Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy

Abstract The momentum-dependent orbital character in crystalline solids, referred to as orbital texture, is of capital importance in the emergence of symmetry-broken collective phases, such as charge density waves as well as superconducting and topological states of matter. By performing extreme ult...

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Autores principales:	Samuel Beaulieu, Michael Schüler, Jakub Schusser, Shuo Dong, Tommaso Pincelli, Julian Maklar, Alexander Neef, Friedrich Reinert, Martin Wolf, Laurenz Rettig, Ján Minár, Ralph Ernstorfer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/6575b4462c95491b9e66c5fa944a7c4c
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spelling	oai:doaj.org-article:6575b4462c95491b9e66c5fa944a7c4c2021-11-21T12:41:49ZUnveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy10.1038/s41535-021-00398-32397-4648https://doaj.org/article/6575b4462c95491b9e66c5fa944a7c4c2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00398-3https://doaj.org/toc/2397-4648Abstract The momentum-dependent orbital character in crystalline solids, referred to as orbital texture, is of capital importance in the emergence of symmetry-broken collective phases, such as charge density waves as well as superconducting and topological states of matter. By performing extreme ultraviolet multidimensional angle-resolved photoemission spectroscopy for two different crystal orientations linked to each other by mirror symmetry, we isolate and identify the role of orbital texture in photoemission from the transition metal dichalcogenide 1T-TiTe2. By comparing our experimental results with theoretical calculations based on both a quantitative one-step model of photoemission and an intuitive tight-binding model, we unambiguously demonstrate the link between the momentum-dependent orbital orientation and the emergence of strong intrinsic linear dichroism in the photoelectron angular distributions. Our results represent an important step towards going beyond band structure (eigenvalues) mapping and learning about electronic wavefunction and orbital texture of solids by exploiting matrix element effects in photoemission spectroscopy.Samuel BeaulieuMichael SchülerJakub SchusserShuo DongTommaso PincelliJulian MaklarAlexander NeefFriedrich ReinertMartin WolfLaurenz RettigJán MinárRalph ErnstorferNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Samuel Beaulieu Michael Schüler Jakub Schusser Shuo Dong Tommaso Pincelli Julian Maklar Alexander Neef Friedrich Reinert Martin Wolf Laurenz Rettig Ján Minár Ralph Ernstorfer Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
description	Abstract The momentum-dependent orbital character in crystalline solids, referred to as orbital texture, is of capital importance in the emergence of symmetry-broken collective phases, such as charge density waves as well as superconducting and topological states of matter. By performing extreme ultraviolet multidimensional angle-resolved photoemission spectroscopy for two different crystal orientations linked to each other by mirror symmetry, we isolate and identify the role of orbital texture in photoemission from the transition metal dichalcogenide 1T-TiTe2. By comparing our experimental results with theoretical calculations based on both a quantitative one-step model of photoemission and an intuitive tight-binding model, we unambiguously demonstrate the link between the momentum-dependent orbital orientation and the emergence of strong intrinsic linear dichroism in the photoelectron angular distributions. Our results represent an important step towards going beyond band structure (eigenvalues) mapping and learning about electronic wavefunction and orbital texture of solids by exploiting matrix element effects in photoemission spectroscopy.
format	article
author	Samuel Beaulieu Michael Schüler Jakub Schusser Shuo Dong Tommaso Pincelli Julian Maklar Alexander Neef Friedrich Reinert Martin Wolf Laurenz Rettig Ján Minár Ralph Ernstorfer
author_facet	Samuel Beaulieu Michael Schüler Jakub Schusser Shuo Dong Tommaso Pincelli Julian Maklar Alexander Neef Friedrich Reinert Martin Wolf Laurenz Rettig Ján Minár Ralph Ernstorfer
author_sort	Samuel Beaulieu
title	Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
title_short	Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
title_full	Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
title_fullStr	Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
title_full_unstemmed	Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
title_sort	unveiling the orbital texture of 1t-tite2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6575b4462c95491b9e66c5fa944a7c4c
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Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy

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