Title

Competing magnetostructural phases in a semiclassical system

Source Publication (e.g., journal title)

npj Quantum Materials

Authors

Kenneth R. O'Neal, University of Tennessee, KnoxvilleFollow
Jun Hee Lee, Ulsan National Institute of Science and Technology, Korea
Maeng-Suk Kim, Ulsan National Institute of Science and Technology, Korea
Jamie L. Manson, Eastern Washington University
Zhenxian Liu, George Washington University
Randy S. Fishman, Oak Ridge National Laboratory
Janice L. Musfeldt, University of Tennessee, KnoxvilleFollow

Document Type

Article

Publication Date

11-22-2017

DOI

10.1038/s41535-017-0065-0

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.

Comments

This article was published openly thanks to the University of Tennessee Open Publishing Support Fund.

Licensed under a Creative Commons Attribution 4.0 International license.

Recommended Citation

Kenneth R. O’Neal, Jun Hee Lee, Maeng-Suk Kim, Jamie L. Manson, Zhenxian Liu, Randy S. Fishman & Janice L. Musfeldt. “Competing Magnetostructural Phases in a Semiclassical System.” npj Quantum Materials 2 (2017). https://doi.org/10.1038/s41535-017-0065-0.

Submission Type

Publisher's Version