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Fabrication and characterisation of La 0.67 Sr 0.33 MnO 3 submicron grain boundary junctions
Author(s) -
Gunnarsson R.,
Charlebois S.,
Liljenfors T.,
Ivanov Z.,
Olsson E.
Publication year - 2004
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200310065
Subject(s) - percolation critical exponents , quantum tunnelling , condensed matter physics , percolation threshold , grain boundary , critical exponent , percolation (cognitive psychology) , materials science , directed percolation , renormalization group , microstructure , universality (dynamical systems) , piezoresistive effect , statistical physics , physics , electrical resistivity and conductivity , quantum mechanics , phase transition , composite material , neuroscience , biology
We have successfully fabricated LSMO grain boundary bicrystal junctions with widths down to 200 nm. The grain boundaries are symmetric with misorientation angles of 24° or 36.8°, and the microbridges are positioned across those with a precision better than ±0.5 µm. Grain boundary magnetoresistance is observed in the wider junctions but not in the most narrow junction.