Coupling between dynamic magnetic and charge-order correlations in the cuprate superconductor Nd2-xCexCuO4

被引：38

作者：

da Silva Neto, E. H. ^{[1
,2
,3
]}

Minola, M. ^{[3
]}

Yu, B. ^{[4
]}

Tabis, W. ^{[5
,6
,7
]}

Bluschke, M. ^{[3
,8
]}

Unruh, D. ^{[1
]}

Suzuki, H. ^{[3
]}

Li, Y. ^{[4
]}

Yu, G. ^{[4
]}

Betto, D. ^{[9
]}

Kummer, K. ^{[9
]}

Yakhou, F. ^{[9
]}

Brookes, N. B. ^{[9
]}

Le Tacon, M. ^{[3
,10
]}

Greven, M. ^{[4
]}

Keimer, B. ^{[3
]}

Damascelli, A. ^{[2
,11
]}

机构：

[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[2] Univ British Columbia, Quantum Matter Inst, Vancouver, BC V6T 1Z4, Canada

[3] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany

[4] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[5] CNRS UPR 3228, Lab Natl Champs Magnet Intenses, F-31400 Toulouse, France

[6] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

[7] TU Wien, Inst Solid State Phys, A-1040 Vienna, Austria

[8] Helmholtz Zentrum Berlin Mat & Energie, BESSY 2, Albert Einstein Str 15, D-12489 Berlin, Germany

[9] European Synchrotron Radiat Facil, 71 Ave Martyrs,CS40220, F-38043 Grenoble 9, France

[10] Karlsruher Inst Technol, Inst Festkorperphys, D-76201 Karlsruhe, Germany

[11] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 16期

基金：

加拿大自然科学与工程研究理事会; 欧洲研究理事会; 加拿大创新基金会;

关键词：

DENSITY-WAVE ORDER; HIGH-TEMPERATURE SUPERCONDUCTORS; QUASI-PARTICLE STATES; BI2SR2CACU2O8+DELTA; YBA2CU3O6.67; EXCITATIONS; MODULATION; SYMMETRY;

D O I：

10.1103/PhysRevB.98.161114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Charge order has now been observed in several cuprate high-temperature superconductors. We report a resonant inelastic x-ray scattering experiment on the electron-doped cuprate Nd2-xCexCuO4 that demonstrates the existence of dynamic correlations at the charge-order wave vector. Upon cooling we observe a softening in the electronic response, which has been predicted to occur for a d-wave charge order in electron-doped cuprates. At low temperatures, the energy range of these excitations coincides with that of the dispersive magnetic modes known as paramagnons. Furthermore, measurements where the polarization of the scattered photon is resolved indicate that the dynamic response at the charge-order wave vector primarily involves spin-flip excitations. Overall, our findings indicate a coupling between dynamic magnetic and charge-order correlations in the cuprates.

引用

页数：6

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