Jun Han Lee

ORCID: 0000-0002-7974-084X
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About
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Research Areas
  • Multiferroics and related materials
  • Advanced Condensed Matter Physics
  • Topological Materials and Phenomena
  • Physics of Superconductivity and Magnetism
  • Perovskite Materials and Applications
  • Magnetic and transport properties of perovskites and related materials
  • Advanced Thermodynamics and Statistical Mechanics
  • Theoretical and Computational Physics
  • Surface and Thin Film Phenomena
  • Neural Networks and Applications

Ulsan National Institute of Science and Technology
2022-2024

Abstract The thermal Hall effect in magnetic insulators has been considered a powerful method for examining the topological nature of charge-neutral quasiparticles such as magnons. Yet, unlike kagome system, triangular lattice received less attention studying because scalar spin chirality cancels out between adjacent triangles. However, cancellation cannot be perfect if is distorted. Here, we report that trimerized multiferroic hexagonal manganite YMnO 3 produces highly unusual under an...

10.1038/s41467-023-44448-9 article EN cc-by Nature Communications 2024-01-04

Kitaev physics has recently attracted attention in condensed matter for its anticipated quantum spin liquid (QSL) state. The thermal transport measurement is crucial probing the features of charge-neutral quasiparticles. In this letter, we report a significant Hall effect ${\mathrm{Na}}_{2}{\mathrm{Co}}_{2}\mathrm{Te}{\mathrm{O}}_{6}$ (NCTO), QSL candidate, when magnetic field applied along out-of-plane direction honeycomb plane. conductivity (${\ensuremath{\kappa}}_{xx}$) and...

10.1103/physrevb.106.l081116 article EN Physical review. B./Physical review. B 2022-08-18

The coupling between phonon and magnon is ubiquitous in magnetic materials plays a crucial role many aspects of properties, most notably spintronics. Yet, this academically technologically interesting problem still poses severe challenge to general understanding the issue certain materials. We report that Ni3TeO6 exhibits clear evidence significant magnon-phonon both longitudinal thermal conductivity ($\kappa_{xx}$) Hall coefficient ($\kappa_{xy}$). Debye-Callaway model, phenomenological...

10.1103/physrevb.106.144417 article EN Physical review. B./Physical review. B 2022-10-17

The coupling between phonon and magnon is ubiquitous in magnetic materials plays a crucial role many aspects of properties, most notably spintronics. Yet, this academically technologically interesting problem still poses severe challenge to general understanding the issue certain materials. We report that Ni3TeO6 exhibits clear evidence significant magnon-phonon both longitudinal thermal conductivity ($κ_{xx}$) Hall coefficient ($κ_{xy}$). Debye-Callaway model, phenomenological description...

10.48550/arxiv.2206.00837 preprint EN cc-by arXiv (Cornell University) 2022-01-01

The thermal Hall effect in magnetic insulators has been considered a powerful method for examining the topological nature of charge-neutral quasiparticles such as magnons. Yet, unlike kagome system, triangular lattice received less attention studying because scalar spin chirality cancels out between adjacent triangles. However, cancellation cannot be perfect if is distorted, which could open possibility non-zero effect. Here, we report that trimerized multiferroic hexagonal manganite...

10.48550/arxiv.2311.11527 preprint EN cc-by arXiv (Cornell University) 2023-01-01
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