Publications in 1994

94-01
A. Esslinger, R. W. Winkler, C. Rocke, A. Wixforth, J. P. Kotthaus, W. Nickel, W. Schlapp, and R. Lösch
"Ultrasonic Approach to the Integer and Fractional Quantum Hall Effect"
Surf. Sci. 305, 83-86 (1994).

94-02
A. Wixforth
"Electronic Excitations in Parabolically Confined Electron Systems"
Surf. Sci. 305, 194-201 (1994).

94-03
A. Wixforth, M. Kaloudis, C. Rocke, K. Ensslin, M. Sundaram, J. H. English, and A. C. Gossard
"Dynamic Response of Parabolically Confined Electron Systems"
Semicond. Sci. Technol. 9, 215-240 (1994).

94-04
K. Ensslin, H. Baum, P. F. Hopkins, and A. C. Gossard
"Wave Function Modification via Controlled Potential Pertubation"
Surf. Sci. 305, 317-321 (1994).

94-05
G. Hertel, H. Drexler, W. Hansen, A. Schmeller, J. P. Kotthaus, M. Holland, and
S. P. Beaumont
"Widely Tunable Quantum Wire Arrays in MISFET-Type Heterojunctions with a Stacked Gate"
Solid State Electronics 37, 1289-1292 (1994).

94-06
C. Lettau, M. Wendel, A. Schmeller, W. Hansen, J. P. Kotthaus, G. Böhm, G. Weimann, and M. Holland
"Comparison of Far-Infrared- and DC-Conductivity of Electron-Systems Laterally Patterned by Low-Energy Ion Beam Exposure"
Solid State Electronics 37, 1207-1210 (1994).

94-07
T. Utzmeier, T. Schlösser, K. Ensslin, J. P. Kotthaus, C. R. Bolognesi, C. Nguyen, and H. Kroemer
"Lateral Potential Modulation in InAs/AlSb Quantum Wells by Wet Etching"
Solid State Electronics 37, 575-578 (1994).

94-08
H. Drexler, W. Hansen, S. Manus, J. P. Kotthaus, M. Holland, and S. P. Beaumont
"One-Dimensional Electron Channels in the Quantum Limit"
Phys. Rev B 49, 14074-14077 (1994).

94-09
A. Schmeller, W. Hansen, J. P. Kotthaus, G. Tränkle, and G. Weimann
"Franz-Keldysh Effect in a Two-Dimensional System"
Appl. Phys. Lett. 64, 330-332 (1994).

94-10
R. Schuster, K. Ensslin, D. Wharam, S. Kühn, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Phase Coherent Electrons in a Finite Antidot Lattice"
Phys. Rev. B 49, 8510-8513 (1994).

94-11
M. Tolan, W. Press, F. Brinkop, and J. P. Kotthaus
"X-Ray Diffraction from Laterally Structured Surfaces: Crystal Truncation Rods"
J. Applied Physics 75, 7761-7769 (1994).

94-12
H. Drexler, W. Hansen, J. P. Kotthaus, M. Holland, and S. P. Beaumont
"Far-Infrared Photocurrent of Quantum Wires"
Appl. Phys. Lett. 64, 2270-2272 (1994).

94-13
T. Heinzel, D. A. Wharam, F. M. Aguiar, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Current-Voltage-Characteristics of Quantum Point Contacts in the High Bias Regime"
Semicond. Sci. Technol. 9, 1220-1225 (1994).

94-14
W. Gödel, S. Manus, D. A. Wharam, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Ballistic Point Contacts as Microwave Mixers"
Electronics Letters 30, 977-979 (1994).

94-15
C. Lettau, M. Wendel, A. Schmeller, W. Hansen, J. P. Kotthaus, W. Klein, G. Böhm, G. Tränkle, and G. Weimann
"DC- and High Frequency-Transport in Quasi-1D Quantum Wires with Rough Boundaries"
Phys. Rev. B 50, 2432-2442 (1994).

94-16
T. Heinzel, S. Manus, D. A. Wharam, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Modulation of Coulomb Blockade Oscillations by Coherent Resonant Tunnelling"
Europhysics Letters 26, 689-694 (1994).

94-17
W. Hansen, A. Schmeller, H. Drexler, J. P. Kotthaus, M. Holland, G. Tränkle, G. Böhm, and G. Weimann
"Spectroscopy on Field-Effect Induced Superlattices"
Semicond. Sci. Technol. 9, 1946-1952 (1994).

