The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility
The 1/N expansion method has been used to investigate the problem of an electron moving in a two-dimensional semiconductor quantum ring with an off-center impurity. The energy spectra, magnetization, and magnetic susceptibility have been calculated as a function of the magnetic field, impurity posit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Chemical Physics Impact |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667022423000348 |
| _version_ | 1827922482700484608 |
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| author | Ayham Shaer Eshtiaq Hjaz Mohammad K. Elsaid |
| author_facet | Ayham Shaer Eshtiaq Hjaz Mohammad K. Elsaid |
| author_sort | Ayham Shaer |
| collection | DOAJ |
| description | The 1/N expansion method has been used to investigate the problem of an electron moving in a two-dimensional semiconductor quantum ring with an off-center impurity. The energy spectra, magnetization, and magnetic susceptibility have been calculated as a function of the magnetic field, impurity position, temperature, and quantum ring parameters. Interesting energy-level crossings attributed to QR confinement manifest themselves as low-temperature oscillations in the magnetization and magnetic susceptibility curves. On the contrary, the presence of impurity at the QR center eliminates these level crossings. This work shows that changing the impurity position can manipulate the magnetic field value correspondence to these diamagnetic-paramagnetic phase transitions. |
| first_indexed | 2024-03-13T04:43:20Z |
| format | Article |
| id | doaj.art-560b9b05313848f9ae564c7bce995f33 |
| institution | Directory Open Access Journal |
| issn | 2667-0224 |
| language | English |
| last_indexed | 2024-03-13T04:43:20Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj.art-560b9b05313848f9ae564c7bce995f332023-06-19T04:30:14ZengElsevierChemical Physics Impact2667-02242023-06-016100194The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibilityAyham Shaer0Eshtiaq Hjaz1Mohammad K. Elsaid2Corresponding author.; Physics Department, Faculty of Science, An- Najah National University, Nablus, West Bank, PalestinePhysics Department, Faculty of Science, An- Najah National University, Nablus, West Bank, PalestinePhysics Department, Faculty of Science, An- Najah National University, Nablus, West Bank, PalestineThe 1/N expansion method has been used to investigate the problem of an electron moving in a two-dimensional semiconductor quantum ring with an off-center impurity. The energy spectra, magnetization, and magnetic susceptibility have been calculated as a function of the magnetic field, impurity position, temperature, and quantum ring parameters. Interesting energy-level crossings attributed to QR confinement manifest themselves as low-temperature oscillations in the magnetization and magnetic susceptibility curves. On the contrary, the presence of impurity at the QR center eliminates these level crossings. This work shows that changing the impurity position can manipulate the magnetic field value correspondence to these diamagnetic-paramagnetic phase transitions.http://www.sciencedirect.com/science/article/pii/S2667022423000348Quantum ringOff-center impurityMagnetic susceptibilityDiamagnetic- paramagnetic phase transition |
| spellingShingle | Ayham Shaer Eshtiaq Hjaz Mohammad K. Elsaid The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility Chemical Physics Impact Quantum ring Off-center impurity Magnetic susceptibility Diamagnetic- paramagnetic phase transition |
| title | The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| title_full | The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| title_fullStr | The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| title_full_unstemmed | The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| title_short | The influence of off-centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| title_sort | influence of off centre donor impurity on the tuning of the quantum ring magnetic susceptibility |
| topic | Quantum ring Off-center impurity Magnetic susceptibility Diamagnetic- paramagnetic phase transition |
| url | http://www.sciencedirect.com/science/article/pii/S2667022423000348 |
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