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In Plane Vortex Dynamic Anisotropy in the Iron Deficient Fe1-ySe Superconductor

Ale Crivillero, María Victoria; Amigó, María Lourdes; Franco, Diego Gaspar; Badía Majós, A.; Guimpel, Julio Juan; Nieva, Gladys Leonor (Springer/Plenum Publishers, 2015-04)

We present electrical transport measurements in the superconducting dissipative state of crystalline iron deficient Fe1−ySe samples. These iron deficient samples were synthesized using NaCl/KCl flux and are characterized ...

Multifractal scaling of flux penetration in the Iron-based Superconductor Ba(Fe0.925Co0.075)2As2

Grisolia, Mathieu; Van Der Beek, Cornelis Jacominus; Fasano, Yanina; Forget, Anne; Colson, Dorothée (American Physical Society, 2013-03-26)

The penetration of magnetic flux fronts in the optimally doped iron based superconductor<br />Ba(Fe0:925Co0:075)2As2 is studied by means of magneto-optic imaging and Bitter decoration. The higher-order analysis of roughening ...

Disorder, critical currents, and vortex pinning energies in isovalently substituted BaFe2(As1_xPx)2

Demirdis, Sultan; Fasano, Yanina; Kasahara, S.; Terashima, T.; Shibauchi, T.; Matsuda, Y.; Konczykowski, Marcin; Pastoriza, Hernan; Van Der Beek, C. J. (American Physical Society, 2013-03)

We present a comprehensive overview of vortex pinning in single crystals of the isovalently substituted iron-based superconductor BaFe2(As1−xPx)2, a material that qualifies as an archetypical clean superconductor, containing ...

Increment of the collective pinning energy in Na1 − xCa x Fe2As2 single crystals with random point defects introduced by proton irradiation

Haberkorn, Nestor Fabian; Kim, Jeehoon; Maiorov, B.; Usov, I.; Chen, G. F.; Yu, W.; Civale, L. (IOP Publishing, 2014-08)

We study the influence of random point defects introduced by 3 MeV proton irradiation (doses 1 × 1016 and 2 × 1016 cm2) on the vortex dynamics of Na x Ca1 − xFe2As2 (x = 0.5 and x = 0.75) single crystals. Our results ...

Phase transitions and electronic fluctuations in iron-based pnictides = Transições de fase e flutuações eletrônicas em pnictídeos à base de ferroTransições de fase e flutuações eletrônicas em pnictídeos à base de ferro

Kaneko, Ulisses Ferreira, 1984- ([s.n.], 2017)

Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides

Querales Flores, Jose Daniel; Ventura, Cecilia Ileana; Citro, R.; Rodríguez Núñez, J. J. (Elsevier Science, 2016-04)

Using a second-order perturbative Green's functions approach we determined the normal state spectral function A(k→,ω) employing a minimal model for ferropnictides. Used before to study magnetic fluctuations and superconducting ...

Combined experimental and theoretical studies of pressure effects in La2Sb

Goethe-Universität Frankfurt; Universidade Estadual Paulista (UNESP); Clarendon Laboratory (2017-01-01)

The 5 K superconductor La2Sb shares some structural similarities with the iron-pnictides and -chalgogenides, especially the so-called 122-compounds, despite lacking a 3d-metal component. In order to look for similarities ...

Investigação da estrutura eletrônica de materiais complexos através da espectroscopia de fotoemissão resolvida em ânguloInvestigation of the electronic structure of complex materials by means of angle resolved photoemission spectroscopy

Pakuszewski, Kevin Raduenz, 1992- ([s.n.], 2017)

Possible Unconventional Superconductivity In Substituted Bafe 2 As 2 Revealed By Magnetic Pair-breaking Studies

Rosa P.F.S.; Adriano C.; Garitezi T.M.; Piva M.M.; Mydeen K.; Grant T.; Fisk Z.; Nicklas M.; Urbano R.R.; Fernandes R.M.; Pagliuso P.G. (Nature Publishing Group, 2014)

Síntese e caracterização de monocristais de 'Sr IND. 1-x' 'Eu IND. X' 'Fe IND. 2' 'As IND. 2' preparados pelo método do fluxo de InSynthesis and characterization of 'Sr IND. 1-x' 'Eu IND. X' 'Fe IND. 2' 'As IND. 2' single crystals prepared by the In flux method

Radaelli, Matheus, 1993- ([s.n.], 2017)