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pro vyhledávání: '"Kirtley J"'
The magnetic field of vortices in anisotropic superconducting films is considered in the framework of anisotropic London approach. It is found that at distances large relative to the core size, the magnetic field normal to the film surface may change
Externí odkaz:
http://arxiv.org/abs/2109.01966
Autor:
Kogan, V. G., Kirtley, J. R.
Publikováno v:
Phys. Rev. B 96, 174516 (2017)
It is of interest to determine the exit angle of a vortex from a superconducting surface, since this affects the intervortex interactions and their consequences. Two ways to determine this angle are to image the vortex magnetic fields above the surfa
Externí odkaz:
http://arxiv.org/abs/1706.09915
A magnetic domain boundary on the surface of a three-dimensional topological insulator is predicted to host a chiral edge state, but direct demonstration is challenging. Here, we used a scanning superconducting quantum interference device to show tha
Externí odkaz:
http://arxiv.org/abs/1508.03675
Autor:
Kirtley, J. R., Kalisky, B., Bert, J. A., Bell, C., Hikita, Y., Hwang, H. Y., Ngai, J. H., Segal, Y., Walker, F. J., Ahn, C. H., Moler, K. A.
Scanning SQUID susceptometry images the local magnetization and susceptibility of a sample. By accurately modeling the SQUID signal we can determine the physical properties such as the penetration depth and permeability of superconducting samples. We
Externí odkaz:
http://arxiv.org/abs/1204.3355
Autor:
Kogan, V. G., Kirtley, J. R.
We discuss the Meissner response to a known field source of superconductors having inhomogeneities in their penetration depth. We simplify the general problem by assuming that the perturbations of the fields by the penetration depth inhomogeneities a
Externí odkaz:
http://arxiv.org/abs/1103.4553
Autor:
Tsuei, C. C., Kirtley, J. R.
In this article, we wish to give a historical and personal account of the advent of our tricrystal phase-sensitive symmetry experiments using scanning SQUID microscope for establishing d-wave pairing symmetry in the cuprate superconductors. On the oc
Externí odkaz:
http://arxiv.org/abs/1101.1668
We use scanning SQUID microscopy to investigate the behavior of vortices in the presence of twin boundaries in the pnictide superconductor Ba(Fe1-xCox)2As2. We show that the vortices avoid pinning on twin boundaries. Individual vortices move in a pre
Externí odkaz:
http://arxiv.org/abs/1012.4271
Autor:
Kirtley, J. R.
In this review I discuss the application of scanning magnetic imaging to fundamental studies of superconductors, concentrating on three scanning magnetic microscopies - scanning SQUID microscopy (SSM), scanning Hall bar microscopy (SHM), and magnetic
Externí odkaz:
http://arxiv.org/abs/1008.3179
We calculate the change in susceptibility resulting from a thin sheet with reduced penetration depth embedded perpendicular to the surface of an isotropic superconductor, in a geometry applicable to scanning Superconducting QUantum Interference Devic
Externí odkaz:
http://arxiv.org/abs/0912.1032
Autor:
Breitschaft, M., Tinkl, V., Pavlenko, N., Thiel, S., Richter, C., Kirtley, J. R., Liao, Y. C., Hammerl, G., Eyert, V., Kopp, T., Mannhart, J.
Publikováno v:
Phys. Rev. B 81, 153414 (2010)
Using tunneling spectroscopy we have measured the spectral density of states of the mobile, two-dimensional electron system generated at the LaAlO3-SrTiO3 interface. As shown by the density of states the interface electron system differs qualitativel
Externí odkaz:
http://arxiv.org/abs/0907.1176