130 citations · 195 across the 6 of their papers we have counts for
6 papers
Electronic Transport through YBCO Grain Boundary Interfaces between 4.2 K and 300 K
C. W. Schneider, S. Hembacher, G. Hammerl +5
The current-induced dissipation in YBCO grain boundary tunnel junctions has been measured between 4.2 K and 300 K. It is found that the resistance of 45 degree (100)/(110) junction…
A possible solution of the grain boundary problem for applications of high-Tc superconductors
G. Hammerl, A. Herrnberger, A. Schmehl +4
It is shown that the critical current density of high-Tc wires can be greatly enhanced by using a threefold approach, which consists of grain alignment, doping, and optimization of…
Large grain boundary area superconductors
G. Hammerl, H. Bielefeldt, S. Leitenmeier +4
For many applications of polycrystalline high-Tc superconductors the small critical currents of the grain boundaries pose a severe problem. To solve this problem we derive novel de…
Coated conductors containing grains with big aspect ratios
S. Leitenmeier, H. Bielefeldt, G. Hammerl +3
It is shown that the critical currents of high-Tc superconducting tapes fabricated by the coated conductor technologies are enhanced considerably if grain arrangements with large e…
Evidence of Doping-Dependent Pairing Symmetry in Cuprate Superconductors
N. -C. Yeh, C. -T. Chen, G. Hammerl +8
Scanning tunneling spectroscopy (STS) studies reveal long-range spatial homogeneity and predominantly -pairing spectral characteristics in under- and optimally doped $…
Spatial homogeneity and doping dependence of quasiparticle tunneling spectra in cuprate superconductors
N. -C. Yeh, C. -T. Chen, G. Hammerl +6
Scanning tunneling spectroscopy (STS) studies reveal long-range (~100 nm) spatial homogeneity in optimally and underdoped superconducting YBa_2Cu_3O_{7-δ} (YBCO) single crystals an…