Orbital-driven electronic structure changes and the resulting optical anisotropy of the quasi-two-dimensional Spin gap compound La4Ru2O10

Soonjae Moon, W. S. Choi, S. J. Kim, Y. S. Lee, P. G. Khalifah, D. Mandrus, T. W. Noh

Research output: Contribution to journalArticle

10 Citations (Scopus)

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.

Original languageEnglish
Article number116404
JournalPhysical Review Letters
Volume100
Issue number11
DOIs
StatePublished - 2008 Mar 21

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electronic structure
orbitals
anisotropy
optical spectrum
ground state
electronics
spectroscopy
temperature

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Moon, Soonjae ; Choi, W. S. ; Kim, S. J. ; Lee, Y. S. ; Khalifah, P. G. ; Mandrus, D. ; Noh, T. W. / Orbital-driven electronic structure changes and the resulting optical anisotropy of the quasi-two-dimensional Spin gap compound La4Ru2O10. In: Physical Review Letters. 2008 ; Vol. 100, No. 11.
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Orbital-driven electronic structure changes and the resulting optical anisotropy of the quasi-two-dimensional Spin gap compound La4Ru2O10. / Moon, Soonjae; Choi, W. S.; Kim, S. J.; Lee, Y. S.; Khalifah, P. G.; Mandrus, D.; Noh, T. W.

In: Physical Review Letters, Vol. 100, No. 11, 116404, 21.03.2008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Orbital-driven electronic structure changes and the resulting optical anisotropy of the quasi-two-dimensional Spin gap compound La4Ru2O10

AU - Moon, Soonjae

AU - Choi, W. S.

AU - Kim, S. J.

AU - Lee, Y. S.

AU - Khalifah, P. G.

AU - Mandrus, D.

AU - Noh, T. W.

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