Single electron transport and pumps
Surface Acoustic Waves
Quantum Hall Effect
InAs Quantum dots: MBE growth, optics and single electron transport

Single electron transport and pumps

B. Kaestner, C. Leicht, V. Kashcheyevs, K. Pierz, U. Siegner and H. W. Schumacher:
„Single-parameter quantized charge pumping in high magnetic fields“
Appl. Phys. Lett. 94, 012106 (2009).

V. Kashcheyevs and B. Kaestner:
„Universal decay cascade model for dynamical quantum dot initialization“
arXiv:0901.4102v1 [cond-mat.mes-hall] (2009).

B. Kaestner, V. Kashcheyevs, G. Hein, K. Pierz, U. Siegner, H. W. Schumacher:
Robust single-parameter quantized charge pumping
Appl. Phys. Lett. 92, 192106 (2008).

B. Kaestner, V. Kashcheyevs, G. Hein, K. Pierz, U. Siegner, H. W. Schumacher:
“Robust single-parameter quantized charge pumping”
Appl. Phys. Lett. 92, 192106 (2008).

B. Kaestner, V. Kashcheyevs, S. Amakawa, M.D. Blumenthal, L. Li, T.J.B.M. Janssen, G. Hein, K. Pierz, T. Weimann, U. Siegner, H.W. Schumacher, Non-adiabatic single-parameter quantized charge pumping, Phys. Rev. B 77, 153301 (2008).

M. D. Blumenthal, B. Kaestner, L. Li, S. Giblin, T.J.B.M. Janssen, M. Pepper, D. Anderson, G. Jones and D.A. Ritchie, Electron pumping through quantum dots defined in parallel etched quantum wires, Microelectronics Journal 39, 365 (2008).

N. Maire, F. Hohls, B. Kaestner, K. Pierz, H. W. Schumacher, and R. J. Haug, Noise measurements of a quantized charge pump, Appl. Phys. Lett. 92, 082112 (2008).

M. D. Blumenthal, B. Kaestner, L. Li, S. Giblin, T. J. B. M. Janssen, M. Pepper, D. Anderson, G. Jones, D.A. Ritchie
Gigahertz quantized charge pumping,
Nature Physics 3 (2007), 343 - 347

Surface Acoustic Waves

F. J. Ahlers, O. F. O. Kieler, B. E. Sagol, K. Pierz, and U. Siegner
Quantized acoustoelectric single electron transport close to equilibrium
J. Appl. Phys. 100, 093702 (2006)

Ebbecke, J.; Fletcher, N. E.; Janssen, T. J. B. M.; Ahlers, F. J.; Pepper, M.; Beere, H. E.; Ritchie, D. A.
Quantized charge pumping through a quantum dot by surface acoustic waves.
Applied Physics Letters, (2004)

Fletcher, N. E.; Ebbecke, J.; Janssen, T. J. B. M.; Ahlers, F. J.; Pepper, M.; Beere, H. E.; Ritchie, D. A.:
Quantized Acoustoelectric Current Transport Through a Static Quantum Dot Using a Surface Acoustic Wave.
Physical Review B, , 68 (2003), 24, 245310-1-245310-9

J. Ebbecke, N. E. Fletcher, F. J. Ahlers, A. Hartland, and T. J. B. M. Janssen,
Study of the limitations of the quantized acoustic current technique at PTB and NPL
IEEE Trans. Instrum. Meas. 52, 594 (2003).

Quantum Hall Effect

K. Pierz, G. Hein, E. Pesel, B. Schumacher, H. W. Schumacher and U. Siegner
Asymmetric double two-dimensional electron gas structures for electrical quantum metrology
Appl. Phys. Lett. 92, 133509 (2008).

Gottwaldt, Lars; Pierz, Klaus; Ahlers, Franz-Josef; Schweitzer, Ludwig; Göbel, Ernst Otto:
Dependence of the widths of integer quantum Hall plateau on quantum lifetime.
Journal of Physics : Condensed matter, 15 (2003), 5073 - 5078

InAs Quantum dots: MBE growth, optics and single electron transport

P. Barthold, F. Hohls, N. Maire, K. Pierz, R. J. Haug
Enhanced Shot Noise in Tunneling through a Stack of Coupled Quantum Dots
Phys. Rev. Lett. 96, 246804 (2006)

D. Sarkar, H.P. van der Meulen, J.M Calleja, J. M. Becker and R. J. Haug, K. Pierz
Phonons in InAs/AlAs Single Quantum Dots observed by Optical Emission
Physical Review B 71, 081302(R) (2005)

Turchinovich, D.; Pierz, Klaus; Jepsen, P. Uhd:
InAs/GaAs quantum dots as efficient free carrier deep traps.
Physica status solidi (c), 0 (2003), 5, 1556 - 1559

