TY  - JOUR
AU  - Weides, M.
AU  - Disch, M.
AU  - Kohlstedt, H.
AU  - Buergler, D.
TI  - Observation of Josephson coupling through an interlayer of antiferromagnetically ordered chromium
JO  - Physical review / B
VL  - 80
IS  - 6
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-5452
SP  - 064508
PY  - 2009
N1  - We thank A. Ustinov for stimulating discussion and D. Sprungmann for help with sample fabrication. M. W. was supported by the DFG under Project No. WE 4359/1-1 and the AvH foundation.
AB  - The supercurrent transport in metallic Josephson tunnel junctions with an additional interlayer made up by chromium, being an itinerant antiferromagnet, was studied. Uniform Josephson coupling was observed as a function of the magnetic field. The supercurrent shows a weak dependence on the interlayer thickness for thin chromium layers and decays exponentially for thicker films. The diffusion constant and the coherence length in the antiferromagnet were estimated. The antiferromagnetic state of the barrier was indirectly verified using reference samples. Our results are compared to macroscopic and microscopic models.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000269638800064
DO  - DOI:10.1103/PhysRevB.80.064508
UR  - https://juser.fz-juelich.de/record/5452
ER  -