U. Jahn

4.9k citations

193 papers · 4.0k indexed · h-index 32

Impact in

Condensed Matter Physics top 0.5%
- GaN-based semiconductor devices and materials
Electronic, Optical and Magnetic Materials top 2%
- Ga2O3 and related materials

Papers in ⓘ

Condensed Matter Physics 113
- GaN-based semiconductor devices and materials 105
Atomic and Molecular Physics, and Optics 95
- Semiconductor Quantum Structures and Devices 64
- Topological Materials and Phenomena 15

Co-authors: A. Trampert (44 shared papers)E. Calleja (21 shared papers)O. Brandt (34 shared papers)K. H. Ploog (32 shared papers)M. A. Sánchez-Garcı́a (13 shared papers)M. Ramsteiner (30 shared papers)Lutz Geelhaar (16 shared papers)Jelena Ristić (9 shared papers)
Journals: Applied Physics Letters (24 papers)Journal of Applied Physics (17 papers)Journal of Crystal Growth (12 papers)Physical Review B (12 papers)Semiconductor Science and Technology (10 papers)
Partner nations: Germany Spain China

In The Last Decade

U. Jahn

189 papers receiving 3.9k citations

Peers

Countries citing papers authored by U. Jahn

Since Specialization

Citations

This map shows the geographic impact of U. Jahn's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by U. Jahn with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites U. Jahn more than expected).

Fields of papers citing papers by U. Jahn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by U. Jahn. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by U. Jahn. The network helps show where U. Jahn may publish in the future.

