Open AccessElectron holography investigation of the barrier of magnetic tunnelling junctions
Author(s) -
Yong Wang,
Ze Zhang,
Zeng Zhong-Ming,
Xiufeng Han
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.1148
Subject(s) - electron holography , quantum tunnelling , holography , condensed matter physics , electron , rectangular potential barrier , phase (matter) , materials science , physics , optics , quantum mechanics
Electron holography was successfully used to investigate the distribution of the potential of the barrier in magnetic tunnelling junctions experimentally and theoretically. We got a clear profile of the potential which shows a “well” in reconstructed phase profile. We also pointed out some artefacts in electron holographic study of magnetic tunnelling junctions and suggested some possible methods to resolve them.