TY - JOUR
T1 - Dislocations in MgB2
AU - Jiang, N.
AU - Jiang, B.
AU - Spence, John
AU - Lee, S.
AU - Tajima, S.
PY - 2003/8
Y1 - 2003/8
N2 - The types of dislocation most commonly occurring in the superconductor MgB2 are investigated. Dislocations belonging to both the basal and the non-basal types have been observed. At 2 nm spatial resolution, dissociation of the basal dislocations into Shockley partials is not observed. The dislocation shapes are irregular, but many segments of dislocation are fairly straight. The core structure of the non-basal dislocations, with b=[0001] has also been observed by high-resolution electron microscopy. A step-like structure is suggested for this sessile dislocation.
AB - The types of dislocation most commonly occurring in the superconductor MgB2 are investigated. Dislocations belonging to both the basal and the non-basal types have been observed. At 2 nm spatial resolution, dissociation of the basal dislocations into Shockley partials is not observed. The dislocation shapes are irregular, but many segments of dislocation are fairly straight. The core structure of the non-basal dislocations, with b=[0001] has also been observed by high-resolution electron microscopy. A step-like structure is suggested for this sessile dislocation.
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U2 - 10.1080/0950083031000137848
DO - 10.1080/0950083031000137848
M3 - Article
AN - SCOPUS:0242334235
SN - 0950-0839
VL - 83
SP - 495
EP - 501
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
IS - 8
ER -