T. Graf

1.3k total citations
40 papers, 1.0k citations indexed

About

T. Graf is a scholar working on Materials Chemistry, Condensed Matter Physics and Electrical and Electronic Engineering. According to data from OpenAlex, T. Graf has authored 40 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Materials Chemistry, 14 papers in Condensed Matter Physics and 13 papers in Electrical and Electronic Engineering. Recurrent topics in T. Graf's work include GaN-based semiconductor devices and materials (13 papers), ZnO doping and properties (11 papers) and Ga2O3 and related materials (8 papers). T. Graf is often cited by papers focused on GaN-based semiconductor devices and materials (13 papers), ZnO doping and properties (11 papers) and Ga2O3 and related materials (8 papers). T. Graf collaborates with scholars based in Germany, United States and Japan. T. Graf's co-authors include Martin S. Brandt, M. Stutzmann, O. Ambacher, M. Gjukic, J. B. Philipp, Sebastian T. B. Goennenwein, T Walther, D. D. Sarma, D. Topwal and A. Erb and has published in prestigious journals such as SHILAP Revista de lepidopterología, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

T. Graf

36 papers receiving 990 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
T. Graf Germany 13 622 608 540 298 182 40 1.0k
E.K. Hlil France 20 556 0.9× 747 1.2× 544 1.0× 207 0.7× 129 0.7× 58 1.0k
E. Kulatov Russia 17 583 0.9× 523 0.9× 396 0.7× 213 0.7× 446 2.5× 79 996
A. Navarro‐Quezada Austria 16 691 1.1× 453 0.7× 351 0.7× 238 0.8× 236 1.3× 42 858
V. Ney Germany 18 855 1.4× 572 0.9× 322 0.6× 182 0.6× 251 1.4× 57 1.1k
M. Schmidt Poland 13 393 0.6× 573 0.9× 382 0.7× 111 0.4× 206 1.1× 44 830
V. L. Svetchnikov Ukraine 17 458 0.7× 413 0.7× 525 1.0× 159 0.5× 158 0.9× 71 898
M. Garter United States 11 744 1.2× 523 0.9× 836 1.5× 519 1.7× 201 1.1× 16 1.1k
V.E. Bougrov Russia 16 433 0.7× 361 0.6× 371 0.7× 299 1.0× 178 1.0× 94 778
A. A. Schafgans United States 15 233 0.4× 458 0.8× 415 0.8× 246 0.8× 237 1.3× 27 919
T. Kammermeier Germany 16 801 1.3× 485 0.8× 331 0.6× 155 0.5× 132 0.7× 25 882

Countries citing papers authored by T. Graf

Since Specialization
Citations

This map shows the geographic impact of T. Graf'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 T. Graf with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Graf more than expected).

Fields of papers citing papers by T. Graf

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T. Graf. 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 T. Graf. The network helps show where T. Graf may publish in the future.

Co-authorship network of co-authors of T. Graf

This figure shows the co-authorship network connecting the top 25 collaborators of T. Graf. A scholar is included among the top collaborators of T. Graf based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with T. Graf. T. Graf is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Graf, T., et al.. (2021). A One-Inch Aperture Piezoelectric Tunable Lens with Small Footprint. 427–430. 1 indexed citations
2.
Graf, T., et al.. (2018). In-situ Beschreibung des Wurzelsystems von Hopfen und Mais über Freilegung am Bodenprofil. SHILAP Revista de lepidopterología. 69(2). 121–130. 1 indexed citations
3.
Graf, T.. (2017). The Sultan’s Renegades. Oxford University Press eBooks. 10 indexed citations
4.
Mills, Matthew S., Georgios A. Siviloglou, Nikolaos K. Efremidis, et al.. (2012). Localized waves with spherical harmonic symmetries. Journal of International Crisis and Risk Communication Research. 1 indexed citations
5.
Graf, T., Demetrios N. Christodoulides, Matthew S. Mills, et al.. (2012). Propagation of Gaussian-apodized paraxial beams through first-order optical systems via complexcoordinate transforms and ray transfer matrices. Journal of the Optical Society of America A. 29(9). 1860–1860. 4 indexed citations
6.
Mills, Matthew S., Georgios A. Siviloglou, Nikolaos K. Efremidis, et al.. (2012). Localized waves with spherical harmonic symmetries. Physical Review A. 86(6). 10 indexed citations
7.
Graf, T., Jerome V. Moloney, & Shankar C. Venkataramani. (2012). Asymptotic analysis of weakly nonlinear Bessel–Gauß beams. Physica D Nonlinear Phenomena. 243(1). 32–44. 3 indexed citations
8.
Graf, T. & Vladimir Oliker. (2012). An optimal mass transport approach to the near-field reflector problem in optical design. Inverse Problems. 28(2). 25001–25001. 5 indexed citations
9.
Graf, T., et al.. (2008). Photothermal thickness measurement of multilayered structures: An experimental and numerical analysis. Journal of Applied Physics. 103(3). 5 indexed citations
10.
Cowern, N. E. B., B. Colombeau, J. D. Benson, et al.. (2005). Mechanisms of B deactivation control by F co-implantation. Applied Physics Letters. 86(10). 55 indexed citations
11.
Gelhausen, O., E. Malguth, Matthew R. Phillips, et al.. (2004). Doping-level-dependent optical properties of GaN:Mn. Applied Physics Letters. 84(22). 4514–4516. 27 indexed citations
12.
Brandt, M. S., Sebastian T. B. Goennenwein, T. Graf, et al.. (2004). Spin‐dependent transport in elemental and compound semiconductors and nanostructures. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 1(8). 2056–2093. 16 indexed citations
13.
Graf, T., Sebastian T. B. Goennenwein, & Martin S. Brandt. (2003). Prospects for carrier‐mediated ferromagnetism in GaN. physica status solidi (b). 239(2). 267–267. 2 indexed citations
14.
Graf, T., M. Gjukic, Martin Hermann, et al.. (2003). Growth and characterization of GaN:Mn epitaxial films. Journal of Applied Physics. 93(12). 9697–9702. 30 indexed citations
15.
Graf, T., M. Gjukic, Martin Hermann, et al.. (2003). Publisher’s Note: Spin resonance investigations ofMn2+in wurtzite GaN and AlN films [Phys. Rev. B67, 165215 (2003)]. Physical review. B, Condensed matter. 67(20). 1 indexed citations
16.
Kohl, Florian J., et al.. (2003). Photoconductivity and spin-dependent photoconductivity of hydrosilylated (111) silicon surfaces. Applied Physics Letters. 82(4). 565–567. 14 indexed citations
17.
Schmidt, Matthias, T. Graf, L. Görgens, et al.. (2002). Dependence of the doping efficiency on material composition in n-type a-SiO :H. Journal of Non-Crystalline Solids. 299-302. 579–584. 3 indexed citations
18.
Graf, T., M. Gjukic, Martin S. Brandt, M. Stutzmann, & O. Ambacher. (2002). The Mn3+/2+ acceptor level in group III nitrides. Applied Physics Letters. 81(27). 5159–5161. 177 indexed citations
19.
Bayerl, M. W., Martin S. Brandt, T. Graf, et al.. (2001). gvalues of effective mass donors inAlxGa1−xNalloys. Physical review. B, Condensed matter. 63(16). 44 indexed citations
20.
Link, A., T. Graf, R. Dimitrov, et al.. (2001). Transport Properties of Two-Dimensional Electron Gases Induced by Spontaneous and Piezoelectric Polarisation in AlGaN/GaN Heterostructures. physica status solidi (b). 228(2). 603–606. 7 indexed citations

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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