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Electronic structure analysis of quasi-one-dimensional monophosphate tungsten bronzes



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Mascaraque Susunaga, Arantzazu y Roca, L. y Avila, J. y Drouard, S. y Guyo, H. y Asensio, M. C. (2002) Electronic structure analysis of quasi-one-dimensional monophosphate tungsten bronzes. Physical review B, 66 (11). ISSN 0163-1829

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URL Oficial: http://dx.doi.org/10.1103/PhysRevB.66.115104

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Synchrotron-radiation angle-resolved photoemission measurements were performed in the nondoped (PO_2)_4(WO_3)_4(WO_3)_4 compound in order to obtain a detailed picture of the electronic structure. This material is a low-dimensional compound due to the strong anisotropic structure built up with chains. The measurements were done at room temperature, probing different crystalline directions. Three states are observed in the vicinity of the Fermi level: one of them exhibits one-dimensional character while the other two are of two-dimensional nature. A very good agreement has been found between these electronic bands and theoretical calculations based on the hidden nesting mechanism.

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© 2002 The American Physical Society.
This work has been partially financed by the Spanish agency MCYT, under Grant No. MAT2002-03431. A.M. and L.R. thank Ministerio de Ciencia y Tecnología (Grant Nos. PF 00 51683701 and ES 99 50858888, respectively) for financial support.

Palabras clave:Density-Wave instability, Oxide bronzes, (PO2)(4)(WO3)(2M), Photoemission, (PO_2)_4(WO_3)2M Family, M=4
Materias:Ciencias > Física > Física de materiales
Código ID:28403
Depositado:17 Feb 2015 09:42
Última Modificación:17 Feb 2015 09:42

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