Grain boundaries in high-Tc superconductors

By H. Hilgenkamp, J. Mannhart. 2002

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Iron-based superconductors at high magnetic fields (2011, background): “between misoriented crystallites impede current flow because the critical current density through a grain boundary Jgb(θ) = J0 exp(−θ/θ0) drops exponentially as the misorientation angle θ increases [109].”
Fundamental studies of superconductors using scanning magnetic imaging (2010, background): “Grain boundaries in the cuprate high-Tc superconductors are widely used for devices and fundamental studies, and govern the transport properties of superconductors with technological applications [178].”
Progress and perspectives on electron-doped cuprates (2009, background): “Another avenue for the estimation of the temperature dependence of the penetration depth relies on the properties of grain boundary junctions (GBJ) made on SrTiO3 bicrystal substrates(Hilgenkamp and Mannhart, 2002).”
The current-phase relation in Josephson junctions (2004, background): “…the physics of the Joseph- 1See, for example, Kupriyanov and Likharev, 1990; Braginski, 1992; Sigrist and Rice, 1995; van Harlingen, 1995; Delin and Kleinsasser, 1996; Kashiwaya and Tanaka, 2000; Tsuei and Kirtley, 2000; Löfwander et al., 2001; Makhlin et al., 2001; Hilgenkamp and Mannhart, 2002.”