Journal article
Evolution of the superconducting properties in FeSe1-xSx
Physical review. B, v 92(23)
07 Dec 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We present scanning tunneling microscopy and spectroscopy measurements on FeSe1-xSx single crystals with x = 0, 0.04, and 0.09. The S substitution into the Se site is equivalent to a positive chemical pressure, since S and Se have the same valence and S has a smaller ionic radius than Se. The subsequent changes in the electronic structure of FeSe induce a decrease of the structural transition temperature and a small increase in the superconducting critical temperature. The evolution of the gaps with increasing S concentration suggests an increase of the hole Fermi surface. Moreover, the vortex core anisotropy, that likely reflects the Fermi surface anisotropy, is strongly suppressed by the S substitution.
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Details
- Title
- Evolution of the superconducting properties in FeSe1-xSx
- Creators
- S. A. Moore - Temple UniversityJ. L. Curtis - Drexel UniversityC. Di Giorgio - Temple UniversityE. Lechner - Temple UniversityM. Abdel-Hafiez - Center for High Pressure Science and Technology Advanced ResearchO. S. Volkova - National University of Science and Technology “MISiS,” Moscow 119049, RussiaA. N. Vasiliev - National University of Science and Technology “MISiS,” Moscow 119049, RussiaD. A. Chareev - Institute of Experimental MineralogyG. Karapetrov - Drexel UniversityM. Iavarone - Temple University
- Publication Details
- Physical review. B, v 92(23)
- Publisher
- Amer Physical Soc
- Number of pages
- 8
- Grant note
- MIUR (Ministry of Education, Universities and Research of the Italian Government); Ministry of Education, Universities and Research (MIUR) FSAX-14-60108-0; OISE-14-601090 / U.S, Civilian Research and Development Foundation (CRDF) K4-2015-020 / Ministry of Education and Science of the Russian Federation; Ministry of Education and Science, Russian Federation DE-SC0004556 / U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000366086300006
- Scopus ID
- 2-s2.0-84950322172
- Other Identifier
- 991019168060704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter