Phase diagram and gap anisotropy in iron-pnictide superconductors

نویسندگان

  • Hiroaki Ikeda
  • Ryotaro Arita
  • Jan Kuneš
چکیده

Hiroaki Ikeda,1,* Ryotaro Arita,2,3,4 and Jan Kuneš5,6 1Department of Physics, Kyoto University, Kyoto 606-8502, Japan 2Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan 3TRIP, JST, Sanbancho, Chiyoda, Tokyo 102-0075, Japan 4CREST, JST, Hongo, Tokyo 113-8656, Japan 5Center for Electronic Correlations and Magnetism, Theoretical Physics III, University of Augsburg, 86135 Augsburg, Germany 6Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 53 Praha 6, Czech Republic Received 9 December 2009; revised manuscript received 13 January 2010; published 5 February 2010

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Intrinsic pinning on structural domains in underdoped single crystals of Ba(Fe1−xCox)2As2

Critical current density was studied in single crystals of Ba Fe1−xCox 2As2 for the values of x spanning the entire doping phase diagram. A noticeable enhancement was found for slightly underdoped crystals with the peak at x=0.058. Using a combination of polarized-light imaging, x-ray diffraction and magnetic measurements we associate this behavior with the intrinsic pinning on structural domai...

متن کامل

Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron-Pnictide High-Tc Superconductors

Last year, 22 years after the discovery of high-Tc superconductivity in the cuprates, superconductivity was discovered up to 55K in a second family of materials: the iron-pnictides. This new discovery has generated tremendous excitement for several reasons. First, there is hope that the iron-pnictides will finally provide the foil necessary to understand the enormous yet puzzling body of resear...

متن کامل

Comparative Review on Thin Film Growth of Iron-Based Superconductors

Since the discovery of the novel iron-based superconductors, both theoretical and experimental studies have been performed intensively. Because iron-based superconductors have a smaller anisotropy than high-Tc cuprates and a high superconducting transition temperature, there have been a lot of researchers working on the film fabrication of iron-based superconductors and their application. Accor...

متن کامل

Titanium Pnictide Oxide Superconductors

In 2012, a novel superconductor BaTi2Sb2O was found in the layered titanium pnictide oxides ATi2Pn2O. A related superconductor BaTi2Bi2O was subsequently discovered in 2013. The structure of these materials consists of alternate stacking of superconducting Ti2Pn2O layers and Ba blocking layers, which is somewhat similar to high-Tc cuprates since the Ti2Pn2O layer contains an anti-CuO2-type Ti2O...

متن کامل

Phase diagram and a possible unified description of intercalated iron selenide superconductors.

We propose a theoretical description of the phase diagram and physical properties in A(2)Fe(4)Se(5)-type (A=K, Tl) compounds based on a coexistent local moment and itinerant electron picture. Using neutron scattering and angle-resolved photoemission spectroscopy measurements to fix the general structure of the local moment and itinerant Fermi pockets, we find a superconducting phase with s-wave...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010