Nitride semiconductors free of electrostatic fields for efficient white light-emitting diodes P Waltereit, O Brandt, A Trampert, HT Grahn, J Menniger, M Ramsteiner, ...
nature 406 (6798), 865-868, 2000
2154 2000 Surface generation and detection of phonons by picosecond light pulses C Thomsen, HT Grahn, HJ Maris, J Tauc
Physical Review B 34 (6), 4129, 1986
2033 1986 Optical communication of spin information between light emitting diodes R Farshchi, M Ramsteiner, J Herfort, A Tahraoui, HT Grahn
Applied Physics Letters 98 (16), 2011
365 2011 Picosecond ultrasonics HT Grahn, HJ Maris, J Tauc
IEEE Journal of Quantum Electronics 25 (12), 2562-2569, 1989
341 1989 Electronic band structure of wurtzite GaN under biaxial strain in the M plane investigated with photoreflectance spectroscopy S Ghosh, P Waltereit, O Brandt, HT Grahn, KH Ploog
Physical Review B 65 (7), 075202, 2002
306 2002 Non-linear dynamics of semiconductor superlattices LL Bonilla, HT Grahn
Reports on Progress in Physics 68 (3), 577, 2005
275 2005 Introduction to semiconductor physics HT Grahn
World Scientific Publishing Company, 1999
270 1999 Suitability of Au-and self-assisted GaAs nanowires for optoelectronic applications S Breuer, C Pfuller, T Flissikowski, O Brandt, HT Grahn, L Geelhaar, ...
Nano letters 11 (3), 1276-1279, 2011
244 2011 Electrical spin injection from ferromagnetic MnAs metal layers into GaAs M Ramsteiner, HY Hao, A Kawaharazuka, HJ Zhu, M Kästner, R Hey, ...
Physical Review B 66 (8), 081304, 2002
231 2002 Electric-field domains in semiconductor superlattices: A novel system for tunneling between 2D systems HT Grahn, RJ Haug, W Müller, K Ploog
Physical review letters 67 (12), 1618, 1991
210 1991 Picosecond interferometric technique for study of phonons in the brillouin frequency range C Thomsen, HT Grahn, HJ Maris, J Tauc
Optics communications 60 (1-2), 55-58, 1986
203 1986 Semiconductor superlattices: growth and electronic properties HT Grahn
World Scientific, 1995
200 1995 Electrical transport in narrow-miniband semiconductor superlattices HT Grahn, K Von Klitzing, K Ploog, GH Döhler
Physical Review B 43 (14), 12094, 1991
192 1991 Electrically tunable GHz oscillations in doped GaAs-AlAs superlattices J Kastrup, R Hey, KH Ploog, HT Grahn, LL Bonilla, M Kindelan, ...
Physical Review B 55 (4), 2476, 1997
185 1997 Synchronization and chaos induced by resonant tunneling in GaAs/AlAs superlattices Y Zhang, J Kastrup, R Klann, KH Ploog, HT Grahn
Physical review letters 77 (14), 3001, 1996
170 1996 Luminescence associated with stacking faults in GaN J Lähnemann, U Jahn, O Brandt, T Flissikowski, P Dogan, HT Grahn
Journal of Physics D: Applied Physics 47 (42), 423001, 2014
149 2014 Self-oscillations of domains in doped GaAs-AlAs superlattices J Kastrup, R Klann, HT Grahn, K Ploog, LL Bonilla, J Galán, M Kindelan, ...
Physical Review B 52 (19), 13761, 1995
144 1995 Multistability of the current‐voltage characteristics in doped GaAs‐AlAs superlattices J Kastrup, HT Grahn, K Ploog, F Prengel, A Wacker, E Schöll
Applied physics letters 65 (14), 1808-1810, 1994
141 1994 Optical studies of electric field domains in GaAs- As superlattices HT Grahn, H Schneider, K Von Klitzing
Physical Review B 41 (5), 2890, 1990
140 1990 Time-resolved study of vibrations of a -Ge:H/a -Si:H multilayers HT Grahn, HJ Maris, J Tauc, B Abeles
Physical Review B 38 (9), 6066, 1988
137 1988