Magneto-thermal conductivity in multiferroic HoMnO$_3$

ORAL

Abstract

It is well known that multiferroic HoMnO$_3$ exhibits a rich phase H-T diagram. We have discovered that thermal conductivity of hexagonal HoMnO$_3$ shows an unconventional diversity of anomalies at low temperatures under external magnetic fields. In order to understand the origin of these anomalies, we have performed comprehensive characterization experiments on the multiferroic compound, including measurements of dielectric constant, DC and AC magnetic susceptibility, and polarization as functions of temperature and applied magnetic field.

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Authors

  • Young Jai Choi

  • Peter Sharma

    NHMFL, Los Alamos National Laboratory, National High Magnetic Field Laboratory-LANL

  • Sang-Wook Cheong

    Dept. of Physics \& Astronomy, Rutgers, Rutgers University, Department of Physics, Rutgers University, Rutgers University, USA, Rutgers Center for Emergent Materials and Department of Physics \& Astronomy, Rutgers University, Piscataway, New Jersey 08854, Rutgers Center for Emergent Materials