Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface
Abstract The interplay of nearly degenerate orders in quantum materials can lead to a myriad of emergent phases. A prominent case is that of the high-T c cuprates for which the relationship between superconductivity and a short-ranged, incommensurate charge density wave in the CuO2 planes involving...
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Nature Portfolio
2021
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oai:doaj.org-article:c95024e655ad4d25add42bd7f4a6d9832021-12-02T13:50:57ZLong-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface10.1038/s41535-021-00311-y2397-4648https://doaj.org/article/c95024e655ad4d25add42bd7f4a6d9832021-02-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00311-yhttps://doaj.org/toc/2397-4648Abstract The interplay of nearly degenerate orders in quantum materials can lead to a myriad of emergent phases. A prominent case is that of the high-T c cuprates for which the relationship between superconductivity and a short-ranged, incommensurate charge density wave in the CuO2 planes involving the $$d_{x^2 - y^2}$$ d x 2 − y 2 orbitals (Cu-CDW) is a subject of great current interest. Strong modifications of the strength and coherence of this Cu-CDW have been achieved by applying large magnetic fields, uniaxial pressure, or via the interfacial coupling in cuprate/manganite multilayers. However, such modifications do not alter the dominant orbital character. Here we investigate cuprate/manganite multilayers with resonant inelastic X-ray scattering (RIXS) and show that a new kind of Cu-based density wave order can be induced that has not been previously observed in the cuprates. This order has an unusually small in-plane wave vector in the range of Q || < 0.1 reciprocal lattice units (r.l.u.), a large correlation length of about 40 nm, and a predominant $$d_{z^2}$$ d z 2 orbital character, instead of the typical $$d_{x^2 - y^2}$$ d x 2 − y 2 one. Its appearance is determined by the hole doping of the manganite which is a key parameter controlling the interfacial charge transfer and orbital reconstruction. We anticipate that the observation of a previously unknown type of density wave order at the YBCO interface will allow for fresh perspectives on the enigmatic relation between superconductivity and charge order (CO) in the cuprates.Roxana GainaChristopher W. NicholsonMaxime RumoSubhrangsu SarkarJarji KhmaladzeEugenio ParisYi TsengWenliang ZhangTeguh C. AsmaraDaniel McNallyCinthia PiamontezeEugen WeschkeThorsten SchmittClaude MonneyChristian BernhardNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (2021) |
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DOAJ |
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Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 |
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Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Roxana Gaina Christopher W. Nicholson Maxime Rumo Subhrangsu Sarkar Jarji Khmaladze Eugenio Paris Yi Tseng Wenliang Zhang Teguh C. Asmara Daniel McNally Cinthia Piamonteze Eugen Weschke Thorsten Schmitt Claude Monney Christian Bernhard Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| description |
Abstract The interplay of nearly degenerate orders in quantum materials can lead to a myriad of emergent phases. A prominent case is that of the high-T c cuprates for which the relationship between superconductivity and a short-ranged, incommensurate charge density wave in the CuO2 planes involving the $$d_{x^2 - y^2}$$ d x 2 − y 2 orbitals (Cu-CDW) is a subject of great current interest. Strong modifications of the strength and coherence of this Cu-CDW have been achieved by applying large magnetic fields, uniaxial pressure, or via the interfacial coupling in cuprate/manganite multilayers. However, such modifications do not alter the dominant orbital character. Here we investigate cuprate/manganite multilayers with resonant inelastic X-ray scattering (RIXS) and show that a new kind of Cu-based density wave order can be induced that has not been previously observed in the cuprates. This order has an unusually small in-plane wave vector in the range of Q || < 0.1 reciprocal lattice units (r.l.u.), a large correlation length of about 40 nm, and a predominant $$d_{z^2}$$ d z 2 orbital character, instead of the typical $$d_{x^2 - y^2}$$ d x 2 − y 2 one. Its appearance is determined by the hole doping of the manganite which is a key parameter controlling the interfacial charge transfer and orbital reconstruction. We anticipate that the observation of a previously unknown type of density wave order at the YBCO interface will allow for fresh perspectives on the enigmatic relation between superconductivity and charge order (CO) in the cuprates. |
| format |
article |
| author |
Roxana Gaina Christopher W. Nicholson Maxime Rumo Subhrangsu Sarkar Jarji Khmaladze Eugenio Paris Yi Tseng Wenliang Zhang Teguh C. Asmara Daniel McNally Cinthia Piamonteze Eugen Weschke Thorsten Schmitt Claude Monney Christian Bernhard |
| author_facet |
Roxana Gaina Christopher W. Nicholson Maxime Rumo Subhrangsu Sarkar Jarji Khmaladze Eugenio Paris Yi Tseng Wenliang Zhang Teguh C. Asmara Daniel McNally Cinthia Piamonteze Eugen Weschke Thorsten Schmitt Claude Monney Christian Bernhard |
| author_sort |
Roxana Gaina |
| title |
Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| title_short |
Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| title_full |
Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| title_fullStr |
Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| title_full_unstemmed |
Long-ranged Cu-based order with $$d_{z^2}$$ d z 2 orbital character at a YBa2Cu3O7/ manganite interface |
| title_sort |
long-ranged cu-based order with $$d_{z^2}$$ d z 2 orbital character at a yba2cu3o7/ manganite interface |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/c95024e655ad4d25add42bd7f4a6d983 |
| work_keys_str_mv |
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1718392464859987968 |