@article{ ISI:000284398800001,
Author = {Aguilar, R. Valdes and Bilbro, L. S. and Lee, S. and Bark, C. W. and
   Jiang, J. and Weiss, J. D. and Hellstrom, E. E. and Larbalestier, D. C.
   and Eom, C. B. and Armitage, N. P.},
Title = {{Pair-breaking effects and coherence peak in the terahertz conductivity
   of superconducting BaFe2-2xCo2xAs2 thin films}},
Journal = {{PHYSICAL REVIEW B}},
Year = {{2010}},
Volume = {{82}},
Number = {{18}},
Month = {{NOV 19}},
Abstract = {{We report a study of high quality pnictide superconductor
   BaFe1.84Co0.16As2 epitaxial thin films using time-domain terahertz (THz)
   spectroscopy. Near T-c we find evidence for a coherence peak and
   qualitative agreement with the weak-coupling Mattis-Bardeen form of the
   conductivity. The real part of the THz conductivity is found to be not
   fully suppressed at low temperature and sigma(2) is significantly
   smaller than the Matthis-Bardeen expectation. The temperature dependence
   of the penetration depth lambda follows a power law with an unusually
   high exponent of 3.1. We interpret these results as consistent with
   impurity scattering-induced pair breaking. Taken together our results
   are strong evidence for an extended s +/- order-parameter symmetry.}},
DOI = {{10.1103/PhysRevB.82.180514}},
Article-Number = {{180514}},
ISSN = {{1098-0121}},
ResearcherID-Numbers = {{Valdes Aguilar, Rolando/A-6637-2012
   Eom, Chang-Beom/I-5567-2014
   Bark, Chung Wung/B-9534-2014
   Lee, Sanghan/C-8876-2012
   Larbalestier, David/B-2277-2008
   Jiang, Jianyi/F-2549-2017
   }},
ORCID-Numbers = {{Valdes Aguilar, Rolando/0000-0002-4321-4792
   Bark, Chung Wung/0000-0002-9394-4240
   Lee, Sanghan/0000-0002-5807-864X
   Larbalestier, David/0000-0001-7098-7208
   Jiang, Jianyi/0000-0002-1094-2013
   WEISS, JEREMY/0000-0003-0026-3049}},
Unique-ID = {{ISI:000284398800001}},
}

{"_id":"jCMsWAMi2ZrBQpGHb","bibbaseid":"aguilar-bilbro-lee-bark-jiang-weiss-hellstrom-larbalestier-etal-pairbreakingeffectsandcoherencepeakintheterahertzconductivityofsuperconductingbafe22xco2xas2thinfilms-2010","downloads":0,"creationDate":"2018-09-17T23:43:09.608Z","title":"Pair-breaking effects and coherence peak in the terahertz conductivity of superconducting BaFe2-2xCo2xAs2 thin films","author_short":["Aguilar, R. V.","Bilbro, L. S.","Lee, S.","Bark, C. W.","Jiang, J.","Weiss, J. D.","Hellstrom, E. E.","Larbalestier, D. C.","Eom, C. B.","Armitage, N. P."],"year":2010,"bibtype":"article","biburl":"http://oxide.engr.wisc.edu/newWebsite/papers/oxide.bib","bibdata":{"bibtype":"article","type":"article","author":[{"propositions":[],"lastnames":["Aguilar"],"firstnames":["R.","Valdes"],"suffixes":[]},{"propositions":[],"lastnames":["Bilbro"],"firstnames":["L.","S."],"suffixes":[]},{"propositions":[],"lastnames":["Lee"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Bark"],"firstnames":["C.","W."],"suffixes":[]},{"propositions":[],"lastnames":["Jiang"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Weiss"],"firstnames":["J.","D."],"suffixes":[]},{"propositions":[],"lastnames":["Hellstrom"],"firstnames":["E.","E."],"suffixes":[]},{"propositions":[],"lastnames":["Larbalestier"],"firstnames":["D.","C."],"suffixes":[]},{"propositions":[],"lastnames":["Eom"],"firstnames":["C.","B."],"suffixes":[]},{"propositions":[],"lastnames":["Armitage"],"firstnames":["N.","P."],"suffixes":[]}],"title":"Pair-breaking effects and coherence peak in the terahertz conductivity of superconducting BaFe2-2xCo2xAs2 thin