Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
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
_version_ 1784713379223437312
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
work_keys_str_mv AT yuejin anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT ayinoyilikal anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT truttmanntristank anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT gastiasoromarian anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT perskyeylon anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT khanukovalex anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT leedooyong anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT thoutamlaxmanr anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT kaliskybeena anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT fernandesrafaelm anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT pribiagvlads anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms
AT jalanbharat anomaloustransportinhighmobilitysuperconductingsrtio3thinfilms