Controlling symmetry of spin-orbit entangled pseudospin state through uniaxial strain
SCOPUS
- Title
- Controlling symmetry of spin-orbit entangled pseudospin state through uniaxial strain
- Authors
- KIM, JONG-WOO; CHUN, SAE HWAN; CHOI, YONG; KIM, BUMJOON; UPTON, MARY H.; RYAN, Phil J.
- Date Issued
- 2020-08
- Publisher
- American Physical Society
- Abstract
- In layer-structured Sr2IrO4, strong crystal electric field and spin-orbit coupling result in an intriguing spin-orbit entangled J(eff) = 1/2 state, resembling the spin S = 1/2 state of high-temperature superconducting cuprates. Our study unravels the intricate relationship between the lattice and the pseudospin interactions using uniaxial strain. Applied along the [1 1 0] direction, a compressive strain does not induce any effect. In contrast, the strain along [1 0 0] triggers a dramatic detwinning of the magnetic domains bringing the system to a single domain at around 0.04% strain. The strain driven detwinning rate is temperature independent showing that it does not exhibit a spontaneous orthorhombic lattice distortion driven by the pseudo-Jahn-Teller effect.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/104944
- DOI
- 10.1103/PhysRevB.102.054420
- ISSN
- 2469-9969
- Article Type
- Article
- Citation
- Physical Review B, vol. 102, no. 5, 2020-08
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- There are no files associated with this item.
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