Co-authors

The 25 scholars most cited alongside U. Jahn, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with U. Jahn Line = papers co-authored together U. Jahn links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 193 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Luminescence properties and defects in GaN nanocolumns grown by molecular beam epitaxy Physical review. B, Condensed matter ·E. Calleja, M. A. Sánchez-Garcı́a, F.J. Sánchez, F. Calle, F. B. Naranjo, E. Muñoz, U. Jahn, K. Ploog	2000	314
2	On the mechanisms of spontaneous growth of III-nitride nanocolumns by plasma-assisted molecular beam epitaxy Journal of Crystal Growth ·Jelena Ristić, E. Calleja, Sergio Fernández‐Garrido, L. Cerutti, A. Trampert, U. Jahn, K. H. Ploog	2008	144
3	Impact of nucleation conditions on the structural and optical properties of M-plane GaN(1100) grown on γ-LiAlO2 Journal of Applied Physics ·Yue Sun, O. Brandt, U. Jahn, Tian Yu Liu, A. Trampert, Sven Cronenberg, Subhabrata Dhar, K. H. Ploog	2002	129
4	Growth, morphology, and structural properties of group‐III‐nitride nanocolumns and nanodisks physica status solidi (b) ·E. Calleja, Jelena Ristić, Sergio Fernández‐Garrido, L. Cerutti, M. A. Sánchez-Garcı́a, J. Grandal, A. Trampert, U. Jahn, (unknown), Amadeu Griol, Bruno Sánchez	2007	122
5	The nanorod approach: GaN NanoLEDs for solid state lighting Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics ·A. Waag, Xue Wang, Sönke Fündling, Johannes Ledig, Milena Erenburg, R. Neumann, Mohamed Al Suleiman, Stephan Merzsch, Jiandong Wei, Shufeng Li, Hergo H. Wehmann, Werner Bergbauer, Martin Straßburg, A. Trampert, U. Jahn, Henning Riechert	2011	121
6	Identification of optical transitions in cubic and hexagonal GaN by spatially resolved cathodoluminescence Physical review. B, Condensed matter ·J. Menniger, U. Jahn, O. Brandt, Hui Yang, K. Ploog	1996	119
7	Luminescence of GaAs nanowires consisting of wurtzite and zinc-blende segments Physical Review B ·U. Jahn, Jonas Lähnemann, Carsten Pfüller, O. Brandt, Steffen Breuer, B. Jenichen, M. Ramsteiner, Lutz Geelhaar, H. Riechert	2012	108
8	Coaxial Multishell (In,Ga)As/GaAs Nanowires for Near-Infrared Emission on Si Substrates Nano Letters ·Emmanouil Dimakis, U. Jahn, M. Ramsteiner, Abbès Tahraoui, J. Grandal, Xiang Kong, Oliver Marquardt, A. Trampert, Henning Riechert, Lutz Geelhaar	2014	100
9	Characterization of GaN quantum discs embedded inAlxGa1−xNnanocolumns grown by molecular beam epitaxy Physical review. B, Condensed matter ·Jelena Ristić, E. Calleja, M. A. Sánchez-Garcı́a, J. M. Ulloa, J. Sanchez-Páramo, J. M. Calleja, U. Jahn, A. Trampert, K. H. Ploog	2003	100
10	Direct experimental determination of the spontaneous polarization of GaN Physical Review B ·Jonas Lähnemann, O. Brandt, U. Jahn, Carsten Pfüller, C. Roder, P. Dogan, Frank Große, Abderrezak Belabbes, F. Bechstedt, A. Trampert, Lutz Geelhaar	2012	95
11	Understanding the selective area growth of GaN nanocolumns by MBE using Ti nanomasks Journal of Crystal Growth ·A. Bengoechea‐Encabo, Francesca Barbagini, Sergio Fernández‐Garrido, J. Grandal, Jelena Ristić, M. A. Sánchez-Garcı́a, E. Calleja, U. Jahn, E. Luna, A. Trampert	2011	91
12	Self-Assisted Nucleation and Vapor–Solid Growth of InAs Nanowires on Bare Si(111) Crystal Growth & Design ·Emmanouil Dimakis, Jonas Lähnemann, U. Jahn, Steffen Breuer, Maria Hilse, Lutz Geelhaar, Henning Riechert	2011	84
13	Continuous-Flow MOVPE of Ga-Polar GaN Column Arrays and Core–Shell LED Structures Crystal Growth & Design ·Xue Wang, Shufeng Li, Matin Sadat Mohajerani, Johannes Ledig, H.‐H. Wehmann, Martin Mandl, Martin Straßburg, U. Steegmüller, U. Jahn, Jonas Lähnemann, Henning Riechert, Ian Griffiths, D. Cherns, A. Waag	2013	75
14	Weak antilocalization and electron-electron interaction effects in Cu-doped Bi2Se3films Physical Review B ·Y. Takagaki, B. Jenichen, U. Jahn, M. Ramsteiner, K.‐J. Friedland	2012	73
15	Photon anti-bunching in acoustically pumped quantum dots Nature Photonics ·O. D. D. Couto, S. Lazić, F. Iikawa, J. A. H. Stotz, U. Jahn, R. Hey, P. V. Santos	2009	71
16	Effects of nanowire coalescence on their structural and optical properties on a local scale Applied Physics Letters ·Vincent Consonni, M. Knelangen, U. Jahn, A. Trampert, Lutz Geelhaar, H. Riechert	2009	69
17	ColumnarAlGaN/GaNNanocavities withAlN/GaNBragg Reflectors Grown by Molecular Beam Epitaxy on Si(111) Physical Review Letters ·Jelena Ristić, E. Calleja, A. Trampert, Sergio Fernández‐Garrido, C. Rivera, U. Jahn, K. H. Ploog	2005	65
18	Giant asymmetry of the longitudinal magnetoresistance in high-mobility two-dimensional electron gas on a cylindrical surface Physical Review B ·А. Б. Воробьев, K.‐J. Friedland, H. Kostial, R. Hey, U. Jahn, E. Wiebicke, Ju. S. Yukecheva, V. Ya. Prinz	2007	51
19	AlGaN Nanocolumns Grown by Molecular Beam Epitaxy: Optical and Structural Characterization physica status solidi (a) ·J. Risti, M.A. S�nchez-Garc�a, E. Calleja, J. Sanchez-P�ramo, J. M. Calleja, U. Jahn, K. H. Ploog	2002	50
20	Investigations on V-defects in quaternary AlInGaN epilayers Applied Physics Letters ·J. P. Liu, Y. T. Wang, Haichun Yang, Desheng Jiang, U. Jahn, K. H. Ploog	2004	47

About U. Jahn

U. Jahn is a scholar working on Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Materials Chemistry, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials, having authored 193 papers that have together received 4.0k indexed citations. Recurring topics across this work include GaN-based semiconductor devices and materials (105 papers), Semiconductor Quantum Structures and Devices (64 papers), Ga2O3 and related materials (58 papers), ZnO doping and properties (40 papers), Semiconductor materials and devices (29 papers), Nanowire Synthesis and Applications (26 papers), Metal and Thin Film Mechanics (18 papers) and Topological Materials and Phenomena (15 papers). The work is most often cited by research in Condensed Matter Physics (2.6k citations), Electronic, Optical and Magnetic Materials (1.5k citations), Atomic and Molecular Physics, and Optics (1.5k citations), Materials Chemistry (2.0k citations) and Biomedical Engineering (1.3k citations). U. Jahn has collaborated with scholars based in Germany, Spain and China. Frequent co-authors include A. Trampert, E. Calleja, O. Brandt, K. H. Ploog, M. A. Sánchez-Garcı́a, M. Ramsteiner, Lutz Geelhaar, Jelena Ristić, K. Ploog and B. Jenichen. Their work appears in journals such as Applied Physics Letters, Journal of Applied Physics, Journal of Crystal Growth, Physical Review B and Semiconductor Science and Technology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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