Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors

Lichen Wang; Biqiong Yu; Ran Jing; Xiangpeng Luo; Junbang Zeng; Jiarui Li; Izabela Bialo; Martin Bluschke; Yang Tang; Jacob Freyermuth; Guichuan Yu; Ronny Sutarto; Feizhou He; Eugen Weschke; Wojciech Tabis; Martin Greven; Yuan Li

doi:10.1103/PhysRevB.101.220509

Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors

Lichen Wang, Biqiong Yu, Ran Jing, Xiangpeng Luo, Junbang Zeng, Jiarui Li, Izabela Bialo, Martin Bluschke, Yang Tang, Jacob Freyermuth, Guichuan Yu, Ronny Sutarto, Feizhou He, Eugen Weschke, Wojciech Tabis, Martin Greven, Yuan Li

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Abstract

Using resonant X-ray diffraction and Raman spectroscopy, we study charge correlations and lattice dynamics in two model cuprates, HgBa2CuO4+δ and HgBa2CaCu2O6+δ. We observe a maximum of the characteristic charge order temperature around the same hole concentration (p≈0.09) in both compounds, and concomitant pronounced anomalies in the lattice dynamics that involve the motion of atoms in and/or adjacent to the CuO2 layers. These anomalies are already present at room temperature, and therefore precede the formation of the static charge correlations, and we attribute them to an instability of the CuO2 layers. Our finding implies that the charge order in the cuprates is an emergent phenomenon, driven by a fundamental variation in both lattice and electronic properties as a function of doping.

Original language	English (US)
Article number	220509
Journal	Physical Review B
Volume	101
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.101.220509
State	Published - Jun 1 2020

Bibliographical note

Funding Information:
We wish to thank M. Le Tacon, B. Keimer, D. Pelc, and Y. Y. Peng for discussions, and Enrico Schierle for assistance during the experiments at HZB. The work at Peking University was supported by the National Natural Science Foundation of China (Grants No. 11888101 and No. 11874069) and Ministry of Science and Technology of China (Grants No. 2018YFA0305602 and No. 2015CB921302). The work at the University of Minnesota was funded by the Department of Energy through the University of Minnesota Center for Quantum Materials under Grant No. DE-SC-0016371. The work at TU Wien was funded by the European Research Council (ERC Consolidator Grant No. 725521). I.B. was supported by the National Science Center (NCN, Poland) under Grant No. UMO-2019/32/T/ST3/0019. Part of the research described in this Rapid Communication was performed at the Canadian Light Source, a National Research Facility of University of Saskatchewan, which is supported by the Canada Foundation for Innovation (CFI), the Natural Sciences and Engineering Research Council (NSERC), the National Research Council (NRC), the Canadian Institutes of Health Research (CIHR), the Government of Saskatchewan, and the University of Saskatchewan.

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© 2020 American Physical Society.

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Wang, L., Yu, B., Jing, R., Luo, X., Zeng, J., Li, J., Bialo, I., Bluschke, M., Tang, Y., Freyermuth, J., Yu, G., Sutarto, R., He, F., Weschke, E., Tabis, W., Greven, M., & Li, Y. (2020). Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors. Physical Review B, 101(22), Article 220509. https://doi.org/10.1103/PhysRevB.101.220509

Wang, L, Yu, B, Jing, R, Luo, X, Zeng, J, Li, J, Bialo, I, Bluschke, M, Tang, Y, Freyermuth, J, Yu, G, Sutarto, R, He, F, Weschke, E, Tabis, W, Greven, M & Li, Y 2020, 'Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors', Physical Review B, vol. 101, no. 22, 220509. https://doi.org/10.1103/PhysRevB.101.220509

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title = "Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors",

abstract = "Using resonant X-ray diffraction and Raman spectroscopy, we study charge correlations and lattice dynamics in two model cuprates, HgBa2CuO4+δ and HgBa2CaCu2O6+δ. We observe a maximum of the characteristic charge order temperature around the same hole concentration (p≈0.09) in both compounds, and concomitant pronounced anomalies in the lattice dynamics that involve the motion of atoms in and/or adjacent to the CuO2 layers. These anomalies are already present at room temperature, and therefore precede the formation of the static charge correlations, and we attribute them to an instability of the CuO2 layers. Our finding implies that the charge order in the cuprates is an emergent phenomenon, driven by a fundamental variation in both lattice and electronic properties as a function of doping.",

author = "Lichen Wang and Biqiong Yu and Ran Jing and Xiangpeng Luo and Junbang Zeng and Jiarui Li and Izabela Bialo and Martin Bluschke and Yang Tang and Jacob Freyermuth and Guichuan Yu and Ronny Sutarto and Feizhou He and Eugen Weschke and Wojciech Tabis and Martin Greven and Yuan Li",

