TY - JOUR
T1 - Atomic structure of symmetric tilt grain boundaries in NiO
AU - Merkle, K. L.
AU - Smith, David
PY - 1987/1/1
Y1 - 1987/1/1
N2 - High-resolution electron microscopy shows the coexistence of several distinct core structures for coincident-site lattice boundaries in NiO bicrystals near =5,(310), and =13,(510), where is the reciprocal density of coincident lattice sites. Lattice expansion perpendicular to the =5 grain boundaries is considerably smaller than calculated theoretically. Structural units in boundaries near =13,(510) exhibit translations normal to the grain-boundary plane, resulting in a rumpling of the interface on an atomic scale. Our observations suggest the presence of a high concentration of Schottky pairs in the grain boundaries.
AB - High-resolution electron microscopy shows the coexistence of several distinct core structures for coincident-site lattice boundaries in NiO bicrystals near =5,(310), and =13,(510), where is the reciprocal density of coincident lattice sites. Lattice expansion perpendicular to the =5 grain boundaries is considerably smaller than calculated theoretically. Structural units in boundaries near =13,(510) exhibit translations normal to the grain-boundary plane, resulting in a rumpling of the interface on an atomic scale. Our observations suggest the presence of a high concentration of Schottky pairs in the grain boundaries.
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U2 - 10.1103/PhysRevLett.59.2887
DO - 10.1103/PhysRevLett.59.2887
M3 - Article
AN - SCOPUS:35949010698
SN - 0031-9007
VL - 59
SP - 2887
EP - 2890
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
ER -