TY - JOUR
T1 - Determination of mean inner potential of germanium using off-axis electron holography
AU - Li, Jing
AU - McCartney, Martha
AU - Dunin-Borkowski, R. E.
AU - Smith, David
PY - 1999
Y1 - 1999
N2 - Off-axis electron holography has been used to determine the mean inner potential of germanium using cleaved 90° wedge samples, where the wedge thickness profiles were checked by weak-beam dark-field extinction fringes. Dynamical contributions to the phase of the image were minimized by tilting to weakly diffracting conditions, as confirmed by reference to convergent-beam electron diffraction patterns. Small residual corrections were determined using multislice calculations. From a total of 18 separate measurements, it is concluded that the value of the mean inner potential is 14.3 (2) V, which agrees with recent theoretical calculations to within experimental error.
AB - Off-axis electron holography has been used to determine the mean inner potential of germanium using cleaved 90° wedge samples, where the wedge thickness profiles were checked by weak-beam dark-field extinction fringes. Dynamical contributions to the phase of the image were minimized by tilting to weakly diffracting conditions, as confirmed by reference to convergent-beam electron diffraction patterns. Small residual corrections were determined using multislice calculations. From a total of 18 separate measurements, it is concluded that the value of the mean inner potential is 14.3 (2) V, which agrees with recent theoretical calculations to within experimental error.
UR - http://www.scopus.com/inward/record.url?scp=0012246156&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0012246156&partnerID=8YFLogxK
U2 - 10.1107/S010876739801719X
DO - 10.1107/S010876739801719X
M3 - Article
AN - SCOPUS:0012246156
SN - 0108-7673
VL - 55
SP - 652
EP - 658
JO - Acta Crystallographica Section A: Foundations of Crystallography
JF - Acta Crystallographica Section A: Foundations of Crystallography
IS - 4
ER -