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Anomalous transport in high-mobility superconducting SrTiO(3) thin films
The study of subtle effects on transport in semiconductors requires high-quality epitaxial structures with low defect density. Using hybrid molecular beam epitaxy (MBE), SrTiO(3) films with a low-temperature mobility exceeding 42,000 cm(2) V(−1) s(−1) at a low carrier density of 3 × 10(17) cm(−3) we...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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American Association for the Advancement of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9132441/ https://www.ncbi.nlm.nih.gov/pubmed/35613270 http://dx.doi.org/10.1126/sciadv.abl5668 |
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author | Yue, Jin Ayino, Yilikal Truttmann, Tristan K. Gastiasoro, Maria N. Persky, Eylon Khanukov, Alex Lee, Dooyong Thoutam, Laxman R. Kalisky, Beena Fernandes, Rafael M. Pribiag, Vlad S. Jalan, Bharat |
author_facet | Yue, Jin Ayino, Yilikal Truttmann, Tristan K. Gastiasoro, Maria N. Persky, Eylon Khanukov, Alex Lee, Dooyong Thoutam, Laxman R. Kalisky, Beena Fernandes, Rafael M. Pribiag, Vlad S. Jalan, Bharat |
author_sort | Yue, Jin |
collection | PubMed |
description | The study of subtle effects on transport in semiconductors requires high-quality epitaxial structures with low defect density. Using hybrid molecular beam epitaxy (MBE), SrTiO(3) films with a low-temperature mobility exceeding 42,000 cm(2) V(−1) s(−1) at a low carrier density of 3 × 10(17) cm(−3) were achieved. A sudden and sharp decrease in residual resistivity accompanied by an enhancement in the superconducting transition temperature were observed across the second Lifshitz transition where the third band becomes occupied, revealing dominant intraband scattering. These films further revealed an anomalous behavior in the Hall carrier density as a consequence of the antiferrodistortive (AFD) transition and the temperature dependence of the Hall scattering factor. Using hybrid MBE growth, phenomenological modeling, temperature-dependent transport measurements, and scanning superconducting quantum interference device imaging, we provide critical insights into the important role of inter- versus intraband scattering and of AFD domain walls on normal-state and superconducting properties of SrTiO(3). |
format | Online Article Text |
id | pubmed-9132441 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-91324412022-06-01 Anomalous transport in high-mobility superconducting SrTiO(3) thin films Yue, Jin Ayino, Yilikal Truttmann, Tristan K. Gastiasoro, Maria N. Persky, Eylon Khanukov, Alex Lee, Dooyong Thoutam, Laxman R. Kalisky, Beena Fernandes, Rafael M. Pribiag, Vlad S. Jalan, Bharat Sci Adv Physical and Materials Sciences The study of subtle effects on transport in semiconductors requires high-quality epitaxial structures with low defect density. Using hybrid molecular beam epitaxy (MBE), SrTiO(3) films with a low-temperature mobility exceeding 42,000 cm(2) V(−1) s(−1) at a low carrier density of 3 × 10(17) cm(−3) were achieved. A sudden and sharp decrease in residual resistivity accompanied by an enhancement in the superconducting transition temperature were observed across the second Lifshitz transition where the third band becomes occupied, revealing dominant intraband scattering. These films further revealed an anomalous behavior in the Hall carrier density as a consequence of the antiferrodistortive (AFD) transition and the temperature dependence of the Hall scattering factor. Using hybrid MBE growth, phenomenological modeling, temperature-dependent transport measurements, and scanning superconducting quantum interference device imaging, we provide critical insights into the important role of inter- versus intraband scattering and of AFD domain walls on normal-state and superconducting properties of SrTiO(3). American Association for the Advancement of Science 2022-05-25 /pmc/articles/PMC9132441/ /pubmed/35613270 http://dx.doi.org/10.1126/sciadv.abl5668 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Physical and Materials Sciences Yue, Jin Ayino, Yilikal Truttmann, Tristan K. Gastiasoro, Maria N. Persky, Eylon Khanukov, Alex Lee, Dooyong Thoutam, Laxman R. Kalisky, Beena Fernandes, Rafael M. Pribiag, Vlad S. Jalan, Bharat Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title | Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title_full | Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title_fullStr | Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title_full_unstemmed | Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title_short | Anomalous transport in high-mobility superconducting SrTiO(3) thin films |
title_sort | anomalous transport in high-mobility superconducting srtio(3) thin films |
topic | Physical and Materials Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9132441/ https://www.ncbi.nlm.nih.gov/pubmed/35613270 http://dx.doi.org/10.1126/sciadv.abl5668 |
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