activity
19982010
most citedFermi surface topology and the upper critical field in two-band superconductors - application to MgB2

131 citations · 240 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.supr-con2010★ 19 cited

Strong surface contribution to the Nonlinear Meissner Effect

A. Zare, T. Dahm, N. Schopohl

We demonstrate that in a d-wave superconductor the bulk nonlinear Meissner effect is dominated by a surface effect due to Andreev bound states at low temperatures. The contribution…

cond-mat.supr-con2009

Geometric pi Josephson junction: Current-phase relations and critical current

A. Gumann, C. Iniotakis, N. Schopohl

Josephson junctions with an intrinsic phase shift of pi, so-called pi Josephson junctions, can be realized by a weak link of a d-wave superconductor with an appropriate boundary ge…

cond-mat.supr-con2008★ 13 cited

Phase diagram of geometric d-wave superconductor Josephson junctions

A. Gumann, N. Schopohl

We show that a constriction-type Josephson junction realized by an epitactic thin film of a d-wave superconductor with an appropriate boundary geometry exhibits intrinsic phase dif…

cond-mat.supr-con2008★ 14 cited

Modification of Born impurity scattering near the surface of d-wave superconductors and influence of external magnetic field

A. Zare, A. Markowsky, T. Dahm +1

We study the influence of Born impurity scattering on the zero-energy Andreev bound states near the surface of a d-wave superconductor with and without an externally applied magnet…

cond-mat.supr-con2007★ 12 cited

Andreev bound states at a cuprate grain boundary junction: A lower bound for the upper critical field

M. Wagenknecht, D. Koelle, R. Kleiner +6

We investigate in-plane quasiparticle tunneling across thin film grain boundary junctions (GBJs) of the electron-doped cuprate LaCeCuO in magnetic fields up to $B…

cond-mat.supr-con2004★ 24 cited

Shadow on the wall cast by an Abrikosov vortex

S. Graser, C. Iniotakis, T. Dahm +1

At the surface of a d-wave superconductor, a zero-energy peak in the quasiparticle spectrum can be observed. This peak appears due to Andreev bound states and is maximal if the nod…