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Orbital-driven electronic structure changes and the resulting optical anisotropy of the quasi-two-dimensional spin gap compound La4Ru2O10
- Issue Date
- 21-Mar-2008
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.100, no.11
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 100
- Number
- 11
- ISSN
- 0031-9007
- Abstract
- We investigated the electronic response of the quasi-two-dimensional spin gap compound La4Ru2O10 using optical spectroscopy. We observed the drastic changes in the optical spectra as the temperature decreased, resulting in anisotropy in the electronic structure of the spin-singlet ground state. Using the orbital-dependent hopping analysis, we found that orbital ordering plays a crucial role in forming the spin gap state in the non-one-dimensional material.
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Related Researcher
- Lee, Yun Sang
- College of Natural Sciences (Department of Physics)