Fano interference between collective modes in cuprate high-Tc superconductors

被引：20

作者：

Chu, Hao ^{[1
,2
,3
,4
,5
]}

Kovalev, Sergey ^{[6
]}

Wang, Zi Xiao ^{[7
]}

Schwarz, Lukas ^{[1
]}

Dong, Tao ^{[7
]}

Feng, Liwen ^{[1
,4
,8
]}

Haenel, Rafael ^{[1
,2
,3
]}

Kim, Min-Jae ^{[1
,4
,8
]}

Shabestari, Parmida ^{[1
,4
]}

Hoang, Le Phuong ^{[1
,4
]}

Honasoge, Kedar ^{[1
,4
]}

Dawson, Robert David ^{[1
]}

Putzky, Daniel ^{[1
]}

Kim, Gideok ^{[1
]}

Puviani, Matteo ^{[1
]}

Chen, Min ^{[6
]}

Awari, Nilesh ^{[6
]}

Ponomaryov, Alexey N. ^{[6
]}

Ilyakov, Igor ^{[6
]}

Bluschke, Martin ^{[1
,2
,3
]}

Boschini, Fabio ^{[9
,11
]}

Zonno, Marta ^{[1
,2
,3
]}

Zhdanovich, Sergey ^{[2
,3
]}

Na, Mengxing ^{[2
,3
]}

Christiani, Georg ^{[1
]}

Logvenov, Gennady ^{[1
]}

Jones, David J. ^{[2
,3
]}

Damascelli, Andrea ^{[2
,3
]}

Minola, Matteo ^{[1
]}

Keimer, Bernhard ^{[1
]}

Manske, Dirk ^{[1
]}

Wang, Nanlin ^{[7
,10
]}

Deinert, Jan-Christoph ^{[6
]}

Kaiser, Stefan ^{[1
,4
,8
]}

机构：

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

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

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

[4] Univ Stuttgart, Phys Inst 4, D-70569 Stuttgart, Germany

[5] Shanghai Jiao Tong Univ, Ctr Ultrafast Sci & Technol, Sch Phys & Astron, Shanghai 200240, Peoples R China

[6] Helmholtz Zent Dresden Rossendorf, Bautzner Landstr 400, D-01328 Dresden, Germany

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

[8] Tech Univ Dresden, Inst Solid State & Mat Phys, D-01062 Dresden, Germany

[9] Inst Natl Rech Sci, Energie Mat Telecommun Res Ctr, Varennes, PQ J3X 1S2, Canada

[10] Beijing Acad Quantum Informat Sci, Beijing 100913, Peoples R China

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

来源：

NATURE COMMUNICATIONS | 2023年 / 14卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 中国国家自然科学基金;

关键词：

DENSITY-WAVE ORDER;

D O I：

10.1038/s41467-023-36787-4

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：

Cuprate superconductors are known for their intertwined interactions and coexistence of competing orders. Here, the authors observe a Fano resonance in the nonlinear THz response of La2-xSrxCuO4, which may arise from a coupling between superconducting and charge-density-wave amplitude fluctuations. Cuprate high-T-c superconductors are known for their intertwined interactions and the coexistence of competing orders. Uncovering experimental signatures of these interactions is often the first step in understanding their complex relations. A typical spectroscopic signature of the interaction between a discrete mode and a continuum of excitations is the Fano resonance/interference, characterized by the asymmetric light-scattering amplitude of the discrete mode as a function of the electromagnetic driving frequency. In this study, we report a new type of Fano resonance manifested by the nonlinear terahertz response of cuprate high-T-c superconductors, where we resolve both the amplitude and phase signatures of the Fano resonance. Our extensive hole-doping and magnetic field dependent investigation suggests that the Fano resonance may arise from an interplay between the superconducting fluctuations and the charge density wave fluctuations, prompting future studies to look more closely into their dynamical interactions.

引用

页数：7

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