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Ghiringhelli G, Le Tacon M, Minola M, et al. Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x). Science. 2012;337(6096):821-5doi: 10.1126/science.1223532.
Ghiringhelli, G., Le Tacon, M., Minola, M., Blanco-Canosa, S., Mazzoli, C., Brookes, N. B., De Luca, G. M., Frano, A., Hawthorn, D. G., He, F., Loew, T., Moretti Sala, M., Peets, D. C., Salluzzo, M., Schierle, E., Sutarto, R., Sawatzky, G. A., Weschke, E., Keimer, B., & Braicovich, L. (2012). Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x). Science (New York, N.Y.), 337(6096), 821-5. https://doi.org/10.1126/science.1223532
Ghiringhelli, G, et al. "Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)." Science (New York, N.Y.) vol. 337,6096 (2012): 821-5. doi: https://doi.org/10.1126/science.1223532
Ghiringhelli G, Le Tacon M, Minola M, Blanco-Canosa S, Mazzoli C, Brookes NB, De Luca GM, Frano A, Hawthorn DG, He F, Loew T, Moretti Sala M, Peets DC, Salluzzo M, Schierle E, Sutarto R, Sawatzky GA, Weschke E, Keimer B, Braicovich L. Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x). Science. 2012 Aug 17;337(6096):821-5. doi: 10.1126/science.1223532. Epub 2012 Jul 12. PMID: 22798406.
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Science. 2012 Aug 17;337(6096):821-5. doi: 10.1126/science.1223532. Epub 2012 Jul 12.

Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x).

Science (New York, N.Y.)

G Ghiringhelli, M Le Tacon, M Minola, S Blanco-Canosa, C Mazzoli, N B Brookes, G M De Luca, A Frano, D G Hawthorn, F He, T Loew, M Moretti Sala, D C Peets, M Salluzzo, E Schierle, R Sutarto, G A Sawatzky, E Weschke, B Keimer, L Braicovich

Affiliations

  1. CNR-SPIN, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, and Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy. [email protected]

PMID: 22798406 DOI: 10.1126/science.1223532

Abstract

The concept that superconductivity competes with other orders in cuprate superconductors has become increasingly apparent, but obtaining direct evidence with bulk-sensitive probes is challenging. We have used resonant soft x-ray scattering to identify two-dimensional charge fluctuations with an incommensurate periodicity of ~3.2 lattice units in the copper-oxide planes of the superconductors (Y,Nd)Ba(2)Cu(3)O(6+)(x), with hole concentrations of 0.09 to 0.13 per planar Cu ion. The intensity and correlation length of the fluctuation signal increase strongly upon cooling down to the superconducting transition temperature (T(c)); further cooling below T(c) abruptly reverses the divergence of the charge correlations. In combination with earlier observations of a large gap in the spin excitation spectrum, these data indicate an incipient charge density wave instability that competes with superconductivity.

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