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- Technische Universität DresdenDE676 papers
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8 papers · 2 filters
Circular dichroism and bilayer splitting in the normal state of underdoped (Pb,Bi)Sr(CaY)CuO and overdoped (Pb,Bi)SrCaCuO
S. V. Borisenko, A. A. Kordyuk, S. Legner +11
We report an ARPES investigation of the circular dichroism in the first Brillouin zone (BZ) of under- and overdoped Pb-Bi2212 samples. We show that the dichroism has opposite signs…
Evidence for CuO conducting band splitting in the nodal direction of Bi-2212
A. A. Kordyuk, S. V. Borisenko, A. N. Yaresko +12
Using angle-resolved photoemission spectroscopy with ultimate momentum resolution we have explicitly resolved the bilayer splitting in the nodal direction of Bi-2212. The splitting…
Temperature dependence of trapped magnetic field in MgB2 bulk superconductor
R. V. Viznichenko, A. A. Kordyuk, G. Fuchs +4
Based on DC magnetization measurements, the temperature dependencies of the trapped magnetic field have been calculated for two MgB2 samples prepared by two different techniques: t…
The determination of the electron-phonon interaction from tunneling data in the two-band superconductor MgB2
D. Daghero, R. S. Gonnelli, G. A. Ummarino +4
We calculate the tunneling density of states (DOS) of MgB2 for different tunneling directions, by directly solving the real-axis, two-band Eliashberg equations (EE). Then we show t…
Doping dependence of the many-body effects along the nodal direction in the high-Tc cuprate (Bi,Pb)_2Sr_2CaCu_2O_8
A. Koitzsch, S. V. Borisenko, A. A. Kordyuk +5
Angle-resolved photoemission spectroscopy (ARPES) is used to study the doping dependence of the lifetime and the mass renormalization of the low energy excitations in the high-Tc c…
Circular dichroism in angle-resolved photoemission spectra of under- and overdoped Pb-Bi2212
S. V. Borisenko, A. A. Kordyuk, A. Koitzsch +7
We use angle-resolved photoemission with circularly polarized excitation to demonstrate that in the 5x1 superstructure-free Pb-Bi2212 material there are no signatures of time-rever…