattice CeIn3
• Probing the localized to itinerant behavior of the 4f electron in CeIn3-xSnx by Gd3+ electron spin resonance
• Excess heat capacity in magnetically ordered Ce heavy fermion metals