Quantum criticality near the upper critical field of Ce${}_2$PdIn${}_8$

Abstract

We report low-temperature specific heat measurements in magnetic fields up to 12 T applied parallel and perpendicular to the tetragonal c-axis of the heavy fermion superconductor Ce${}_2$PdIn${}_8$. In contrast to its quasi-two-dimensional (2D) relative CeCoIn${}_5$, the system displays an almost isotropic upper critical field. While there is no indication for a FFLO phase in Ce${}_2$PdIn${}_8$, the data suggest a smeared weak first-order superconducting transition close to $H_{c2}\approx 2$ T. The normal state electronic specific heat coefficient displays logarithmically divergent behavior, comparable to CeCoIn${}_5$ and in agreement with 2D quantum criticality of spin-density-wave type.

References in corpus (8)

• Nonvanishing Energy Scales at the Quantum Critical Point of CeCoIn5
• Pressure Study of Quantum Criticality in CeCoIn5
• Towards the identification of a quantum critical line in the (p, B) phase diagram of CeCoIn5
• Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase of CeCoIn5
• Dimensional crossover of quantum critical behavior in CeCoIn${}_5$
• Heavy-fermion superconductivity in Ce2PdIn8
• Anisotropic effect of Cd and Hg doping on Pauli limited superconductor CeCoIn${}_5$
• Anomalous doping effect on the superconducting state in CeCoIn${}_5$ at high magnetic fields

Cited by in corpus (10)

• Multiple quantum phase transitions and superconductivity in Ce-based heavy fermions
• Zero-field Quantum Critical Point in CeCoIn${}_5$
• Anomalous superfluid density in quantum critical superconductors
• Discovery of magnetic phase transitions in heavy-fermion superconductor CeRh${}_2$As${}_2$
• Quasi-two-dimensional Fermi surfaces of the heavy-fermion superconductor Ce${}_2$PdIn${}_8$
• Anomalous magnetotransport in the heavy-fermion superconductor Ce2PdIn8
• Nodal superconductivity and non-Fermi-liquid behavior in Ce2PdIn8 studied by 115In nuclear quadrupole resonance
• Fermi-surface topology of the heavy-fermion system Ce${}_2$PtIn${}_8$
• Coupled k-space structure of $d$-wave superconducting and magnetic orders induced by paramagnetic pair-breaking effect
• Strong-coupling approach to antiferromagnetic ordering driven by paramagnetic pair-breaking in d-wave superconducting phase