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Metallic density of states in the spin liquid RuCl<sub>3</sub>.

POSTER

Abstract

We use resonant line-width spectroscopy and SiN nanocalorimeters to measure specific heat of a small (~1μg mass) RuCl3 sample. The low-temperature limit of C/T is metallic-like, with an extrapolated Sommerfeld coefficient corresponding to a density of states of about 100 mJ/molK2, consistent with Majorana fermions of about 10meV bandwidth. We discuss the field- and angular evolution of this metallic density of states. Finally we examine thermodynamics of the AFM boundary, as well as AFM spin waves in RuCl3.

Presenters

  • Arkady Shekhter

    National High Magnetic Field Laboratory, DC Facility, National High Magnetic Field Laboratory, Natl High Magnetic Field Lab, NHMFL

Authors

  • Andreas Rydh

    stockholm university, university of stockholm, Stockholm University, Physics, Stockholm University

  • Ali Bangura

    Natl High Magnetic Field Lab

  • Kimberly Modic

    Max Planck Institute for Chemical Physics of Solids, Max Planck Dresden, Max Planck Institute, max planck dresden

  • Gregory Scott Boebinger

    National High Magnetic Field Laboratory, Natl High Magnetic Field Lab, NHMFL

  • Brad J Ramshaw

    Cornell University, Cornell university, Cornell

  • Ross McDonald

    Los Alamos National Laboratory, physics, los alamos national lab, NHMFL-PFF, Los Alamos National Laboratory, Los Alamos Natl. Lab, Los Alamos Natl Lab, National High Magnetic Field Laboratory, LANL

  • Arkady Shekhter

    National High Magnetic Field Laboratory, DC Facility, National High Magnetic Field Laboratory, Natl High Magnetic Field Lab, NHMFL