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Dr. Manfred Ramsteiner

Senior Scientist

Manfred Ramsteiner

phone: +49 30 20377 338

room: 0531

email: ramsteiner@pdi-berlin.de

Department: Semiconductor Spectroscopy

Core research areas: Ferromagnet/ semiconductor hybrid structures , Nanofabrication , III-V nanowires for optoelectronics

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91	Author	W. Braun , R. Shayduk , T. Flissikowski , M. Ramsteiner , H.T. Grahn , H. Riechert , P. Fons , A. Kolobov
	Title	Epitaxy of Ge-Sb-Te phase-change memory alloys
	Source	Appl. Phys. Lett. , 94 , 041902 ( 2009 )
Download: PDF \| 1982 Cite : Bibtex RIS @article{ author = { W. Braun and R. Shayduk and T. Flissikowski and M. Ramsteiner and H.T. Grahn and H. Riechert and P. Fons and A. Kolobov }, title = { Epitaxy of Ge-Sb-Te phase-change memory alloys }, journal = { Applied Physics Letters }, volume = { 94 }, year = { 2009 }, pages = { 041902 } } W. Braun, R. Shayduk, T. Flissikowski, M. Ramsteiner, H.T. Grahn, H. Riechert, P. Fons, and A. Kolobov TY - JOUR AU - W. Braun AU - R. Shayduk AU - T. Flissikowski AU - M. Ramsteiner AU - H.T. Grahn AU - H. Riechert AU - P. Fons AU - A. Kolobov TI - Epitaxy of Ge-Sb-Te phase-change memory alloys JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 94 SP - 041902 PY - 2009/01/01

92	Author	M. Hilse , Y. Takagaki , J. Herfort , M. Ramsteiner , C. Herrmann , S. Breuer , L. Geelhaar , H. Riechert
	Title	Ferromagnet-semiconductor nanowire coaxial heterostructures grown by molecular-beam epitaxy
	Source	Appl. Phys. Lett. , 95 , 133126 ( 2009 )
Download: PDF \| 2032 Cite : Bibtex RIS @article{ author = { M. Hilse and Y. Takagaki and J. Herfort and M. Ramsteiner and C. Herrmann and S. Breuer and L. Geelhaar and H. Riechert }, title = { Ferromagnet-semiconductor nanowire coaxial heterostructures grown by molecular-beam epitaxy }, journal = { Applied Physics Letters }, volume = { 95 }, year = { 2009 }, pages = { 133126 } } M. Hilse, Y. Takagaki, J. Herfort, M. Ramsteiner, C. Herrmann, S. Breuer, L. Geelhaar, and H. Riechert TY - JOUR AU - M. Hilse AU - Y. Takagaki AU - J. Herfort AU - M. Ramsteiner AU - C. Herrmann AU - S. Breuer AU - L. Geelhaar AU - H. Riechert TI - Ferromagnet-semiconductor nanowire coaxial heterostructures grown by molecular-beam epitaxy JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 95 SP - 133126 PY - 2009/01/01

93	Author	M. Ramsteiner , O. Brandt , T. Flissikowski , H.T. Grahn , M. Hashimoto , J. Herfort , H. Kostial
	Title	Co₂FeSi/GaAs/(Al,Ga)As spin light-emitting diodes: Competition between spin injection and ultrafast spin alignment
	Source	Phys. Rev. B , 78 , 121303(R) ( 2008 )
1928 Cite : Bibtex RIS @article{ author = { M. Ramsteiner and O. Brandt and T. Flissikowski and H.T. Grahn and M. Hashimoto and J. Herfort and H. Kostial }, title = { Co<sub>2</sub>FeSi/GaAs/(Al,Ga)As spin light-emitting diodes: Competition between spin injection and ultrafast spin alignment }, journal = { Physical Review B: Solid State }, volume = { 78 }, year = { 2008 }, pages = { 121303(R) } } M. Ramsteiner, O. Brandt, T. Flissikowski, H.T. Grahn, M. Hashimoto, J. Herfort, and H. Kostial TY - JOUR AU - M. Ramsteiner AU - O. Brandt AU - T. Flissikowski AU - H.T. Grahn AU - M. Hashimoto AU - J. Herfort AU - H. Kostial TI - Co<sub>2</sub>FeSi/GaAs/(Al,Ga)As spin light-emitting diodes: Competition between spin injection and ultrafast spin alignment JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 78 SP - 121303(R) PY - 2008/01/01

