Direct Spectroscopic Evidence of Holons in a Quantum Antiferromagnetic Spin-1/2 Chain

Autor:	Hiroshi Eisaki, Zahid Hussain, Y. W. Li, Yi-De Chuang, D. M. Casa, M. Z. Hasan, P. Montano, T. Gog, S. Uchida, M. A. Beno
Rok vydání:	2003
Předmět:	Resonant inelastic X-ray scattering Physics Brillouin zone Condensed matter physics Condensed Matter::Strongly Correlated Electrons Statistical and Nonlinear Physics Charge (physics) Inelastic scattering Mott scattering Condensed Matter Physics Quantum Holon (physics) Spin-½
Zdroj:	International Journal of Modern Physics B. 17:3479-3483
ISSN:	1793-6578 0217-9792
DOI:	10.1142/s0217979203021241
Popis:	We report charge dynamics of a quantum spin-1/2 chain ( SrCuO 2) over the complete Brillouin zone using the momentum tunability of inelastic X-ray scattering. Excitations at the insulating gap edge are found to be highly dispersive. Observed dispersions are consistent with charge fluctuations involving holons unique to 1-D spin-1/2 quantum systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8b60d76f523629fa960cab671089889a https://doi.org/10.1142/s0217979203021241 Zobrazit plný text záznamu