Stabilization of three-dimensional charge order in YBa2Cu3O6+x via epitaxial growth

被引：0
作者：
M. Bluschke
A. Frano
E. Schierle
D. Putzky
F. Ghorbani
R. Ortiz
H. Suzuki
G. Christiani
G. Logvenov
E. Weschke
R. J. Birgeneau
E. H. da Silva Neto
M. Minola
S. Blanco-Canosa
B. Keimer
机构：
[1] Max Planck Institute for Solid State Research,Helmholtz
[2] Wilhelm-Conrad-Röntgen-Campus BESSY II,Zentrum Berlin für Materialien und Energie
[3] University of California,Department of Physics
[4] Lawrence Berkeley National Laboratory,Advanced Light Source
[5] University of California San Diego,Department of Physics
[6] University of California,Department of Physics
[7] CIC nanoGUNE,IKERBASQUE
[8] Basque Foundation for Science,undefined
[9] Donostia International Physics Center,undefined
来源：
Nature Communications | / 9卷
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摘要：
Incommensurate charge order (CO) has been identified as the leading competitor of high-temperature superconductivity in all major families of layered copper oxides, but the perplexing variety of CO states in different cuprates has confounded investigations of its impact on the transport and thermodynamic properties. The three-dimensional (3D) CO observed in YBa2Cu3O6+x in high magnetic fields is of particular interest, because quantum transport measurements have revealed detailed information about the corresponding Fermi surface. Here we use resonant X-ray scattering to demonstrate 3D-CO in underdoped YBa2Cu3O6+x films grown epitaxially on SrTiO3 in the absence of magnetic fields. The resonance profiles indicate that Cu sites in the charge-reservoir layers participate in the CO state, and thus efficiently transmit CO correlations between adjacent CuO2 bilayer units. The results offer fresh perspectives for experiments elucidating the influence of 3D-CO on the electronic properties of cuprates without the need to apply high magnetic fields.
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