Ma, Zhixun; Pierz, Klaus; Keyser, Ulrich-F.; Haug, Rolf J.:
Photoluminescence of self-assembled InAs/AlAs quantum dots as a function of density.
Physica E, 17 (2003), 1-4, 117 - 119

Gottwaldt, Lars; Pierz, Klaus; Ahlers, Franz-Josef; Göbel, Ernst Otto; Nau, S.; Torunski, T.; Stolz, W.:
Correlation of the physical properties and the interface morphology of AlGaAs/GaAs heterostructures
Journal of Applied Physics, 94 (2003), 4, 2464 - 2472

Hapke-Wurst, I.; Zeitler, U.; Keyer, U. F.; Hapke-Wurst, R. J.; Pierz, Klaus; Ma, Zhixun:
Tuning the onset voltage of resonant tunneling through InAs quantum dots by growth parameters.
Applied Physics Letters, 82 (2003), 8, 1209 - 1211

Gottwaldt, Lars; Pierz, Klaus; Ahlers, Franz-Josef; Göbel, Ernst Otto; Nau, S.; Torunski, T.; Stolz, W.:
Mesoscopic island structure at GaAs/(AlGa)As interfaces grown by MBE.
Journal of Crystal Growth, 251 (2003), 85 - 89

Pierz, Klaus; Ma, Zhixun; Keyser, U. F.; Haug, R. J.:
Kinetically limited quantum dot formation on AlAs(100) surfaces.
Journal of Crystal Growth, 249 (2003), 477 - 482

Nauen, A.; Hapke-Wurst, I.; Hohls, F.; Zeitler, U.; Haug, R. J.; Pierz, Klaus:
Shot noise in self-assembled InAs quantum dots.
Physical Review B, 66 (2002), 161303-1 - 161303-4

Zeitler, Ulrich; Hapke-Wurst, Isabella; Sarkar, D.; Haug, R. J.; Frahm, H.; Pierz, Klaus; Jansen, A. G. M.:
High magnetic fields in semiconductor nanostructures: spin effects in single InAs quantum dots.
Advances in Solid State Physics, 42 (2002), 3 - 12

Dawson, Phil; Ma, Zhixun; Pierz, Klaus; Göbel, Ernst Otto:
Microsecond carrier recombination times in InAs/AlAs quantum dots.
Applied Physics Letters, 81 (2002), 13, 2349 - 2351

Ma, Zhixun; Pierz, Klaus:
Carrier thermalization and activation within self-assembled InAs /AlAs quantum dot states.
Surface Science, 511 (2002), 57 - 64

Ma, Zhixun; Pierz, Klaus; Hinze, Peter:
Abnormal temperature behaviour of photoluminescence from self-assembled InAs/AlAs quantum dots.
Applied Physics Letters, 79 (2001), 17, 2564 - 2566

Pierz, Klaus; Miglo, A.; Hinze, Peter; Ahlers, Franz-Josef; Ade, George; Hapke-Wurst, I.; Zeitler, U.; Haug, R.J.:
Photoluminescence Study of InAs/AlAs Quantum Dots.
Physica status solidi B, basic research, 224 (2001), 1, 119 - 122

Hapke-Wurst, I.; Zeitler, U.; Frahm, H.; Jansen, A. G. M.; Haug, R. J.; Pierz, Klaus:
Singularities in magneto-tunneling through InAs quantum dots.
Physica status solidi B, basic research, 224 (2001), 3, 689 - 692

Meyer, J.M.; Hapke-Wurst, I; Zeitler, U. [speaker]; Haug, R.J.; Pierz, Klaus:
Resonant tunneling through InAs quantum dots in tilted magnetic fields: experimental determination of the g-factor anisotropy.
Physica status solidi B, basic research, 224 (2001), 3, 685 – 688

Ahlers, Franz-Josef; Zorin, Alexander:
Einzel-Elektronen-Transport in metallischen und halbleitenden Strukturen.
PTB-Mitteilungen, 110 (2000), 3, 178 - 187

Ebbecke, Jens; Bastian, Georg; Blöcker, Martin; Pierz, Klaus; Ahlers, Franz-Josef:
Enhanced quantized current driven by surface acoustic waves.
Applied Physics Letters, 77 (2000), 16, 2601 - 2603

Hapke-Wurst, I.; Zeitler, U.; Frahm, H.; Jansen, A.G.M.; Haug, R.J.; Pierz, Klaus:
Magnetic-field induced singularities in spin dependent tunneling through InAs quantum dots.
Physical Review B, 62 (2000), 19, 12621 - 12624

Hapke-Wurst, Isabella; Zeitler, Ulrich; Schumacher, H. W.; Haug, R. J.; Pierz, Klaus; Ahlers, Franz-Josef:
Size determination of InAs quantum dots using magneto-tunneling experiments.
Semiconductor, Science and Technology, 14 (1999), 11, L41 - L43