Published January 2009
| Published
Journal Article
Open
Observation of vortices and hidden pseudogap from scanning tunneling spectroscopic studies of the electron-doped cuprate superconductor Sr0.9La0.1CuO2
Abstract
We present the first demonstration of vortices in an electron-type cuprate superconductor, the highest Tc(=43 K) electron-type cuprate Sr0.9La0.1CuO2. Our spatially resolved quasiparticle tunneling spectra reveal a hidden low-energy pseudogap inside the vortex core and unconventional spectral evolution with temperature and magnetic field. These results cannot be easily explained by the scenario of pure superconductivity in the ground state of high-Tc superconductivity.
Additional Information
© 2009 EPLA. Received 2 September 2008, accepted for publication 27 November 2008. Published 7 January 2009. Print publication: Issue 1 (January 2009). The work at Caltech was jointly supported by the Moore Foundation and the Kavli Foundation through the Kavli Nanoscience Institute at Caltech, and the NSF Grant DMR-0405088. The work at Sogang University was supported by the Center of Superconductivity from the program of Acceleration Research of MOST/KOSEF of Korea and Special fund of Sogang University. ADB acknowledges the support of Intel Graduate Fellowship.Attached Files
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Additional details
- Eprint ID
- 12956
- Resolver ID
- CaltechAUTHORS:TEAepl09
- Gordon and Betty Moore Foundation
- Kavli Nanoscience Institute
- DMR-0405088
- NSF
- Korea Science and Engineering Foundation
- Sogang University
- Intel
- Created
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2009-01-10Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute