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Detailed analyses of the electrical resistance of holmium near the antiferromagnetic transition T
N in magnetic fields up to 71 kOe are reported. The critical exponent in the expression for the reduced resistance % MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn%...
We report on the continuous magnetization curves of a single crystal of vanadium having a resistivity ratio of 25. Our method is based on the electronic integration of the difference signal induced across two identical coils, one of which contains the specimen, as the external magnetic field is...
Results of heat capacity measurements on (PdCo
(y ⩽ 2.5 at %; 0 ⩽ x ⩽ 0.8) in the temperature range from 2 to 12 K are reported. The dependence of the γ coefficient of the electronic heat capacity on the Co content and on the x value is considered. For the binary alloy PdCo
The current-induced resistive state in a constricted type I superconductor is characterized by a train of flux tubes traversing the sample perpendicular to the direction of the applied current following its nucleation at the sample edge. The temporal structure of the nucleation process can be...
We have studied the I-V characteristics, the dc resistance at the origin R(T), and the critical current I
(T) of arrays consisting of n × n (n = 10, 20, 30, and 40) In squares separated by Au/In regions. The superconducting squares have side d
(In) from 7.5 to 15 Μm and d
The capillary wavelength instability of a charged liquid surface due to coupling between surface deformation and charge compression may be modified by altering the transport properties of the charges along the surface. For gas-like electrons, a normal magnetic field lessens the charge density...
Electric dipole fields in the mixed state of rectangular superconducting foils are investigated both theoretically and experimentally. These fields are generated by imposing an ac current to a contact pair during steady flux flow driven by a transport current and are measured using a second,...
The current density in a dirty superconductor placed in a field of microwave radiation is calculated from Eliashberg's theory for nonequilibrium superconductivity. It is shown that the microwave-induced change in the quasiparticle distribution function Δf enhances the critical current in two...
From the microscopic parameters derived from tunneling for Nb0.75Zr0.25 and Nb we compute and compare their thermodynamic properties using the imaginary frequency axis formulation of Eliashberg theory. While these two materials have similar critical temperatures, Nb0.75Zr0.25 is found to show...
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