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Relativistic Fermion on a Ring : Energy Spectrum and Persistent Current
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-17
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The energy and persistent current spectra for a relativistic fermion on a ring are studied in detail.
The nonlinear nature of persistent current in relativistic regime and its dependence on particle mass and ring radius are analysed thoroughly.
For a particular ring radius, we find the existence of a critical mass at which the single ring current does not depend on the flux.
In lower mass regime, the total current spectrum shows plateaus at different height which appears periodically.
The susceptibility as well shows periodic nature with amplitude depending on particle mass.
As we move from higher mass to lower mass regime, we find that the system turns into paramagnetic from diamagnetic.
We also show that same behaviour is observed if one vary the radius of the ring for a fixed particle mass.
Hence the larger ring will be diamagnetic while the smaller one will be paramagnetic.
Finally we propose an experiment to verify our findings.
American Psychological Association (APA)
Ghosh, Sumit. 2013. Relativistic Fermion on a Ring : Energy Spectrum and Persistent Current. Advances in Condensed Matter Physics،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-483414
Modern Language Association (MLA)
Ghosh, Sumit. Relativistic Fermion on a Ring : Energy Spectrum and Persistent Current. Advances in Condensed Matter Physics No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-483414
American Medical Association (AMA)
Ghosh, Sumit. Relativistic Fermion on a Ring : Energy Spectrum and Persistent Current. Advances in Condensed Matter Physics. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-483414
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483414