Hoinkis, M. ; Sing, M. ; Schäfer, J. ; Klemm, M. ; Horn, S. ; Benthien, H. ; Jeckelmann, E. ; Saha-Dasgupta, T. ; Pisani, L. ; Valenti, R. ; Claessen, R. (2005) Electronic structure of the spin-½ quantum magnet TiOCl Physical Review B: Condensed Matter and Materials Physics, 72 (12). 125127_1-125127_12. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v72/i12/e125127
Related URL: http://dx.doi.org/10.1103/PhysRevB.72.125127
Abstract
We have studied the electronic structure of the spin-½ quantum magnet TiOCl by polarization-dependent momentum-resolved photoelectron spectroscopy. From that, we confirm the quasi-one-dimensional nature of the electronic structure along the crystallographic b axis and find no evidence for sizable phonon-induced orbital fluctuations as the origin for the noncanonical phenomenology of the spin-Peierls transition in this compound. A comparison of the experimental data to our own LDA+U and Hubbard model calculations reveals a striking lack of understanding regarding the quasi-one-dimensional electron dispersions in the normal state of this compound.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 65105 |
| Deposited On: | 15 Oct 2011 12:06 |
| Last Modified: | 15 Oct 2011 12:06 |
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