films","journal":"PHYSICAL REVIEW B","year":"2010","volume":"82","number":"18","month":"NOV 19","abstract":"We report a study of high quality pnictide superconductor BaFe1.84Co0.16As2 epitaxial thin films using time-domain terahertz (THz) spectroscopy. Near T-c we find evidence for a coherence peak and qualitative agreement with the weak-coupling Mattis-Bardeen form of the conductivity. The real part of the THz conductivity is found to be not fully suppressed at low temperature and sigma(2) is significantly smaller than the Matthis-Bardeen expectation. The temperature dependence of the penetration depth lambda follows a power law with an unusually high exponent of 3.1. We interpret these results as consistent with impurity scattering-induced pair breaking. Taken together our results are strong evidence for an extended s +/- order-parameter symmetry.","doi":"10.1103/PhysRevB.82.180514","article-number":"180514","issn":"1098-0121","researcherid-numbers":"Valdes Aguilar, Rolando/A-6637-2012 Eom, Chang-Beom/I-5567-2014 Bark, Chung Wung/B-9534-2014 Lee, Sanghan/C-8876-2012 Larbalestier, David/B-2277-2008 Jiang, Jianyi/F-2549-2017 ","orcid-numbers":"Valdes Aguilar, Rolando/0000-0002-4321-4792 Bark, Chung Wung/0000-0002-9394-4240 Lee, Sanghan/0000-0002-5807-864X Larbalestier, David/0000-0001-7098-7208 Jiang, Jianyi/0000-0002-1094-2013 WEISS, JEREMY/0000-0003-0026-3049","unique-id":"ISI:000284398800001","bibtex":"@article{ ISI:000284398800001,\nAuthor = {Aguilar, R. Valdes and Bilbro, L. S. and Lee, S. and Bark, C. W. and\n Jiang, J. and Weiss, J. D. and Hellstrom, E. E. and Larbalestier, D. C.\n and Eom, C. B. and Armitage, N. P.},\nTitle = {{Pair-breaking effects and coherence peak in the terahertz conductivity\n of superconducting BaFe2-2xCo2xAs2 thin films}},\nJournal = {{PHYSICAL REVIEW B}},\nYear = {{2010}},\nVolume = {{82}},\nNumber = {{18}},\nMonth = {{NOV 19}},\nAbstract = {{We report a study of high quality pnictide superconductor\n BaFe1.84Co0.16As2 epitaxial thin films using time-domain terahertz (THz)\n spectroscopy. Near T-c we find evidence for a coherence peak and\n qualitative agreement with the weak-coupling Mattis-Bardeen form of the\n conductivity. The real part of the THz conductivity is found to be not\n fully suppressed at low temperature and sigma(2) is significantly\n smaller than the Matthis-Bardeen expectation. The temperature dependence\n of the penetration depth lambda follows a power law with an unusually\n high exponent of 3.1. We interpret these results as consistent with\n impurity scattering-induced pair breaking. Taken together our results\n are strong evidence for an extended s +/- order-parameter symmetry.}},\nDOI = {{10.1103/PhysRevB.82.180514}},\nArticle-Number = {{180514}},\nISSN = {{1098-0121}},\nResearcherID-Numbers = {{Valdes Aguilar, Rolando/A-6637-2012\n Eom, Chang-Beom/I-5567-2014\n Bark, Chung Wung/B-9534-2014\n Lee, Sanghan/C-8876-2012\n Larbalestier, David/B-2277-2008\n Jiang, Jianyi/F-2549-2017\n }},\nORCID-Numbers = {{Valdes Aguilar, Rolando/0000-0002-4321-4792\n Bark, Chung Wung/0000-0002-9394-4240\n Lee, Sanghan/0000-0002-5807-864X\n Larbalestier, David/0000-0001-7098-7208\n Jiang, Jianyi/0000-0002-1094-2013\n WEISS, JEREMY/0000-0003-0026-3049}},\nUnique-ID = {{ISI:000284398800001}},\n}\n\n","author_short":["Aguilar, R. V.","Bilbro, L. S.","Lee, S.","Bark, C. W.","Jiang, J.","Weiss, J. D.","Hellstrom, E. E.","Larbalestier, D. C.","Eom, C. B.","Armitage, N. 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