Dr. Manfred Ramsteiner

Exciton impact-ionization dynamics modulated by surface acoustic waves in GaN

@article{ author = { J. Pedros and Y. Takagaki and T. Ive and M. Ramsteiner and O. Brandt and U. Jahn and K. H. Ploog and F. Calle }, title = { Exciton impact-ionization dynamics modulated by surface acoustic waves in GaN }, journal = { Physical Review B: Solid State }, volume = { 75 }, year = { 2007 }, pages = { 115305 } }

TY - JOUR AU - J. Pedros AU - Y. Takagaki AU - T. Ive AU - M. Ramsteiner AU - O. Brandt AU - U. Jahn AU - K. H. Ploog AU - F. Calle TI - Exciton impact-ionization dynamics modulated by surface acoustic waves in GaN JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 75 SP - 115305 PY - 2007/01/01

Hot-electron photoluminescence of para- and ferromagnetic (Ga,Mn)As layers

@article{ author = { V. F. Sapega and M. Ramsteiner and O. Brandt and L. Daweritz and K. H. Ploog }, title = { Hot-electron photoluminescence of para- and ferromagnetic (Ga,Mn)As layers }, journal = { AIP Conference Proceedings }, volume = { 893 }, year = { 2007 }, pages = { 1209 } }

TY - JOUR AU - V. F. Sapega AU - M. Ramsteiner AU - O. Brandt AU - L. Daweritz AU - K. H. Ploog TI - Hot-electron photoluminescence of para- and ferromagnetic (Ga,Mn)As layers JF - AIP Conference Proceedings JA - AIP Conf. Proc. J1 - VL - 893 SP - 1209 PY - 2007/01/01

Graphene field-effect devices

@article{ author = { T. J. Echtermeyer and M. C. Lemme and J. Bolten and M. Baus and M. Ramsteiner and H. Kurz }, title = { Graphene field-effect devices }, journal = { The European Physical Journal Special Topics }, volume = { 148 }, year = { 2007 }, pages = { 19 } }

TY - JOUR AU - T. J. Echtermeyer AU - M. C. Lemme AU - J. Bolten AU - M. Baus AU - M. Ramsteiner AU - H. Kurz TI - Graphene field-effect devices JF - The European Physical Journal Special Topics JA - Eur. Phys. J. Special Topics J1 - VL - 148 SP - 19 PY - 2007/01/01

Hot-electron photoluminescence study of the (Ga,Mn)As diluted magnetic semiconductor

@article{ author = { V. F. Sapega and M. Ramsteiner and O. Brandt and L. Däweritz and K. H. Ploog }, title = { Hot-electron photoluminescence study of the (Ga,Mn)As diluted magnetic semiconductor }, journal = { Physical Review B: Solid State }, volume = { 73 }, year = { 2006 }, pages = { 235208 } }

TY - JOUR AU - V. F. Sapega AU - M. Ramsteiner AU - O. Brandt AU - L. Däweritz AU - K. H. Ploog TI - Hot-electron photoluminescence study of the (Ga,Mn)As diluted magnetic semiconductor JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 73 SP - 235208 PY - 2006/01/01

Electrical spin injection from room-temperature ferromagnetic (Ga,Mn)N in nitride-based spin-polarized light-emitting diodes

@article{ author = { M.-H. Ham and S. Yoon and Y. Park and L. Bian and M. Ramsteiner and J.-M. Myoung }, title = { Electrical spin injection from room-temperature ferromagnetic (Ga,Mn)N in nitride-based spin-polarized light-emitting diodes }, journal = { Journal of Physics: Condensed Matter }, volume = { 18 }, year = { 2006 }, pages = { 7703 } }

TY - JOUR AU - M.-H. Ham AU - S. Yoon AU - Y. Park AU - L. Bian AU - M. Ramsteiner AU - J.-M. Myoung TI - Electrical spin injection from room-temperature ferromagnetic (Ga,Mn)N in nitride-based spin-polarized light-emitting diodes JF - Journal of Physics: Condensed Matter JA - J. Phys.: Condens. Matter J1 - JPCM VL - 18 SP - 7703 PY - 2006/01/01

