130 citations · 1.4k across the 35 of their papers we have counts for
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Anisotropy parameters of superconducting MgB
V. G. Kogan, S. L. Bud'ko
Data on macroscopic superconducting anisotropy of MgB are reviewed. The data are described within a weak coupling two-gaps anisotropic s-wave model of superconductivity. The ca…
Current in narrow channels of anisotropic superconductors
V. G. Kogan, V. L. Pokrovsky
We argue that in channels cut out of anisotropic single crystal superconductors and narrow on the scale of London penetration depth, the persistent current must cause the transvers…
Free energy and torque for superconductors with different anisotropies of H_{c2} and lambda
V. G. Kogan
The free energy is evaluated for a uniaxial superconductor with the anisotropy of the upper critical field, gamma_H = H_{c2,ab}/H_{c2,c}, different from the anisotropy of the penet…
Anisotropy of the upper critical field in superconductors with anisotropic gaps. Anisotropy parameters of MgB2
P. Miranovic, K. Machida, V. G. Kogan
The upper critical field Hc2 is evaluated for weakly-coupled two-band superconductors. By modeling the actual bands and the gap distribution of MgB2 by two Fermi surface spheroids…
Effects of La substitution on superconducting state of CeCoIn5
C. Petrovic, S. L. Bud'ko, V. G. Kogan +1
We report effects of La substitution on superconducting state of heavy fermion superconductor CeCoIn5, as seen in transport and magnetization measurements. As opposed to the case o…