Commensurate antiferromagnetism inCePt2In7, a nearly two-dimensional heavy fermion system

Fragile antiferromagnetism in the heavy-fermion compound YbBiPt

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, τAFM = (121212), and ordered moments that align along the [1 1 1] direction of the cubic unit cell. We describe the scattering in terms of a two-Gaussian peak fit, which consists of a narrower component that appears below TN≈0.4 K and...

Evolution of Hall coefficient in two-dimensional heavy fermion CeCoIn5

Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan CEA-Grenoble, 38054 Grenoble cedex 9 France Department of Physiscs, Kyoto University, Kyoto 606-8502, Japan Laboratoire de phyque quantique (CNRS), ESPCI, 10 rue de Vauquelin, 75231 Paris, France Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan National Insti...

Two-Dimensional 3He: A Crucial System for Understanding Fermion Dynamics

A two-dimensional Dirac fermion microscope

The electron microscope has been a powerful, highly versatile workhorse in the fields of material and surface science, micro and nanotechnology, biology and geology, for nearly 80 years. The advent of two-dimensional materials opens new possibilities for realizing an analogy to electron microscopy in the solid state. Here we provide a perspective view on how a two-dimensional (2D) Dirac fermion...

Coexistence of antiferromagnetism and superconductivity near the quantum criticality of the heavy-fermion compound CeRhIn5.

We report a study on the interplay between antiferromagnetism (AFM) and superconductivity (SC) in a heavy-fermion compound CeRhIn5 under pressure P=1.75 GPa. The onset of the magnetic order is evidenced from a clear split of 115In nuclear quadrupole resonance spectrum due to the spontaneous internal field below the Néel temperature T(N)=2.5 K. Simultaneously, bulk SC below T(c)=2.0 K is demonst...