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Absolute value and ...
Absolute value and temperature dependence of the magnetic penetration depth in Ba(Co 0.074Fe 0.926) 2As 2
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Ofer, O. (author)
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Baglo, J. C. (author)
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Hossain, M. D. (author)
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Kiefl, R. F. (author)
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Hardy, W. N. (author)
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Thaler, A. (author)
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Kim, H. (author)
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Tanatar, M. A. (author)
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Canfield, P. C. (author)
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Prozorov, R. (author)
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Luke, G. M. (author)
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Morenzoni, E. (author)
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Saadaoui, H. (author)
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Suter, A. (author)
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Prokscha, T. (author)
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- Wojek, Bastian M. (author)
- KTH,Materialfysik, MF
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Salman, Z. (author)
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(creator_code:org_t)
- 2012
- 2012
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 85:6, s. 060506-
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The absolute value and temperature dependence of the in-plane magnetic penetration depth lambda have been measured on a single crystal of Ba(Co0.074Fe0.926)(2)As-2 using low-energy muon-spin rotation and microwave cavity perturbation. The magnetic field profiles in the Meissner state are consistent with a local London model beyond a depth of 15 nm. We determine the gap symmetry through measurements of the temperature dependence of the superfluid density which follows a two-gap s-wave model over the entire temperature range below T-c. While the intermediate to high temperature data is well fit by an energy gap model in the BCS-like (weak-coupling) limit, a second smaller gap becomes apparent at low temperatures.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Mu-Sr; Superconductor; Yba2cu3o6.95; Surface; Psi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ofer, O.
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Baglo, J. C.
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Hossain, M. D.
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Kiefl, R. F.
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Hardy, W. N.
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Thaler, A.
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show more...
-
Kim, H.
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Tanatar, M. A.
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Canfield, P. C.
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Prozorov, R.
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Luke, G. M.
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Morenzoni, E.
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Saadaoui, H.
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Suter, A.
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Prokscha, T.
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Wojek, Bastian M ...
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Salman, Z.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology