Focus Session: Iron Based Superconductors -- Optics, Heat Capacity, Thermopower

Presentations

• Optical Investigation of the Charge Dynamics in Ba(Co$_x$Fe$_{1-x}$)$_2$As$_2$

  COFFEE_KLATCH · Invited

  March 23, 2011, 11:15 AM – March 23, 2011, 11:51 AM

  Authors

  • Leonardo Degiorgi

    • ETH-Zurich
    • ETH Zurich

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• In-plane and c-axis optical spectroscopy study on 122 Fe-pnictides

  ORAL

  March 23, 2011, 11:51 AM – March 23, 2011, 12:03 PM

  Authors

  • Nan Lin Wang

    • Institute of Physics, Chinese Academy of Sciences

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• Optical signature of sub-gap absorption in the superconducting state of Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$

  ORAL

  March 23, 2011, 12:03 PM – March 23, 2011, 12:15 PM

  Authors

  • Urmas Nagel

  • T. R\~o\~om

    • Nat.-l Inst. of Chem. Phys. \& Biophys., Tallinn, Estonia

  • R.P.S.M. Lobo

  • Y.M. Dai

    • LPEM, CNRS, UPMC, ESPCI-ParisTech, Paris, France

  • J. Carbotte

  • T. Timusk

    • McMaster Univ., Hamilton, Canada

  • D. Colson

    • CEA, IRAMIS, SPEC, Gif sur Yvette, France

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• Femtosecond low-energy dynamics of superconducting and spin-density wave gaps in pnictides

  ORAL

  March 23, 2011, 12:15 PM – March 23, 2011, 12:27 PM

  Authors

  • K.W. Kim

  • A. Pashkin

  • M. Beyer

  • H. Sch\"{a}fer

  • M. Porer

  • T. Wolf

  • C. Bernhard

  • J. Demsar

  • R. Huber

  • A. Leitenstorfer

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• Optical properties of BaFe$_{\mathbf{1.85}}$Co$_{\mathbf{0.15}}$As$_{\mathbf 2}$

  ORAL

  March 23, 2011, 12:27 PM – March 23, 2011, 12:39 PM

  Authors

  • J.J. Tu

    • Dept.~of Physics, CCNY/CUNY, New York

  • L.J. LI

  • G.H. Cao

  • Z.A. Xu

    • Dept.~of Physics, Zhejiang University, Hangzhou 310027, China

  • C.C. Homes

    • Condensed Matter Physics and Materials Science Dept., Brookhaven National Laboratory, Upton, New York

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• Raman investigation of the magneto-structural transition in electron doped Ba(FeAs)$_2$

  ORAL

  March 23, 2011, 12:39 PM – March 23, 2011, 12:51 PM

  Authors

  • Yann Gallais

    • Universite Paris Diderot
    • Laboratoire Materiaux et Phenomenes Quantiques - Paris 7
    • Laboratoire Materiaux et Phenomenes Quantiques UMR 7162 CNRS Universite Paris Diderot, Paris, France

  • Ludivine Chauviere

    • Universite Paris Diderot
    • Laboratoire Materiaux et Phenomenes Quantiques UMR 7162 CNRS Universite Paris Diderot, Paris, France

  • Maximilien Cazayous

    • Universite Paris Diderot
    • Laboratoire Materiaux et Phenomenes Quantiques, Paris, France
    • Laboratoire Materiaux et Phenomenes Quantiques - Paris 7
    • Laboratoire Materiaux et Phenomenes Quantiques UMR 7162 CNRS Universite Paris Diderot, Paris, France

  • Marie-Aude Measson

    • Universite Paris Diderot
    • Laboratoire Materiaux et Phenomenes Quantiques - Paris 7
    • Laboratoire Materiaux et Phenomenes Quantiques UMR 7162 CNRS Universite Paris Diderot, Paris, France

  • Alain Sacuto

    • Laboratoire Mat\'eriaux et Ph\'enom\`enes Quantiques, CNRS Universit\'e Paris Diderot - Paris 7, Paris Cedex 13, France
    • Universite Paris Diderot
    • Laboratoire Materiaux et Phenomenes Quantiques - Paris 7
    • Laboratoire Materiaux et Phenomenes Quantiques UMR 7162 CNRS Universite Paris Diderot, Paris, France

  • Dorothee Colson

    • SPEC CEA Saclay
    • CEA Saclay IRAMIS, SPEC CNRS URA 2464, Gif-sur-Yvette, France

  • Anne Forget

    • SPEC CEA Saclay
    • CEA Saclay IRAMIS, SPEC CNRS URA 2464, Gif-sur-Yvette, France

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• Effect of annealing on the gap structure of Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$: low temperature specific heat studies

  ORAL

  March 23, 2011, 12:51 PM – March 23, 2011, 1:03 PM

  Authors

  • Krzysztof Gofryk

    • MPA-10, Los Alamos National Laboratory
    • Los Alamos National Laboratory

  • F. Ronning

  • E.D. Bauer

  • J.D. Thompson

    • Los Alamos National Laboratory

  • A.B. Vorontsov

    • Montana State University

  • I. Vekhter

    • Louisiana State University

  • A.S. Sefat

    • Oak Ridge National Laboratory

  • T. Imai

    • McMaster University

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• The low-temperature specific heat of Co-doped BaFe$_{2}$As$_{2}$

  ORAL

  March 23, 2011, 1:03 PM – March 23, 2011, 1:15 PM

  Authors

  • Jiunn-Yuan Lin

    • Institute of Physics, National Chiao Tung University, Hsinchu 30010, Taiwan

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• The Electronic Specific Heat of Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$ from 2K to 380K

  ORAL

  March 23, 2011, 1:15 PM – March 23, 2011, 1:27 PM

  Authors

  • James Storey

    • University of Cambridge

  • John Loram

    • University of Cambridge

  • John Cooper

    • Cavendish Lab., Cambridge University
    • University of Cambridge
    • Cavendish Laboratory, University of Cambridge, CB3 0HE, U.K

  • Z. Bukowski

    • ETH Zurich
    • Solid State Physics, ETH Zurich
    • Lab. for Solid State Physics, ETH Zurich, CH-8093 Zurich

  • Janusz Karpinski

    • ETH Zurich
    • Solid State Physics, ETH Zurich
    • Solid State Physics, ETH Zurich, Switzerland

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• Specific Heat to 35 T in P-doped and Co-doped BaFe$_{2}$As$_{2}$: Evidence for Nodes or Not?

  ORAL

  March 23, 2011, 1:27 PM – March 23, 2011, 1:39 PM

  Authors

  • G.R. Stewart

    • Physics, University of Florida

  • J.S. Kim

    • Physics, University of Florida

  • Peter Hirschfeld

    • Department of Physics, University of Florida, Gainesville, FL 32611, USA
    • Physics, University of Florida
    • University of Florida
    • Department of Physics, University of Florida, Gainesville, Florida 32611, USA

  • Filip Ronning

    • Los Alamos National Laboratory
    • MPA-10, Los Alamos National Laboratory
    • Los Alamos National Lab, MPA-CMMS
    • Los Alamos National Laboratory, Los Alamos, NM 87545

  • Krzysztof Gofryk

    • MPA-10, Los Alamos National Laboratory
    • Los Alamos National Laboratory

  • A.S. Sefat

    • ORNL
    • Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
    • Oak Ridge National Laboratory
    • MST Division, Oak Ridge National Laboratory
    • ORNL, Oak Ridge, TN
    • Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
    • Materials Science \& Technology Division, ORNL, Oak Ridge, TN 37831, USA

  • S. Kasahara

    • Kyoto University
    • Physics, Kyoto University
    • Research Center for Low Temperature and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
    • Department of Physics, Kyoto University, Kyoto 606-8502, Japan

  • T. Shibauchi

    • Physics, Kyoto University
    • Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
    • Department of Physics, Kyoto University, Kyoto 606-8502, Japan

  • T. Terashima

    • Physics, Kyoto University

  • Yuji Matsuda

    • Physics, Kyoto University
    • Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
    • Department of Physics, Kyoto University, Kyoto 606-8502, Japan

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• Thermoelectric power of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$ and Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$: possible changes in Fermi surface with and without changes in electorn count

  ORAL

  March 23, 2011, 1:39 PM – March 23, 2011, 1:51 PM

  Authors

  • Eundeok Mun

  • Alex N. Thaler

  • Halyna Hodovanets

  • Sergey L. Bud'ko

  • Paul C. Canfield

    • Ames Laboratoty/ Iowa State University, Ames, IA 50011, USA

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• Nernst and Seebeck coefficients of the iron-pncitide superconductor Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$

  ORAL

  March 23, 2011, 1:51 PM – March 23, 2011, 2:03 PM

  Authors

  • Xigang Luo

    • Universite de Sherbrooke
    • Department de Physique, Universite de Sherbrooke, Sherbrook, Quebec J1K2R1, Canada

  • H. Shakeripour

    • Universite de Sherbrooke

  • J. Chang

    • Universite de Sherbrooke

  • F. Laliberte

    • Universite de Sherbrooke

  • J. -Ph. Reid

    • Universite de Sherbrooke

  • N. Doiron-Leyraud

    • Universite de Sherbrooke

  • L. Taillefer

    • Universite de Sherbrooke

  • M.A. Tanatar

    • Ames Laboratory

  • R. Prozorov

    • Ames Laboratory

  • H.Q. Luo

    • Institute of Physics, Beijing

  • Z.S. Wang

    • Institute of Physics, Beijing

  • H.-H. Wen

    • Institute of Physics, Beijing

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• Coherence peak and pair-breaking effects in the ac conductivity of BaFe$_{2-2x}$Co$_{2x}$As$_2$ epitaxial thin films

  ORAL

  March 23, 2011, 2:03 PM – March 23, 2011, 2:15 PM

  Authors

  • Peter Armitage

    • Johns Hopkins University

  • Rolando Valdes Aguilar

    • Johns Hopkins University

  • Lucas Bilbro

    • The Johns Hopkins University
    • Johns Hopkins University

  • S. Lee

  • C.W. Bark

  • C.B. Eom

    • University of Wisconsin

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