Enhanced charge density wave with mobile superconducting vortices in La1.885Sr0.115CuO4

被引：9

作者：

Wen, J. -J. ^{[1
]}

He, W. ^{[1
,2
]}

Jang, H. ^{[3
,4
]}

Nojiri, H. ^{[5
]}

Matsuzawa, S. ^{[5
]}

Song, S. ^{[6
]}

Chollet, M. ^{[6
]}

Zhu, D. ^{[6
]}

Liu, Y. -J. ^{[3
]}

Fujita, M. ^{[5
]}

Jiang, J. M. ^{[1
,7
]}

Rotundu, C. R. ^{[1
]}

Kao, C. -C. ^{[8
]}

Jiang, H. -C. ^{[1
]}

Lee, J. -S. ^{[3
]}

Lee, Y. S. ^{[1
,7
]}

机构：

[1] Stanford Inst Mat & Energy Sci, SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA

[2] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[3] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA

[4] Pohang Accelerator Lab, PAL XFEL, Pohang 37673, Gyeongbuk, South Korea

[5] Tohoku Univ, Inst Mat Res, Katahira 2-1-1, Sendai 9808577, Japan

[6] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA

[7] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[8] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

来源：

NATURE COMMUNICATIONS | 2023年 / 14卷 / 01期

基金：

美国国家科学基金会; 新加坡国家研究基金会;

关键词：

STRIPE ORDER; PHASE-SEPARATION; FLUCTUATIONS; INHOMOGENEITY; PSEUDOGAP;

D O I：

10.1038/s41467-023-36203-x

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：

Superconductivity in the cuprates is known to be intertwined with charge and spin density waves. Here, the authors study the prototypical cuprate La1.885Sr0.115CuO4 via x-ray scattering and discover a sudden increase in the charge-density-wave amplitude upon entering the superconducting-vortex-liquid state at high magnetic field. Superconductivity in the cuprates is found to be intertwined with charge and spin density waves. Determining the interactions between the different types of order is crucial for understanding these important materials. Here, we elucidate the role of the charge density wave (CDW) in the prototypical cuprate La1.885Sr0.115CuO4, by studying the effects of large magnetic fields (H) up to 24 Tesla. At low temperatures (T), the observed CDW peaks reveal two distinct regions in the material: a majority phase with short-range CDW coexisting with superconductivity, and a minority phase with longer-range CDW coexisting with static spin density wave (SDW). With increasing magnetic field, the CDW first grows smoothly in a manner similar to the SDW. However, at high fields we discover a sudden increase in the CDW amplitude upon entering the vortex-liquid state. Our results signify strong coupling of the CDW to mobile superconducting vortices and link enhanced CDW amplitude with local superconducting pairing across the H - T phase diagram.

引用

页数：6

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