Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films
The nematicity in multilayer FeSe/SrTiO_{3} films has been previously suggested to be enhanced with decreasing film thickness. Motivated by this, there have been many discussions about the competing relation between nematicity and superconductivity. However, the criterion for determining the nematic...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.043011 |
| _version_ | 1827285086735695872 |
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| author | Rui Lou Oleksandr Suvorov Hans-Joachim Grafe Andrii Kuibarov Maxim Krivenkov Oliver Rader Bernd Büchner Sergey Borisenko Alexander Fedorov |
| author_facet | Rui Lou Oleksandr Suvorov Hans-Joachim Grafe Andrii Kuibarov Maxim Krivenkov Oliver Rader Bernd Büchner Sergey Borisenko Alexander Fedorov |
| author_sort | Rui Lou |
| collection | DOAJ |
| description | The nematicity in multilayer FeSe/SrTiO_{3} films has been previously suggested to be enhanced with decreasing film thickness. Motivated by this, there have been many discussions about the competing relation between nematicity and superconductivity. However, the criterion for determining the nematicity strength in FeSe remains highly debated. The understanding of nematicity as well as its relation to superconductivity in FeSe films is therefore still controversial. Here, we fabricate multilayer FeSe/SrTiO_{3} films using molecular beam epitaxy and study the nematic properties by combining angle-resolved photoemission spectroscopy, ^{77}Se nuclear magnetic resonance, and scanning tunneling microscopy experiments. We unambiguously demonstrate that, near the interface, the nematic order is suppressed by the SrTiO_{3}-induced tensile strain; in the bulk region further away from the interface, the strength of nematicity recovers to the bulk value. Our results not only solve the recent controversy about the nematicity in multilayer FeSe films, but also offer valuable insights into the relationship between nematicity and superconductivity. |
| first_indexed | 2024-04-24T10:09:18Z |
| format | Article |
| id | doaj.art-189fb6d0d30e413fa9eedeba94980855 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:09:18Z |
| publishDate | 2023-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-189fb6d0d30e413fa9eedeba949808552024-04-12T17:34:41ZengAmerican Physical SocietyPhysical Review Research2643-15642023-10-015404301110.1103/PhysRevResearch.5.043011Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} filmsRui LouOleksandr SuvorovHans-Joachim GrafeAndrii KuibarovMaxim KrivenkovOliver RaderBernd BüchnerSergey BorisenkoAlexander FedorovThe nematicity in multilayer FeSe/SrTiO_{3} films has been previously suggested to be enhanced with decreasing film thickness. Motivated by this, there have been many discussions about the competing relation between nematicity and superconductivity. However, the criterion for determining the nematicity strength in FeSe remains highly debated. The understanding of nematicity as well as its relation to superconductivity in FeSe films is therefore still controversial. Here, we fabricate multilayer FeSe/SrTiO_{3} films using molecular beam epitaxy and study the nematic properties by combining angle-resolved photoemission spectroscopy, ^{77}Se nuclear magnetic resonance, and scanning tunneling microscopy experiments. We unambiguously demonstrate that, near the interface, the nematic order is suppressed by the SrTiO_{3}-induced tensile strain; in the bulk region further away from the interface, the strength of nematicity recovers to the bulk value. Our results not only solve the recent controversy about the nematicity in multilayer FeSe films, but also offer valuable insights into the relationship between nematicity and superconductivity.http://doi.org/10.1103/PhysRevResearch.5.043011 |
| spellingShingle | Rui Lou Oleksandr Suvorov Hans-Joachim Grafe Andrii Kuibarov Maxim Krivenkov Oliver Rader Bernd Büchner Sergey Borisenko Alexander Fedorov Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films Physical Review Research |
| title | Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films |
| title_full | Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films |
| title_fullStr | Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films |
| title_full_unstemmed | Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films |
| title_short | Suppression of nematicity by tensile strain in multilayer FeSe/SrTiO_{3} films |
| title_sort | suppression of nematicity by tensile strain in multilayer fese srtio 3 films |
| url | http://doi.org/10.1103/PhysRevResearch.5.043011 |
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