Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2008
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| Online Access: | http://hdl.handle.net/1721.1/40920 |
| _version_ | 1826198753507278848 |
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| author | Yi, Ming, S.M. Massachusetts Institute of Technology |
| author2 | Eric W. Hudson. |
| author_facet | Eric W. Hudson. Yi, Ming, S.M. Massachusetts Institute of Technology |
| author_sort | Yi, Ming, S.M. Massachusetts Institute of Technology |
| collection | MIT |
| description | Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007. |
| first_indexed | 2024-09-23T11:09:33Z |
| format | Thesis |
| id | mit-1721.1/40920 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:09:33Z |
| publishDate | 2008 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/409202019-04-10T13:46:07Z Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x Yi, Ming, S.M. Massachusetts Institute of Technology Eric W. Hudson. Massachusetts Institute of Technology. Dept. of Physics. Massachusetts Institute of Technology. Dept. of Physics. Physics. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007. Includes bibliographical references (p. 51-56). The nature and behavior of electronic states in high temperature superconductors are the center of much debate. The pseudogap state, observed above the superconducting transition temperature Tc, is seen by some as a precursor to the superconducting state. Others view it as a competing phase. Recently, this discussion has focused on the number of energy gaps in the system. Some experiments indicate a single energy gap, implying that the pseudogap is a precursor state. Others indicate two, suggesting that it is a competing or coexisting phase. In this thesis, I report temperature dependent scanning tunneling spectroscopy of Pb-Bi2Sr2 CuO6+6 . I have developed a novel analytical method that reveals a new, narrow, homogeneous gap that vanishes near Tc, superimposed on the typically observed, inhomogeneous, broad gap, which is only weakly temperature dependent. These results not only support the two gap picture, but also explain previously troubling differences between scanning tunneling microscopy and other experimental measurements. by Ming Yi. S.B. 2008-03-27T18:23:29Z 2008-03-27T18:23:29Z 2007 2007 Thesis http://hdl.handle.net/1721.1/40920 212378084 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 56 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Physics. Yi, Ming, S.M. Massachusetts Institute of Technology Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title | Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title_full | Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title_fullStr | Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title_full_unstemmed | Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title_short | Imaging the two gaps of the high temperature superconductor Pb-Bi₂Sr₂CuO₆₊x |
| title_sort | imaging the two gaps of the high temperature superconductor pb bi₂sr₂cuo₆₊x |
| topic | Physics. |
| url | http://hdl.handle.net/1721.1/40920 |
| work_keys_str_mv | AT yimingsmmassachusettsinstituteoftechnology imagingthetwogapsofthehightemperaturesuperconductorpbbi2sr2cuo6x |