Y0.75Nd0.25Ba2Cu3O7−d superconductor has the peak effect with pronounced fishtail feature on magnetization hysteresis. The magnetic field of the peak effect maximum is in ~4 times higher than one of NdBa2Cu3O7−d. The magnetization hysteresis...

c ( B ) w i t h t h e G a u s s p e a k j c ( B ) w i t h t h e l o g i s t i c f u n c t i o n FIG. 1. Comparison of the Gauss function and the logistic function as a source of the peak in jpeakc (B) dependencies. The logistic function is a...
separation into the insulating and superconducting regions is observed in Ba0.6K0.4BiO3 superconductor in the range of fields and temperatures overlapping with the peak effect14. A network consisting from non-superconducting and superconducting clusters...

The new method to determine association constants using capillary electrophoresis technique with indirect spectrophotometric detection was investigated. An association constant was calculated from decrease of corrected peak area. The equations...

Y0.75Nd0.25Ba2Cu3O7−d superconductor has the peak effect with pronounced fishtail feature on magnetization hysteresis. The magnetic field of the peak effect maximum is in ~4 times higher than one of NdBa2Cu3O7−d. The magnetization hysteresis is tilted...

Polycrystalline Y1−xNdxBa2Cu3O7−δ (x=0.02, 0.11, and 0.25) superconductors are synthesized. Nd atoms are uniformly distributed over grains. The magnetization loops of the samples have a pronounced second peak in a wide temperature range...

The spin resonance peak in the iron-based superconductors is observed in inelastic neutron scattering experiments and agrees well with predicted results for the extended s-wave (s±) gap symmetry. On the basis of four-band and three-orbital tight...

shift affinity capillary electrophoresis for studying strong complexation. Electrophoretic peaks for this case are often triangular. It was shown that the use of electrophoretic mobility obtained from the peak apex time to calculate binding constants...

in the normal state magnetic susceptibility at or near q = Q. For the uniform s-wave gap, sign∆k = sign∆k+Q and there is no resonance peak. For the s± order parameter as well as for an extended non-uniform s-wave symmetry, Q connects Fermi sheets...
with the different signs of gaps. This fulfills the resonance condition for the interband susceptibility, and the spin resonance peak is formed at a frequency !s below Ωx = min (|∆k|+ |∆k+q|). The existence of the spin resonance in FeBS was predicted...

inelastic neutron-scattering data confirms that what is seen is the true spin resonance and not a peak inherent to the s++ state....

We consider the spin response within the five-orbital model for iron-based superconductors and study two cases: equal and unequal gaps in different bands. In the first case, the spin resonance peak in the superconducting state appears below...