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Lee, Jun Hee
Quantum Materials for Energy Conversion Lab
Research Interests
  • Quantum simulation, photocatalyst, fuel cell, Li battery, materials genome, supercomputer

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Competing magnetostructural phases in a semiclassical system

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Title
Competing magnetostructural phases in a semiclassical system
Author
O'Neal, Kenneth R.Lee, Jun HeeKim, Maeng-SukManson, Jamie L.Liu, ZhenxianFishman, Randy S.Musfeldt, Janice L.
Issue Date
2017-11
Publisher
NATURE PUBLISHING GROUP
Citation
NPJ QUANTUM MATERIALS, v.2, pp.65
Abstract
The interplay between charge, structure, and magnetism gives rise to rich phase diagrams in complex materials with exotic properties emerging when phases compete. Molecule-based materials are particularly advantageous in this regard due to their low energy scales, flexible lattices, and chemical tunability. Here, we bring together high pressure Raman scattering, modeling, and first principles calculations to reveal the pressure-temperature-magnetic field phase diagram of Mn[N(CN)2]2. We uncover how hidden soft modes involving octahedral rotations drive two pressure-induced transitions triggering the low → high magnetic anisotropy crossover and a unique reorientation of exchange planes. These magnetostructural transitions and their mechanisms highlight the importance of spin-lattice interactions in establishing phases with novel magnetic properties in Mn(II)-containing systems.
URI
https://scholarworks.unist.ac.kr/handle/201301/23907
URL
https://www.nature.com/articles/s41535-017-0065-0
DOI
10.1038/s41535-017-0065-0
ISSN
2397-4648
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ECHE_Journal Papers
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