Abstract
We report the first experimental results obtained by Low Temperature Scanning Electron Microscopy (LTSEM) on dynamic states of Josephson tunnel junctions. The spatially resolved measurements dealing with self-resonant modes (Fiskesteps) revealed information about the distribution of the rf-magnetic field amplitudes inside the Josephson junction. We imaged one- and two-dimensional cavity-modes inside a square junction. By coupling a Josephson element phase-coherently to a microwave field we imaged the distribution of the maximum current density of the generated constant-voltage steps (Shapiro-steps). For junction designs used as modern voltage standards we measured homogeneously distributed step-current densities up to the fourth step. By irradiating superconducting tunnel junctions with microwaves photon-assisted tunneling of quasiparticles takes place. Using LTSEM we imaged the standing microwave pattern inside the junction. As a result, the wavelength of the microwave inside a single tunnel junction and the wavelength inside a superconducting stripline is displayed directly. The spatial resolution achieved by LTSEM is about 1–2 μm.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
A. Barone, G. Paternò, Physics and Applications of the Josephson Effect, John Wiley & Sons, New York (1982)
K.K. Likharev, Dynamics of Josephson Junctions and Circuits, Gordon and Breach Science Publishers, New York (1986)
J. Niemeyer, L. Grimm, Metrologia 25, 135 (1988)
A.H. Dayem, R.J. Martin, Phys. Rev. Lett. 8, 246 (1962)
P.K. Tien, J.P. Gordon, Phys. Rev. 129, 647 (1963)
J. Bosch, R. Gross, R.P. Huebenerin: Josephson Effect — Achievements and Trends, A. Barone, ed., World Scientific Publishing, Singapore, 1986, p. 174
R.P. Huebener, Rep. Prog. Phys. 47, 175 (1984)
R.P. Huebener in: Advances in Electronics and Electron Physics, Vol. 70, P.W. Hawkes, ed., Academic Press, New York (1988), p. 1
J. Bosch, R. Gross, M. Koyanagi, R.P. Huebener, J. Low Temp. Phys. 68, 245 (1987)
J. Mannhart, J. Bosch, R. Gross, R.P. Huebener, J. Low Temp. Phys. 70, 459 (1988)
H. Seifert, R.P. Huebener, P.W. Epperlein, Phys. Lett. 95A, 326 (1983)
R. Gross, D.B. Schmid, R.P. Huebener, J. Low Temp. Phys. 62, 245 (1986)
H. Seifert, Cryogenics 22, 657 (1982)
T. Doderer, H.-G. Wener, R. Moeck, C. Becker, R.P. Huebener, Cryogenics 30, 65 (1990)
J. Niemeyer in: Superconducting Quantum Electronics, V. Kose, ed., Springer-Verlag, Berlin (1989) p. 228
R. Gross, M. Koyanagi, J. Low Temp. Phys. 60, 277 (1985)
M.A.H. Nerenberg, P.A. Forsyth, Jr., J.A. Blackburn, J. Appl. Phys. 47, 4148 (1976)
H. Svensmark in: SQUID ′85, Superconducting Quantum Interference Devices and their Applications, H.D. Hahlbohm, H. Liibbig, eds., Walter de Gruyter, Berlin (1985) p. 471
T.C. Wang, R.I. Gayley, Phys. Rev. B 18, 293 (1978)
R.F. Broom, P. Wolf, Phys. Rev. B 16, 3100 (1977)
B. Mayer, T. Doderer, R.P. Huebener, to be published
P.W. Epperlein, H. Seifert, R.P. Huebener, Phys. Lett. 92A, 146 (1982)
S. Meepagala, J.T. Chen, J.-J. Chang, Phys. Rev. B 36, 809 (1987)
R.L. Kautz, CA. Hamilton, F.L. Lloyd, IEEE Trans. Magn., MAG-23, 883 (1987)
J.-J. Chang, C.H. Ho, DJ. Scalapino, Phys. Rev. B 31, 5826 (1985)
J. Bosch, R. Gross, M. Koyanagi, R.P. Huebener, Phys. Rev. Lett. 54, 1448 (1985)
N.F. Pedersen, A. Davidson, Phys. Rev. B 41, 178 (1990)
G. Costabile, R. Monaco, S. Pagano, G. Rotoli, Phys. Rev. B 42, 2651 (1990)
M. Cirillo, F.L. Lloyd, J. Appl. Phys. 61, 2581 (1987)
G. Costabile, R. Monaco, S. Pagano, J. Appl. Phys. 63, 5406 (1988)
J.-J. Chang, Phys. Rev. B 34, 6137 (1986)
CA. Hamilton, S. Shapiro, Phys. Rev. B 2, 4494 (1970)
J.C Swihart, J. Appl. Phys. 32, 461 (1961)
J. Bosch, R. Gross, R.P. Huebener, J. Niemeyer, Appl. Phys. Lett. 47, 1004 (1985)
J. Niemeyer, J.H. Hinken, R.L. Kautz, Appl. Phys. Lett. 45, 478 (1984)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1991 Springer Science+Business Media New York
About this chapter
Cite this chapter
Doderer, T. et al. (1991). Imaging of Spatial Structures Of Fiske- and Shapiro-Step States and Photon-Assisted Tunneling States in Josephson Junctions. In: Costabile, G., Pagano, S., Pedersen, N.F., Russo, M. (eds) Nonlinear Superconductive Electronics and Josephson Devices. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3852-3_26
Download citation
DOI: https://doi.org/10.1007/978-1-4615-3852-3_26
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-6719-2
Online ISBN: 978-1-4615-3852-3
eBook Packages: Springer Book Archive