Epitaxial growth of Fe₃Si/GaAs(001) hybrid structures for spintronic application

@article{ author = { J. Herfort and H.-P. Schönherr and A. Kawaharazuka and M. Ramsteiner and K. H. Ploog }, title = { Epitaxial growth of Fe₃Si/GaAs(001) hybrid structures for spintronic application }, journal = { Journal of Crystal Growth }, volume = { 278 }, year = { 2005 }, pages = { 666 } }

TY - JOUR AU - J. Herfort AU - H.-P. Schönherr AU - A. Kawaharazuka AU - M. Ramsteiner AU - K. H. Ploog TI - Epitaxial growth of Fe₃Si/GaAs(001) hybrid structures for spintronic application JF - Journal of Crystal Growth JA - J. Cryst. Growth J1 - JGC VL - 278 SP - 666 PY - 2005/01/01

Nitrogen incorporation in dilute group-III arsenide-nitrides

@article{ author = { M. Ramsteiner }, title = { Nitrogen incorporation in dilute group-III arsenide-nitrides }, journal = { Proceedings of the 2004 13th International Conference on Semiconducting and Insulating Materials (SIMC-XIII-2004); edited by Z. G. Wang, Y. H. Chen, and X. L. Ye, (Chinese Academy of Sciences, Beijing, 2005) }, volume = { }, year = { 2005 }, pages = { 179 } }

TY - JOUR AU - M. Ramsteiner TI - Nitrogen incorporation in dilute group-III arsenide-nitrides JF - Proceedings of the 2004 13th International Conference on Semiconducting and Insulating Materials (SIMC-XIII-2004); edited by Z. G. Wang, Y. H. Chen, and X. L. Ye, (Chinese Academy of Sciences, Beijing, 2005) JA - Proc. SIMC 13 J1 - VL - SP - 179 PY - 2005/01/01

Collosal magnetic moment of Gd in GaN

@article{ author = { S. Dhar and O. Brandt and M. Ramsteiner and V. F. Sapega and K. H. Ploog }, title = { Collosal magnetic moment of Gd in GaN }, journal = { Physical Review Letters }, volume = { 94 }, year = { 2005 }, pages = { 037205 } }

TY - JOUR AU - S. Dhar AU - O. Brandt AU - M. Ramsteiner AU - V. F. Sapega AU - K. H. Ploog TI - Collosal magnetic moment of Gd in GaN JF - Physical Review Letters JA - Phys. Rev. Lett. J1 - PRL VL - 94 SP - 037205 PY - 2005/01/01

Polarization of valence band holes in the (Ga,Mn)As diluted magnetic semiconductor

@article{ author = { V. F. Sapega and M. Moreno and M. Ramsteiner and L. Däweritz and K. H. Ploog }, title = { Polarization of valence band holes in the (Ga,Mn)As diluted magnetic semiconductor }, journal = { Physical Review Letters }, volume = { 94 }, year = { 2005 }, pages = { 137401 } }

TY - JOUR AU - V. F. Sapega AU - M. Moreno AU - M. Ramsteiner AU - L. Däweritz AU - K. H. Ploog TI - Polarization of valence band holes in the (Ga,Mn)As diluted magnetic semiconductor JF - Physical Review Letters JA - Phys. Rev. Lett. J1 - PRL VL - 94 SP - 137401 PY - 2005/01/01

Mismatch strain as a driving force for the annealing-induced formation of In-N bonds in (In,Ga)(As,N)

@article{ author = { M. Ramsteiner and G. Mussler and P. Kleinert and K. H. Ploog }, title = { Mismatch strain as a driving force for the annealing-induced formation of In-N bonds in (In,Ga)(As,N) }, journal = { Applied Physics Letters }, volume = { 87 }, year = { 2005 }, pages = { 111907 } }

TY - JOUR AU - M. Ramsteiner AU - G. Mussler AU - P. Kleinert AU - K. H. Ploog TI - Mismatch strain as a driving force for the annealing-induced formation of In-N bonds in (In,Ga)(As,N) JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 87 SP - 111907 PY - 2005/01/01