K. M. Johansen

1.3k total citations
58 papers, 987 citations indexed

About

K. M. Johansen is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, K. M. Johansen has authored 58 papers receiving a total of 987 indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Materials Chemistry, 24 papers in Electrical and Electronic Engineering and 19 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in K. M. Johansen's work include ZnO doping and properties (46 papers), Ga2O3 and related materials (19 papers) and Copper-based nanomaterials and applications (16 papers). K. M. Johansen is often cited by papers focused on ZnO doping and properties (46 papers), Ga2O3 and related materials (19 papers) and Copper-based nanomaterials and applications (16 papers). K. M. Johansen collaborates with scholars based in Norway, United States and Germany. K. M. Johansen's co-authors include Lasse Vines, Ymir Kalmann Frodason, Tor S. Bjørheim, Joel B. Varley, Bengt Svensson, B. G. Svensson, Andrej Kuznetsov, Audrius Alkauskas, E. V. Monakhov and Knut Erik Knutsen and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Nano Letters and Applied Physics Letters.

In The Last Decade

K. M. Johansen

55 papers receiving 973 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
K. M. Johansen 881 529 410 147 70 58 987
Hiroko Kominami 758 0.9× 241 0.5× 406 1.0× 70 0.5× 95 1.4× 78 847
A. Mock 632 0.7× 552 1.0× 271 0.7× 213 1.4× 141 2.0× 35 842
N. A. Ismayilova 500 0.6× 270 0.5× 356 0.9× 41 0.3× 95 1.4× 72 706
Shigeo Itoh 722 0.8× 195 0.4× 474 1.2× 80 0.5× 31 0.4× 35 877
M. E. Zvanut 565 0.6× 395 0.7× 939 2.3× 94 0.6× 205 2.9× 99 1.3k
Gufei Zhang 572 0.6× 291 0.6× 268 0.7× 140 1.0× 239 3.4× 45 885
Lemin Jia 622 0.7× 562 1.1× 356 0.9× 129 0.9× 207 3.0× 34 889
Guangsha Shi 1.2k 1.3× 288 0.5× 722 1.8× 92 0.6× 133 1.9× 23 1.3k
F. Heigl 620 0.7× 281 0.5× 312 0.8× 67 0.5× 105 1.5× 37 766
Takitaro Morikawa 781 0.9× 183 0.3× 484 1.2× 37 0.3× 69 1.0× 34 909

Countries citing papers authored by K. M. Johansen

Since Specialization
Citations

This map shows the geographic impact of K. M. Johansen'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 K. M. Johansen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. M. Johansen more than expected).

Fields of papers citing papers by K. M. Johansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. M. Johansen. 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 K. M. Johansen. The network helps show where K. M. Johansen may publish in the future.

Co-authorship network of co-authors of K. M. Johansen

This figure shows the co-authorship network connecting the top 25 collaborators of K. M. Johansen. A scholar is included among the top collaborators of K. M. Johansen 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 K. M. Johansen. K. M. Johansen 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.
Frodason, Ymir Kalmann, et al.. (2024). Diffusion of Ge Donors in β‐Ga2O3. physica status solidi (b). 262(8). 1 indexed citations
2.
Frodason, Ymir Kalmann, et al.. (2024). Broad luminescence from Zn acceptors in Zn doped β-Ga2O3. APL Materials. 12(2). 7 indexed citations
3.
Frodason, Ymir Kalmann, et al.. (2023). Diffusion of Sn donors in β-Ga2O3. APL Materials. 11(4). 18 indexed citations
4.
Frodason, Ymir Kalmann, et al.. (2023). Trap-limited diffusion of Zn in β−Ga2O3. Physical Review Materials. 7(3). 4 indexed citations
5.
Ney, V., M De Souza, W. Jantsch, et al.. (2023). Valence state, lattice incorporation, and resulting magnetic properties of Ni in Zn/Co-based magnetic oxides. Journal of Applied Physics. 133(3).
6.
Karsthof, Robert, Lasse Vines, Holger von Wenckstern, et al.. (2023). Origin of enhanced conductivity in low dose ion irradiated oxides. AIP Advances. 13(1). 2 indexed citations
7.
Frodason, Ymir Kalmann, Joel B. Varley, K. M. Johansen, Lasse Vines, & Chris G. Van de Walle. (2023). Migration of Ga vacancies and interstitials in β−Ga2O3. Physical review. B.. 107(2). 38 indexed citations
8.
Johansen, K. M., et al.. (2021). Fermi level controlled point defect balance in ion irradiated indium oxide. Journal of Applied Physics. 130(8). 3 indexed citations
9.
Vines, Lasse, Ymir Kalmann Frodason, Andrej Kuznetsov, et al.. (2020). Experimental exploration of the amphoteric defect model by cryogenic ion irradiation of a range of wide band gap oxide materials. Journal of Physics Condensed Matter. 32(50). 415704–415704. 7 indexed citations
10.
Frodason, Ymir Kalmann, K. M. Johansen, Augustinas Galeckas, & Lasse Vines. (2019). Broad luminescence from donor-complexed LiZn and NaZn acceptors in ZnO. Physical review. B.. 100(18). 9 indexed citations
11.
Bazioti, Calliope, Alexander Azarov, K. M. Johansen, et al.. (2019). Role of Nitrogen in Defect Evolution in Zinc Oxide: STEM–EELS Nanoscale Investigations. The Journal of Physical Chemistry Letters. 10(16). 4725–4730. 13 indexed citations
12.
Zhan, Wei, Cecilie S. Granerød, Vishnukanthan Venkatachalapathy, et al.. (2018). Reply to Comment on ‘Nanoscale mapping of optical band gaps using monochromated electron energy loss spectroscopy’. Nanotechnology. 29(31). 318002–318002. 1 indexed citations
13.
Johansen, K. M., et al.. (2018). Influence of Fermi level position on vacancy-assisted diffusion of aluminum in zinc oxide. Physical review. B.. 98(24). 13 indexed citations
14.
Granerød, Cecilie S., Augustinas Galeckas, K. M. Johansen, Lasse Vines, & Øystein Prytz. (2018). The temperature-dependency of the optical band gap of ZnO measured by electron energy-loss spectroscopy in a scanning transmission electron microscope. Journal of Applied Physics. 123(14). 11 indexed citations
15.
Zhan, Wei, Cecilie S. Granerød, Vishnukanthan Venkatachalapathy, et al.. (2017). Nanoscale mapping of optical band gaps using monochromated electron energy loss spectroscopy. Nanotechnology. 28(10). 105703–105703. 17 indexed citations
16.
Frodason, Ymir Kalmann, K. M. Johansen, Tor S. Bjørheim, B. G. Svensson, & Audrius Alkauskas. (2017). Zn vacancy as a polaronic hole trap in ZnO. Physical review. B.. 95(9). 73 indexed citations
17.
Knutsen, Knut Erik, et al.. (2013). Diffusion and configuration of Li in ZnO. Journal of Applied Physics. 113(2). 20 indexed citations
18.
Look, D. C., et al.. (2013). Process dependence of H passivation and doping in H-implanted ZnO. Journal of Physics D Applied Physics. 46(5). 55107–55107. 15 indexed citations
19.
Johansen, K. M., et al.. (2010). Thermal stability of the OH–Li complex in hydrothermally grown single crystalline ZnO. Applied Physics Letters. 97(21). 16 indexed citations
20.
Leer, Egil, et al.. (1978). Group velocity of whistlers in a two‐ion plasma. Journal of Geophysical Research Atmospheres. 83(A7). 3125–3135. 11 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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