نتایج جستجو برای: iron based superconductor
تعداد نتایج: 3065996 فیلتر نتایج به سال:
The discovery in fluorine doped LaFeAsO superconductor with TC = 26 K was reported in February of 2008[1]. This discovery inspired researchers around the globe to study this unusual family of materials, which contain as their essential feature a square net of iron in the formal oxidation state Fe. In the following month of 2008, hundreds of papers were published on these and related compounds a...
Fluctuations around an antiferromagnetic quantum critical point (QCP) are believed to lead to unconventional superconductivity and in some cases to high-temperature superconductivity. However, the exact mechanism by which this occurs remains poorly understood. The iron-pnictide superconductor BaFe2(As(1-x)P(x))2 is perhaps the clearest example to date of a high-temperature quantum critical supe...
Submitted for the MAR13 Meeting of The American Physical Society Magnetic decoration imaging of a superconductor-ferromagnet bilayerMAXIMMARCHEVSKY, Lawrence Berkeley National Laboratory —Magnetic decoration imaging technique is used to study flux distribution and local vortex order in a superconducting Nb film deposited on a ferromagnetic yttrium-iron garnet substrate. Ambient field-cooled dec...
superconductor fault current limiter (sfcl) is an effective device to suppress high fault currents. this paper presents a comparative study of resistive and inductive fault current limiters from transient stability point of view. appropriate location and type of the limiters in a hv substation is selected by a qualitative approach based on the equal area criterion. study system is simulated by...
The iron-based oxypnictide superconductor SmFeAsO0.8F0.2 was synthesized under high-pressure and investigated by measuring dc magnetic susceptibility. zero-field cooled (ZFC) susceptibility confirmed the bulk superconductivity of sample with a critical temperature Tc = 50 K significant jump in magnetization at 4.3 K, usually attributed to antiferromagnetic ordering Sm3+ ions this system. Since ...
Recent resonant inelastic x-ray scattering (RIXS) experiments have detected a significant high-energy spin-excitation anisotropy in the nematic phase of enigmatic iron-based superconductor FeSe, whose origin remains controversial. We apply an itinerant model previously used to describe as measured by neutron measurements, with magnetic fluctuations included within RPA approximation. The calcula...
In correlated metals derived from Mott insulators, the motion of an electron is impeded by Coulomb repulsion due to other electrons. This phenomenon causes a substantial reduction in the electron’s kinetic energy, leading to remarkable experimental manifestations in optical spectroscopy1. The hightransition-temperature (Tc) superconducting cuprates are perhaps the most studied examples of such ...
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