Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor

被引：140

作者：

Arpaia, R. ^{[1
,2
]}

Caprara, S. ^{[3
,4
]}

Fumagalli, R. ^{[1
]}

De Vecchi, G. ^{[1
]}

Peng, Y. Y. ^{[1
,9
]}

Andersson, E. ^{[2
]}

Betto, D. ^{[5
]}

De Luca, G. M. ^{[6
,7
]}

Brookes, N. B. ^{[5
]}

Lombardi, F. ^{[2
]}

Salluzzo, M. ^{[7
]}

Braicovich, L. ^{[1
,5
]}

Di Castro, C. ^{[3
,4
]}

Grilli, M. ^{[3
,4
]}

Ghiringhelli, G. ^{[1
,8
]}

机构：

[1] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

[2] Chalmers Univ Technol, Dept Microtechnol & Nanosci, Quantum Device Phys Lab, SE-41296 Gothenburg, Sweden

[3] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[4] CNR ISC, I-00185 Rome, Italy

[5] ESRF, European Synchrotron, F-38043 Grenoble, France

[6] Univ Napoli Federico II, Dipartimento Fis E Pancini, Complesso Monte St Angelo, I-80126 Naples, Italy

[7] CNR SPIN, Complesso Monte St Angelo, I-80126 Naples, Italy

[8] Politecn Milan, CNR SPIN, Dipartimento Fis, I-20133 Milan, Italy

[9] Peking Univ, Sch Phys, Int Ctr Quantum Mat, CN-100871 Beijing, Peoples R China

来源：

SCIENCE | 2019年 / 365卷 / 6456期

基金：

瑞典研究理事会;

关键词：

D-WAVE SUPERCONDUCTIVITY; X-RAY-SCATTERING; LIQUID BEHAVIOR; NORMAL-STATE; ORDER; TEMPERATURE; INHOMOGENEITY; SEPARATION;

D O I：

10.1126/science.aav1315

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Charge density modulations have been observed in all families of high-critical temperature (T-c) superconducting cuprates. Although they are consistently found in the underdoped region of the phase diagram and at relatively low temperatures, it is still unclear to what extent they influence the unusual properties of these systems. Using resonant x-ray scattering, we carefully determined the temperature dependence of charge density modulations in YBa2Cu3O7-delta and Nd1+xBa2-xCu3O7-delta for several doping levels. We isolated short-range dynamical charge density fluctuations in addition to the previously known quasi-critical charge density waves. They persist up to well above the pseudogap temperature T*, are characterized by energies of a few milli-electron volts, and pervade a large area of the phase diagram.

引用

页码：906 / +

页数：34

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