94	Author	V. F. Sapega , O. Brandt , M. Ramsteiner , K. H. Ploog , I. E. Panaiotti , N. S. Averkiev
	Title	Hole spin polarization in GaAs:Mn/AlAs multiple quantum wells
	Source	Phys. Rev. B , 75 , 113310 ( 2007 )
1754 Cite : Bibtex RIS @article{ author = { V. F. Sapega and O. Brandt and M. Ramsteiner and K. H. Ploog and I. E. Panaiotti and N. S. Averkiev }, title = { Hole spin polarization in GaAs:Mn/AlAs multiple quantum wells }, journal = { Physical Review B: Solid State }, volume = { 75 }, year = { 2007 }, pages = { 113310 } } V. F. Sapega, O. Brandt, M. Ramsteiner, K. H. Ploog, I. E. Panaiotti, and N. S. Averkiev TY - JOUR AU - V. F. Sapega AU - O. Brandt AU - M. Ramsteiner AU - K. H. Ploog AU - I. E. Panaiotti AU - N. S. Averkiev TI - Hole spin polarization in GaAs:Mn/AlAs multiple quantum wells JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 75 SP - 113310 PY - 2007/01/01

95	Author	J. Pedros , Y. Takagaki , T. Ive , M. Ramsteiner , O. Brandt , U. Jahn , K. H. Ploog , F. Calle
	Title	Exciton impact-ionization dynamics modulated by surface acoustic waves in GaN
	Source	Phys. Rev. B , 75 , 115305 ( 2007 )
Download: PDF \| 1798 Cite : Bibtex RIS @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 } } J. Pedros, Y. Takagaki, T. Ive, M. Ramsteiner, O. Brandt, U. Jahn, K. H. Ploog, and F. Calle 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

96	Author	V. F. Sapega , M. Ramsteiner , O. Brandt , L. Daweritz , K. H. Ploog
	Title	Hot-electron photoluminescence of para- and ferromagnetic (Ga,Mn)As layers
	Source	AIP Conf. Proc. , 893 , 1209 ( 2007 )
1821 Cite : Bibtex RIS @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 } } V. F. Sapega, M. Ramsteiner, O. Brandt, L. Daweritz, and K. H. Ploog 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

97	Author	T. J. Echtermeyer , M. C. Lemme , J. Bolten , M. Baus , M. Ramsteiner , H. Kurz
	Title	Graphene field-effect devices
	Source	Eur. Phys. J. Special Topics , 148 , 19 ( 2007 )
1917 Cite : Bibtex RIS @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 } } T. J. Echtermeyer, M. C. Lemme, J. Bolten, M. Baus, M. Ramsteiner, and H. Kurz 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

98	Author	V. F. Sapega , M. Ramsteiner , O. Brandt , L. Däweritz , K. H. Ploog
	Title	Hot-electron photoluminescence study of the (Ga,Mn)As diluted magnetic semiconductor
	Source	Phys. Rev. B , 73 , 235208 ( 2006 )
Download: PDF \| 1718 Cite : Bibtex RIS @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 } } V. F. Sapega, M. Ramsteiner, O. Brandt, L. Däweritz, and K. H. Ploog 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

99	Author	M.-H. Ham , S. Yoon , Y. Park , L. Bian , M. Ramsteiner , J.-M. Myoung
	Title	Electrical spin injection from room-temperature ferromagnetic (Ga,Mn)N in nitride-based spin-polarized light-emitting diodes
	Source	J. Phys.: Condens. Matter , 18 , 7703 ( 2006 )
1719 Cite : Bibtex RIS @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 } } M.-H. Ham, S. Yoon, Y. Park, L. Bian, M. Ramsteiner, and J.-M. Myoung 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

100	Author	J. Herfort , H.-P. Schönherr , A. Kawaharazuka , M. Ramsteiner , K. H. Ploog
	Title	Epitaxial growth of Fe₃Si/GaAs(001) hybrid structures for spintronic application
	Source	J. Cryst. Growth , 278 , 666 ( 2005 )
1346 Cite : Bibtex RIS @article{ author = { J. Herfort and H.-P. Schönherr and A. Kawaharazuka and M. Ramsteiner and K. H. Ploog }, title = { Epitaxial growth of Fe<sub>3</sub>Si/GaAs(001) hybrid structures for spintronic application }, journal = { Journal of Crystal Growth }, volume = { 278 }, year = { 2005 }, pages = { 666 } } J. Herfort, H.-P. Schönherr, A. Kawaharazuka, M. Ramsteiner, and K. H. Ploog TY - JOUR AU - J. Herfort AU - H.-P. Schönherr AU - A. Kawaharazuka AU - M. Ramsteiner AU - K. H. Ploog TI - Epitaxial growth of Fe<sub>3</sub>Si/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

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