activity
20072024
most citedInfluence of the multiband sign changing superconductivity on the vortex cores and on vortex pinning in the new stoichiometric high Tc CaKFe4As4

63 citations · 97 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.supr-con2024

Practically universal representation of the Helfand-Werthamer upper critical field for any transport scattering rate

Ruslan Prozorov, Vladimir G. Kogan

The simplified scaling of the orbital upper critical field, , for the isotropic case is discussed. To facilitate the analysis of the experimental data, we suggest a simp…

cond-mat.supr-con2023

Vortex in superconducting thin-film strips of arbitrary width

N. Nakagawa, V. G. Kogan

The currents and field distributions of a vortex in a thin superconducting strip of a width is considered. It is shown that unlike infinite films where the vortex field crosses…

cond-mat.supr-con2020★ 11 cited

Temperature dependence of London penetration depth anisotropy in superconductors with anisotropic order parameters

V. G. Kogan, R. Prozorov

We study the effects of anisotropic order parameters on the temperature dependence of London penetration depth anisotropy . After MgB, this dependence is commonly attri…

cond-mat.supr-con2019★ 12 cited

On temperature-dependent anisotropies of upper critical field and London penetration depth

V. G. Kogan, R. Prozorov, A. E. Koshelev

We show on a few examples of one-band materials with spheroidal Fermi surfaces and anisotropic order parameters that anisotropies of the upper critical field and of the…

cond-mat.supr-con2018★ 1 cited

Giant microwave absorption in fine powders of superconductors

G. Csősz, B. G. Márkus, A. Jánossy +8

Enhanced microwave absorption, larger than that in the normal state, is observed in fine grains of type-II superconductors (MgB and KC) for magnetic fields as small…

cond-mat.supr-con2017★ 9 cited

Subsurface bending and reorientation of tilted vortex lattices in the bulk due to Coulomb-like repulsion at the surface

E. Herrera, I. Guillamon, J. A. Galvis +6

We study vortex lattices (VLs) in superconducting weak-pinning platelet-like crystals of -BiPd in tilted fields with a Scanning Tunneling Microscope. We show that vortices…