Negative magnetoresistance in amorphous indium oxide wires
We study magneto-transport properties of several amorphous Indium oxide nanowires of different widths. The wires show superconducting transition at zero magnetic field, but, there exist a finite resistance at the lowest temperature. The R(T) broadening was explained by available phase slip models. A...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/87478 http://hdl.handle.net/10220/46702 |
| _version_ | 1826116848369795072 |
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| author | Mitra, Sreemanta Tewari, Girish C Mahalu, Diana Shahar, Dan |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Mitra, Sreemanta Tewari, Girish C Mahalu, Diana Shahar, Dan |
| author_sort | Mitra, Sreemanta |
| collection | NTU |
| description | We study magneto-transport properties of several amorphous Indium oxide nanowires of different widths. The wires show superconducting transition at zero magnetic field, but, there exist a finite resistance at the lowest temperature. The R(T) broadening was explained by available phase slip models. At low field, and far below the superconducting critical temperature, the wires with diameter equal to or less than 100 nm, show negative magnetoresistance (nMR). The magnitude of nMR and the crossover field are found to be dependent on both temperature and the cross-sectional area. We find that this intriguing behavior originates from the interplay between two field dependent contributions. |
| first_indexed | 2024-10-01T04:18:08Z |
| format | Journal Article |
| id | ntu-10356/87478 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:18:08Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/874782023-02-28T19:34:10Z Negative magnetoresistance in amorphous indium oxide wires Mitra, Sreemanta Tewari, Girish C Mahalu, Diana Shahar, Dan School of Physical and Mathematical Sciences DRNTU::Science::Physics Nanowires Superconducting Properties and Materials We study magneto-transport properties of several amorphous Indium oxide nanowires of different widths. The wires show superconducting transition at zero magnetic field, but, there exist a finite resistance at the lowest temperature. The R(T) broadening was explained by available phase slip models. At low field, and far below the superconducting critical temperature, the wires with diameter equal to or less than 100 nm, show negative magnetoresistance (nMR). The magnitude of nMR and the crossover field are found to be dependent on both temperature and the cross-sectional area. We find that this intriguing behavior originates from the interplay between two field dependent contributions. Published version 2018-11-26T06:10:38Z 2019-12-06T16:42:45Z 2018-11-26T06:10:38Z 2019-12-06T16:42:45Z 2016 Journal Article Mitra, S., Tewari, G. C., Mahalu, D., & Shahar, D. (2016). Negative magnetoresistance in amorphous indium oxide wires. Scientific Reports, 6, 37687-. doi:10.1038/srep37687. https://hdl.handle.net/10356/87478 http://hdl.handle.net/10220/46702 10.1038/srep37687 en Scientific Reports © 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 9 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics Nanowires Superconducting Properties and Materials Mitra, Sreemanta Tewari, Girish C Mahalu, Diana Shahar, Dan Negative magnetoresistance in amorphous indium oxide wires |
| title | Negative magnetoresistance in amorphous indium oxide wires |
| title_full | Negative magnetoresistance in amorphous indium oxide wires |
| title_fullStr | Negative magnetoresistance in amorphous indium oxide wires |
| title_full_unstemmed | Negative magnetoresistance in amorphous indium oxide wires |
| title_short | Negative magnetoresistance in amorphous indium oxide wires |
| title_sort | negative magnetoresistance in amorphous indium oxide wires |
| topic | DRNTU::Science::Physics Nanowires Superconducting Properties and Materials |
| url | https://hdl.handle.net/10356/87478 http://hdl.handle.net/10220/46702 |
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