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Title: Dome – like variation of the superconducting gap anisotropy in Fe-based superconductors

Abstract

Experiments performed on different iron-based superconductors suggest a variety of possible structures of the superconducting energy gap, both nodeless and nodal. To understand the pairing mechanisms, it is important to identify common features in the behavior of different materials. Measurements of the temperature - dependent London penetration depth provide important information on the structure of the superconducting gap. We show that despite significant differences between different iron - based superconductors, there is a universal trend: the gap is least anisotropic at the optimal doping and its anisotropy increases upon the departure towards underdoped and overdoped ends of the ''superconducting dome''. As a result, this trend is not related to the presence of the long-range magnetic order in the underdoped state.

Authors:
 [1];  [1];  [1];  [1]
  1. Ames Laboratory (AMES), Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1127462
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series (Online)
Additional Journal Information:
Journal Volume: 449; Journal ID: ISSN 1742-6596
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Prozorov, R., Cho, K., Kim, H., and Tanatar, M. A. Dome – like variation of the superconducting gap anisotropy in Fe-based superconductors. United States: N. p., 2013. Web. doi:10.1088/1742-6596/449/1/012020.
Prozorov, R., Cho, K., Kim, H., & Tanatar, M. A. Dome – like variation of the superconducting gap anisotropy in Fe-based superconductors. United States. doi:10.1088/1742-6596/449/1/012020.
Prozorov, R., Cho, K., Kim, H., and Tanatar, M. A. Wed . "Dome – like variation of the superconducting gap anisotropy in Fe-based superconductors". United States. doi:10.1088/1742-6596/449/1/012020. https://www.osti.gov/servlets/purl/1127462.
@article{osti_1127462,
title = {Dome – like variation of the superconducting gap anisotropy in Fe-based superconductors},
author = {Prozorov, R. and Cho, K. and Kim, H. and Tanatar, M. A.},
abstractNote = {Experiments performed on different iron-based superconductors suggest a variety of possible structures of the superconducting energy gap, both nodeless and nodal. To understand the pairing mechanisms, it is important to identify common features in the behavior of different materials. Measurements of the temperature - dependent London penetration depth provide important information on the structure of the superconducting gap. We show that despite significant differences between different iron - based superconductors, there is a universal trend: the gap is least anisotropic at the optimal doping and its anisotropy increases upon the departure towards underdoped and overdoped ends of the ''superconducting dome''. As a result, this trend is not related to the presence of the long-range magnetic order in the underdoped state.},
doi = {10.1088/1742-6596/449/1/012020},
journal = {Journal of Physics. Conference Series (Online)},
issn = {1742-6596},
number = ,
volume = 449,
place = {United States},
year = {2013},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 4 works
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