Zeroth order phase transition in a holographic superconductor with single impurity
We investigate the single normal impurity effect in a superconductor by the holographic method. When the size of impurity is much smaller than the host superconductor, we can reproduce the Anderson theorem, which states that a conventional s-wave superconductor is robust to a normal (non-magnetic) i...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-08-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321315001856 |
| _version_ | 1818550353025564672 |
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| author | Hua Bi Zeng Hai-Qing Zhang |
| author_facet | Hua Bi Zeng Hai-Qing Zhang |
| author_sort | Hua Bi Zeng |
| collection | DOAJ |
| description | We investigate the single normal impurity effect in a superconductor by the holographic method. When the size of impurity is much smaller than the host superconductor, we can reproduce the Anderson theorem, which states that a conventional s-wave superconductor is robust to a normal (non-magnetic) impurity with small impurity strength. However, by increasing the size of the impurity in a fixed-size host superconductor, we find a decreasing critical temperature Tc of the host superconductor, which agrees with the results in condensed matter literatures. More importantly, the phase transition at the critical impurity strength (or the critical temperature) is of zeroth order. |
| first_indexed | 2024-12-12T08:45:19Z |
| format | Article |
| id | doaj.art-a51887401467495381cc8843f35daa62 |
| institution | Directory Open Access Journal |
| issn | 0550-3213 1873-1562 |
| language | English |
| last_indexed | 2024-12-12T08:45:19Z |
| publishDate | 2015-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj.art-a51887401467495381cc8843f35daa622022-12-22T00:30:36ZengElsevierNuclear Physics B0550-32131873-15622015-08-01897C27628810.1016/j.nuclphysb.2015.05.025Zeroth order phase transition in a holographic superconductor with single impurityHua Bi Zeng0Hai-Qing Zhang1School of Mathematics and Physics, Bohai University, JinZhou 121000, ChinaInstitute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The NetherlandsWe investigate the single normal impurity effect in a superconductor by the holographic method. When the size of impurity is much smaller than the host superconductor, we can reproduce the Anderson theorem, which states that a conventional s-wave superconductor is robust to a normal (non-magnetic) impurity with small impurity strength. However, by increasing the size of the impurity in a fixed-size host superconductor, we find a decreasing critical temperature Tc of the host superconductor, which agrees with the results in condensed matter literatures. More importantly, the phase transition at the critical impurity strength (or the critical temperature) is of zeroth order.http://www.sciencedirect.com/science/article/pii/S0550321315001856 |
| spellingShingle | Hua Bi Zeng Hai-Qing Zhang Zeroth order phase transition in a holographic superconductor with single impurity Nuclear Physics B |
| title | Zeroth order phase transition in a holographic superconductor with single impurity |
| title_full | Zeroth order phase transition in a holographic superconductor with single impurity |
| title_fullStr | Zeroth order phase transition in a holographic superconductor with single impurity |
| title_full_unstemmed | Zeroth order phase transition in a holographic superconductor with single impurity |
| title_short | Zeroth order phase transition in a holographic superconductor with single impurity |
| title_sort | zeroth order phase transition in a holographic superconductor with single impurity |
| url | http://www.sciencedirect.com/science/article/pii/S0550321315001856 |
| work_keys_str_mv | AT huabizeng zerothorderphasetransitioninaholographicsuperconductorwithsingleimpurity AT haiqingzhang zerothorderphasetransitioninaholographicsuperconductorwithsingleimpurity |