note = "Funding Information: We wish to thank M. Le Tacon, B. Keimer, D. Pelc, and Y. Y. Peng for discussions, and Enrico Schierle for assistance during the experiments at HZB. The work at Peking University was supported by the National Natural Science Foundation of China (Grants No. 11888101 and No. 11874069) and Ministry of Science and Technology of China (Grants No. 2018YFA0305602 and No. 2015CB921302). The work at the University of Minnesota was funded by the Department of Energy through the University of Minnesota Center for Quantum Materials under Grant No. DE-SC-0016371. The work at TU Wien was funded by the European Research Council (ERC Consolidator Grant No. 725521). I.B. was supported by the National Science Center (NCN, Poland) under Grant No. UMO-2019/32/T/ST3/0019. Part of the research described in this Rapid Communication was performed at the Canadian Light Source, a National Research Facility of University of Saskatchewan, which is supported by the Canada Foundation for Innovation (CFI), the Natural Sciences and Engineering Research Council (NSERC), the National Research Council (NRC), the Canadian Institutes of Health Research (CIHR), the Government of Saskatchewan, and the University of Saskatchewan. Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

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AU - Wang, Lichen

AU - Yu, Biqiong

AU - Jing, Ran

AU - Luo, Xiangpeng

AU - Zeng, Junbang

AU - Li, Jiarui

AU - Bialo, Izabela

AU - Bluschke, Martin

AU - Tang, Yang

AU - Freyermuth, Jacob

AU - Yu, Guichuan

AU - Sutarto, Ronny

AU - He, Feizhou

AU - Weschke, Eugen

AU - Tabis, Wojciech

AU - Greven, Martin

AU - Li, Yuan

N1 - Funding Information: We wish to thank M. Le Tacon, B. Keimer, D. Pelc, and Y. Y. Peng for discussions, and Enrico Schierle for assistance during the experiments at HZB. The work at Peking University was supported by the National Natural Science Foundation of China (Grants No. 11888101 and No. 11874069) and Ministry of Science and Technology of China (Grants No. 2018YFA0305602 and No. 2015CB921302). The work at the University of Minnesota was funded by the Department of Energy through the University of Minnesota Center for Quantum Materials under Grant No. DE-SC-0016371. The work at TU Wien was funded by the European Research Council (ERC Consolidator Grant No. 725521). I.B. was supported by the National Science Center (NCN, Poland) under Grant No. UMO-2019/32/T/ST3/0019. Part of the research described in this Rapid Communication was performed at the Canadian Light Source, a National Research Facility of University of Saskatchewan, which is supported by the Canada Foundation for Innovation (CFI), the Natural Sciences and Engineering Research Council (NSERC), the National Research Council (NRC), the Canadian Institutes of Health Research (CIHR), the Government of Saskatchewan, and the University of Saskatchewan. Publisher Copyright: © 2020 American Physical Society.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Using resonant X-ray diffraction and Raman spectroscopy, we study charge correlations and lattice dynamics in two model cuprates, HgBa2CuO4+δ and HgBa2CaCu2O6+δ. We observe a maximum of the characteristic charge order temperature around the same hole concentration (p≈0.09) in both compounds, and concomitant pronounced anomalies in the lattice dynamics that involve the motion of atoms in and/or adjacent to the CuO2 layers. These anomalies are already present at room temperature, and therefore precede the formation of the static charge correlations, and we attribute them to an instability of the CuO2 layers. Our finding implies that the charge order in the cuprates is an emergent phenomenon, driven by a fundamental variation in both lattice and electronic properties as a function of doping.

AB - Using resonant X-ray diffraction and Raman spectroscopy, we study charge correlations and lattice dynamics in two model cuprates, HgBa2CuO4+δ and HgBa2CaCu2O6+δ. We observe a maximum of the characteristic charge order temperature around the same hole concentration (p≈0.09) in both compounds, and concomitant pronounced anomalies in the lattice dynamics that involve the motion of atoms in and/or adjacent to the CuO2 layers. These anomalies are already present at room temperature, and therefore precede the formation of the static charge correlations, and we attribute them to an instability of the CuO2 layers. Our finding implies that the charge order in the cuprates is an emergent phenomenon, driven by a fundamental variation in both lattice and electronic properties as a function of doping.

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Doping-dependent phonon anomaly and charge-order phenomena in the HgBa2CuO4+δ and HgBa2CaCu2 O6+δ superconductors

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