Magnetotransport studies of optimally doped Sr(Fe1−x Co x )2As2
نویسندگان
چکیده
منابع مشابه
Magnetotransport in Co-doped ZnO nanowires.
Electrical and magnetotransport measurements were performed on individual Co-doped ZnO dilute magnetic semiconductor nanowires. The electron transport studies show that the electron mobility could be as high as 75 cm(2)/(V.s), and we observed positive magnetoresistivity (MR) at low magnetic field and negative MR at higher magnetic field. s-d exchange-induced spin splitting of the conduction ban...
متن کاملMillimeter-wave surface impedance of optimally-doped Ba(Fe1−xCox)2As2 single crystals
Millimeter-wave surface impedance of optimally-doped Ba(Fe1−xCox)2As2 single crystals A. Barannik,1 N. T. Cherpak,1,* M. A. Tanatar,2 S. Vitusevich,3 V. Skresanov,1 P. C. Canfield,2,4 and R. Prozorov2,4,† 1Solid State Radiophysics Department, Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, Kharkiv, Ukraine 2Ames Laboratory, Ames, Iowa 50011, USA 3Peter Grünbe...
متن کاملSplitting of resonance excitations in nearly optimally doped Ba(Fe0.94Co0.06)2As2: an inelastic neutron scattering study with polarization analysis.
Magnetic excitations in Ba(Fe0.94Co0.06)2As2: are studied by polarized inelastic neutron scattering above and below the superconducting transition. In the superconducting state, we find clear evidence for two resonancelike excitations. At a higher energy of about 8 meV, there is an isotropic resonance mode with weak dispersion along the c direction. In addition, we find a lower excitation at 4 ...
متن کاملLow - energy spectroscopic mapping studies in optimally - doped Ca 2 x Na x CuO 2 Cl 2
We performed high-resolution scanning tunneling microscopy/spectroscopy on an optimally-doped Ca2 xNaxCuO2Cl2 crystal with Tc 25 K. The so-called ‘‘checkerboard’’ local-density-of-state modulation previously found in heavily underdoped regime also manifests in the spectroscopic map of the optimally-doped sample. In addition, spatially-inhomogeneous energy gap with peaks at the gap edges is obse...
متن کاملMeasurement of a sign-changing two-gap superconducting phase in electron-doped Ba(Fe(1-x)Co(x))2As2 single crystals using scanning tunneling spectroscopy.
Scanning tunneling spectroscopic studies of Ba(Fe(1-x)Co(x))(2)As(2) (x=0.06, 0.12) single crystals reveal direct evidence for predominantly two-gap superconductivity. These gaps decrease with increasing temperature and vanish above the superconducting transition T(c). The two-gap nature and the slightly doping- and energy-dependent quasiparticle scattering interferences near the wave vectors (...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2018
ISSN: 0953-8984,1361-648X
DOI: 10.1088/1361-648x/aaeb16