94-18
H. Drexler, W. Hansen, S. Manus, J. P. Kotthaus, M. Holland, and S. P. Beaumont
"Quantum Wires with a Widely Tunable Confining Potential"
Physica Scripta T55, 65-71 (1994).

94-19
C. Gauer, J. Scriba, A. Wixforth, J. P. Kotthaus, C. R. Bolognesi, C. Nguyen, B. Brar, and H. Kroemer
"Energy-Dependent Cyclotron Mass in InAs/AlSb Quantum Wells"
Semicond. Sci. Technol. 9, 1580-1583 (1994).

94-20
R. Schuster and K. Ensslin
"Antidot-Superlattices: Classical Chaos and Quantum Transport"
in "Festkörperprobleme, Advances in Solid State Physics", Ed. R. Helbig (Vieweg, Braunschweig 1994) Vol. 34, pp.195-218.

94-21
H. Drexler, D. Leonard, W. Hansen, J. P. Kotthaus, and P. M. Petroff
"Spectroscopy of Quantum Levels in Charge-Tunable InGaAS Quantum Dots"
Phys. Rev. Lett. 73, 2252-2255 (1994).

94-22
D. A. Wharam, T. Heinzel, S. Manus, J. P. Kotthaus, G. Böhm, W. Klein, G.Tränkle, and G. Weimann
"High Magnetic Field Investigations of Quantum Dots"
Superlattices and Microstructures 15, 37-40 (1994).

94-23
M. Wendel, S. Kühn, H. Lorenz, J. P. Kotthaus, and M. Holland
"Nanolithography with an Atomic Force Microscope for Integrated Fabrication of Quantum Electronic Devices"
Appl. Phys. Lett. 65, 1775-1777 (1994).

94-24
R. Schuster, G. Ernst, K. Ensslin, M. Entin, M. Holland, G. Böhm, and W. Klein
"Experimental Characterization of Electron Trajectories in Antidot Lattices"
Phys. Rev. B 50, 8090-8093 (1994).

94-25
D. Többen, M. Holzmann, S. Kühn, H. Lorenz, G. Abstreiter, J. P. Kotthaus, and F. Schäffler
"Electron Transport through Antidot Superlattices in Si/Si0.7Ge0.3 Heterostructures"
Phys. Rev. B 50, 8853-8856 (1994).

94-26
C. Rocke, S. Manus, A. Wixforth, M. Sundaram, J. H. English, and A. C. Gossard
"Voltage Tunable Acoustoelectric Interaction in GaAs/AsGaAs Heterojunctions"
Appl. Phys. Lett. 65, 2422-2424 (1994).

94-27
R. Jurk, K. Ensslin, P. F. Hopkins, and A. C. Gossard
"Intersubband Scattering as a Tool to Study the Symmetry Properties of a Parabolic Quantum Well"
Superlattices and Microstructures 15, 325-327 (1994).

94-28
M. Tolan, D. Bahr, J. Süßenbach, W. Press, F. Brinkop, and J. P. Kotthaus
"Coherence Length Determination of X-Rays with Laterally Structured Surfaces"
Physica B 198, 55-57 (1994).

94-29
A. A. Shashkin, V. T. Dolgopolov, G. V. Kravchenko, M. Wendel, R. Schuster, J. P. Kotthaus, R. J. Haug, K. von Klitzing, K. Ploog, H. Nickel, and W. Schlapp
"Percolation Metal-Insulator Transitions in the Two-Dimensional Electron System of AlGaAs/GaAs Heterostructures"
Phys. Rev. Lett. 73, 3141-3144 (1994).

94-30
T. Salditt, H. Rhan, T. H. Metzger, J. Peisl, R. Schuster, and J. P. Kotthaus
"X-Ray Coherence and Ultra Small Angle Resolution at Grazing Incidence and Exit Angles"
Z. Phys. B 96, 227-230 (1994).

94-31
T. Heinzel, D. A. Wharam, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Periodic Modulation of Coulomb-Blockade Oscillations in High Magnetic Fields"
Phys. Rev. B 50, 15113-15119 (1994).

94-32
T. Heinzel, D. A. Wharam, S. Manus, J. P. Kotthaus, G. Böhm, W. Klein, G. Tränkle, and G. Weimann
"Periodic Modulations of Coulomb Oscillations in a Quantum Dot at High Magnetic Fields"
in "Coulomb and Interference Effects in Small Electronic Structures", Eds. D. C. Glattli, M. Sanquer, and J. Tran Thann Van
(Editions Frontieres, Gif-sur Yvette 1994) pp. 339-247.