Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration
This study focuses on an observed anomalous resistance peak in the temperature-dependent resistance (RT) curves of Bi2Sr2CaCu2O8+δ (BSCCO), attributed to surface degradation and pronounced electrical resistance anisotropy. Employing a standard four-point probe technique on the ab-plane, this researc...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/182634 |
| _version_ | 1826111949185744896 |
|---|---|
| author | Zhang, Huili Tian, Wanghao |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhang, Huili Tian, Wanghao |
| author_sort | Zhang, Huili |
| collection | NTU |
| description | This study focuses on an observed anomalous resistance peak in the temperature-dependent resistance (RT) curves of Bi2Sr2CaCu2O8+δ (BSCCO), attributed to surface degradation and pronounced electrical resistance anisotropy. Employing a standard four-point probe technique on the ab-plane, this research circumvents conventional c-axis testing limitations, enhancing the understanding of BSCCO’s electrical behavior by avoiding contact resistance and etching issues. A comprehensive three-dimensional model, developed using the finite element method, captures the strong resistive anisotropy and correlates the depth of surface degradation with the anomalous resistance peaks, explaining this phenomenon from a quantitative perspective, providing a more specific reference for future analysis of relevant signals. The fabrication process involved pre-patterning and mechanical exfoliation techniques to minimize atmospheric exposure and ensure device integrity. Despite these efforts, surface degradation impacting the superconductivity of surface layers was inevitable. The study’s experimental results, complemented by numerical modeling, reveal the intricate relationship between surface layer thickness and the anomalous resistance peak, providing an approach to gauge the extent of degradation in BSCCO devices. Moreover, it underscores the potential necessity of employing some critical techniques to avoid degradation, such as low-temperature exfoliation in other literatures where degradation signal is notably absent from RT curves. This work advances the understanding of BSCCO’s electrical properties and highlights the critical need for precise fabrication and environmental controls in developing high-temperature superconducting technologies. |
| first_indexed | 2025-03-09T10:27:44Z |
| format | Journal Article |
| id | ntu-10356/182634 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T10:27:44Z |
| publishDate | 2025 |
| record_format | dspace |
| spelling | ntu-10356/1826342025-02-12T03:15:05Z Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration Zhang, Huili Tian, Wanghao School of Electrical and Electronic Engineering Engineering Surface degradation Temperature-dependent resistance This study focuses on an observed anomalous resistance peak in the temperature-dependent resistance (RT) curves of Bi2Sr2CaCu2O8+δ (BSCCO), attributed to surface degradation and pronounced electrical resistance anisotropy. Employing a standard four-point probe technique on the ab-plane, this research circumvents conventional c-axis testing limitations, enhancing the understanding of BSCCO’s electrical behavior by avoiding contact resistance and etching issues. A comprehensive three-dimensional model, developed using the finite element method, captures the strong resistive anisotropy and correlates the depth of surface degradation with the anomalous resistance peaks, explaining this phenomenon from a quantitative perspective, providing a more specific reference for future analysis of relevant signals. The fabrication process involved pre-patterning and mechanical exfoliation techniques to minimize atmospheric exposure and ensure device integrity. Despite these efforts, surface degradation impacting the superconductivity of surface layers was inevitable. The study’s experimental results, complemented by numerical modeling, reveal the intricate relationship between surface layer thickness and the anomalous resistance peak, providing an approach to gauge the extent of degradation in BSCCO devices. Moreover, it underscores the potential necessity of employing some critical techniques to avoid degradation, such as low-temperature exfoliation in other literatures where degradation signal is notably absent from RT curves. This work advances the understanding of BSCCO’s electrical properties and highlights the critical need for precise fabrication and environmental controls in developing high-temperature superconducting technologies. We gratefully acknowledge financial support from the Scientific Research Foundation for the PhD (Nanjing Institute of Technology, No. YKJ2019108), Jiangsu Province Double Innovation Doctor. 2025-02-12T03:15:04Z 2025-02-12T03:15:04Z 2024 Journal Article Zhang, H. & Tian, W. (2024). Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration. Superconductor Science and Technology, 37(11), 115031-. https://dx.doi.org/10.1088/1361-6668/ad7b81 0953-2048 https://hdl.handle.net/10356/182634 10.1088/1361-6668/ad7b81 2-s2.0-85207633193 11 37 115031 en Superconductor Science and Technology © 2024 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved. |
| spellingShingle | Engineering Surface degradation Temperature-dependent resistance Zhang, Huili Tian, Wanghao Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title | Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title_full | Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title_fullStr | Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title_full_unstemmed | Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title_short | Characterizing anomalous peaks in the resistance-temperature profile of Bi2Sr2CaCu2O8+δ flakes featuring surface degeneration |
| title_sort | characterizing anomalous peaks in the resistance temperature profile of bi2sr2cacu2o8 δ flakes featuring surface degeneration |
| topic | Engineering Surface degradation Temperature-dependent resistance |
| url | https://hdl.handle.net/10356/182634 |
| work_keys_str_mv | AT zhanghuili characterizinganomalouspeaksintheresistancetemperatureprofileofbi2sr2cacu2o8dflakesfeaturingsurfacedegeneration AT tianwanghao characterizinganomalouspeaksintheresistancetemperatureprofileofbi2sr2cacu2o8dflakesfeaturingsurfacedegeneration |