T.F. Heinz, M.M.T. Loy, et al.
CLEO 1984
A thermal drive apparatus is described which has been used for direct vacuum tunneling experiments where two electrodes are brought to within 10-20 Å of each other. This drive has shown excellent stability against low-frequency vibrations and appears to have less than 1-Å instability over periods of hours.
T.F. Heinz, M.M.T. Loy, et al.
CLEO 1984
J.E. Demuth, N.J. DiNardo, et al.
Physical Review B
G. Güntherodt, W.A. Thompson, et al.
Physical Review Letters
W.A. Thompson, S. Von Molnar
Journal of Applied Physics