Formation of Incommensurate Charge Density Waves in Cuprates
Although charge density waves (CDWs) are omnipresent in cuprate high-temperature superconductors, they occur at significantly different wave vectors, confounding efforts to understand their formation mechanism. Here, we use resonant inelastic x-ray scattering to investigate the doping- and temperatu...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2019-09-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.9.031042 |
| _version_ | 1819030956167659520 |
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| author | H. Miao R. Fumagalli M. Rossi J. Lorenzana G. Seibold F. Yakhou-Harris K. Kummer N. B. Brookes G. D. Gu L. Braicovich G. Ghiringhelli M. P. M. Dean |
| author_facet | H. Miao R. Fumagalli M. Rossi J. Lorenzana G. Seibold F. Yakhou-Harris K. Kummer N. B. Brookes G. D. Gu L. Braicovich G. Ghiringhelli M. P. M. Dean |
| author_sort | H. Miao |
| collection | DOAJ |
| description | Although charge density waves (CDWs) are omnipresent in cuprate high-temperature superconductors, they occur at significantly different wave vectors, confounding efforts to understand their formation mechanism. Here, we use resonant inelastic x-ray scattering to investigate the doping- and temperature-dependent CDW evolution in La_{2-x}Ba_{x}CuO_{4} (x=0.115–0.155). We discover that the CDW develops in two stages with decreasing temperature. A precursor CDW with a quasicommensurate wave vector emerges first at high temperature. This doping-independent precursor CDW correlation originates from the CDW phase mode coupled with a phonon and “seeds” the low-temperature CDW with a strongly doping-dependent wave vector. Our observation reveals the precursor CDW and its phase mode as the building blocks of the highly intertwined electronic ground state in the cuprates. |
| first_indexed | 2024-12-21T06:38:23Z |
| format | Article |
| id | doaj.art-80732fd5cde1476ea25754c10d88add3 |
| institution | Directory Open Access Journal |
| issn | 2160-3308 |
| language | English |
| last_indexed | 2024-12-21T06:38:23Z |
| publishDate | 2019-09-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj.art-80732fd5cde1476ea25754c10d88add32022-12-21T19:12:47ZengAmerican Physical SocietyPhysical Review X2160-33082019-09-019303104210.1103/PhysRevX.9.031042Formation of Incommensurate Charge Density Waves in CupratesH. MiaoR. FumagalliM. RossiJ. LorenzanaG. SeiboldF. Yakhou-HarrisK. KummerN. B. BrookesG. D. GuL. BraicovichG. GhiringhelliM. P. M. DeanAlthough charge density waves (CDWs) are omnipresent in cuprate high-temperature superconductors, they occur at significantly different wave vectors, confounding efforts to understand their formation mechanism. Here, we use resonant inelastic x-ray scattering to investigate the doping- and temperature-dependent CDW evolution in La_{2-x}Ba_{x}CuO_{4} (x=0.115–0.155). We discover that the CDW develops in two stages with decreasing temperature. A precursor CDW with a quasicommensurate wave vector emerges first at high temperature. This doping-independent precursor CDW correlation originates from the CDW phase mode coupled with a phonon and “seeds” the low-temperature CDW with a strongly doping-dependent wave vector. Our observation reveals the precursor CDW and its phase mode as the building blocks of the highly intertwined electronic ground state in the cuprates.http://doi.org/10.1103/PhysRevX.9.031042 |
| spellingShingle | H. Miao R. Fumagalli M. Rossi J. Lorenzana G. Seibold F. Yakhou-Harris K. Kummer N. B. Brookes G. D. Gu L. Braicovich G. Ghiringhelli M. P. M. Dean Formation of Incommensurate Charge Density Waves in Cuprates Physical Review X |
| title | Formation of Incommensurate Charge Density Waves in Cuprates |
| title_full | Formation of Incommensurate Charge Density Waves in Cuprates |
| title_fullStr | Formation of Incommensurate Charge Density Waves in Cuprates |
| title_full_unstemmed | Formation of Incommensurate Charge Density Waves in Cuprates |
| title_short | Formation of Incommensurate Charge Density Waves in Cuprates |
| title_sort | formation of incommensurate charge density waves in cuprates |
| url | http://doi.org/10.1103/PhysRevX.9.031042 |
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