RT Journal Article
SR Electronic
T1 Ubiquitous Interplay Between Charge Ordering and High-Temperature Superconductivity in Cuprates
JF Science
JO Science
FD American Association for the Advancement of Science
SP 393
OP 396
DO 10.1126/science.1243479
VO 343
IS 6169
A1 da Silva Neto, Eduardo H.
A1 Aynajian, Pegor
A1 Frano, Alex
A1 Comin, Riccardo
A1 Schierle, Enrico
A1 Weschke, Eugen
A1 Gyenis, András
A1 Wen, Jinsheng
A1 Schneeloch, John
A1 Xu, Zhijun
A1 Ono, Shimpei
A1 Gu, Genda
A1 Le Tacon, Mathieu
A1 Yazdani, Ali
YR 2014
UL http://science.sciencemag.org/content/343/6169/393.abstract
AB Besides superconductivity, copper-oxide high-temperature superconductors are susceptible to other types of ordering. We used scanning tunneling microscopy and resonant elastic x-ray scattering measurements to establish the formation of charge ordering in the high-temperature superconductor Bi2Sr2CaCu2O8+x. Depending on the hole concentration, the charge ordering in this system occurs with the same period as those found in Y-based or La-based cuprates and displays the analogous competition with superconductivity. These results indicate the similarity of charge organization competing with superconductivity across different families of cuprates. We observed this charge ordering to leave a distinct electron-hole asymmetric signature (and a broad resonance centered at +20 milli–electron volts) in spectroscopic measurements, indicating that it is likely related to the organization of holes in a doped Mott insulator.Copper-oxide superconductors have a complex electronic structure. A charge density order has been observed in two cuprate families; however, it has been unclear whether such an order exists in Bi-based compounds (see the Perspective by Morr). Comin et al. (p. 390, published online 19 December) and da Silva Neto et al. (p. 393, published online 19 December) address this question in single-layer and double-layer Bibased cuprates, respectively. For both families of materials, surface measurements by scanning tunneling spectroscopy agree with bulk measurements obtained through resonant elastic x-ray scattering, which suggests the formation of short-range correlations that modulate the charge density of the carriers over a range of dopings. Thus, charge ordering may represent a common characteristic of the major cuprate families.