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Direct observation of orbital hybridisation in a cuprate superconductor
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- Matt, C. E. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.;Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
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- Sutter, D. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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- Cook, A. M. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.,KTH Royal Inst Technol, Mat Phys, SE-16440 Stockholm, Sweden.
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- Sassa, Yasmine (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Månsson, Martin, As. Prof. 1976- (author)
- KTH,Materialfysik, MF,Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.,Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.,Diamond Light Source, Harwell Campus, Didcot OX11 0DE, Oxon, England.,Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England.,Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan.
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- Tjernberg, Oscar (author)
- KTH,Materialfysik, MF,KTH Royal Inst Technol, Mat Phys, SE-16440 Stockholm, Sweden.
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- Das, L. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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Horio, M. (author)
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- Destraz, D. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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- Fatuzzo, C. G. (author)
- Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland.
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- Hauser, K. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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Shi, M. (author)
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Kobayashi, M. (author)
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- Strocov, V. N. (author)
- Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
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- Schmitt, T. (author)
- Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
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- Dudin, P. (author)
- Diamond Light Source, Harwell Campus, Didcot OX11 0DE, Oxon, England.
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Hoesch, M. (author)
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- Pyon, S. (author)
- Univ Tokyo, Dept Adv Mat, Kashiwa, Chiba 2778561, Japan.
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- Takayama, T. (author)
- Univ Tokyo, Dept Adv Mat, Kashiwa, Chiba 2778561, Japan.,Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan.,Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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- Takagi, H. (author)
- Univ Tokyo, Dept Adv Mat, Kashiwa, Chiba 2778561, Japan.
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- Lipscombe, O. J. (author)
- Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England.
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Hayden, S. M. (author)
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Kurosawa, T. (author)
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- Momono, N. (author)
- Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan.;Muroran Inst Technol, Dept Appl Sci, Muroran, Hokkaido 0508585, Japan.
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Oda, M. (author)
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Neupert, T. (author)
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- Chang, J. (author)
- Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland.
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Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland;Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland. (creator_code:org_t)
- 2018-03-06
- 2018
- English.
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In: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 9
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The minimal ingredients to explain the essential physics of layered copper-oxide (cuprates) materials remains heavily debated. Effective low-energy single-band models of the copper-oxygen orbitals are widely used because there exists no strong experimental evidence supporting multi-band structures. Here, we report angle-resolved photoelectron spectroscopy experiments on La-based cuprates that provide direct observation of a two-band structure. This electronic structure, qualitatively consistent with density functional theory, is parametrised by a two-orbital (d(x2-y2) and d(z2)) tight-binding model. We quantify the orbital hybridisation which provides an explanation for the Fermi surface topology and the proximity of the van-Hove singularity to the Fermi level. Our analysis leads to a unification of electronic hopping parameters for single-layer cuprates and we conclude that hybridisation, restraining d-wave pairing, is an important optimisation element for superconductivity.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Matt, C. E.
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Sutter, D.
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Cook, A. M.
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Sassa, Yasmine
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Månsson, Martin, ...
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Tjernberg, Oscar
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show more...
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Das, L.
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Horio, M.
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Destraz, D.
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Fatuzzo, C. G.
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Hauser, K.
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Shi, M.
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Kobayashi, M.
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Strocov, V. N.
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Schmitt, T.
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Dudin, P.
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Hoesch, M.
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Pyon, S.
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Takayama, T.
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Takagi, H.
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Lipscombe, O. J.
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Hayden, S. M.
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Kurosawa, T.
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Momono, N.
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Oda, M.
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Neupert, T.
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Chang, J.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Nature Communica ...
- By the university
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Royal Institute of Technology
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Uppsala University