{"title":"Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC","year":"2009","publication_status":"published","type":"journal_article","language":[{"iso":"eng"}],"user_id":"55706","article_type":"original","abstract":[{"text":"EPR and ESE in nitrogen doped 4H- and 6H-SiC show besides the well known triplet lines of 14N on quasi-cubic (Nc,k) and hexagonal (Nc,h) sites additional lines (Nx) of comparatively low intensity providing half the hf splitting of Nc,k. Frequently re-interpreted as spin-forbidden lines, arising from Nc,k pairs and triads or resulting from hopping conductivity, only recently the theoretical calculation of the corresponding g-tensors lead to a tentative model of distant NC donor pairs on inequivalent lattice sites which are coupled to S = 1 assuming a fine-structure splitting too small to be observed in the EPR and ESE experiments. In this work, we present ESE nutation measurements confirming S = 1 for the Nx center. Analysing the nutation frequencies in comparison with that of the Nc,k (S = 1/2) spectrum as well as the line width of ESE and EPR spectra we obtain a rough estimate between 5×104 cm-1 and 50×104 cm-1 for the fine-structure splitting demonstrating efficient spin-coupling between nitrogen donors in 4H-SiC.","lang":"eng"}],"_id":"4225","page":"343-346","date_updated":"2022-01-06T07:00:39Z","status":"public","date_created":"2018-08-28T13:09:27Z","publication_identifier":{"issn":["1662-9752"]},"volume":"615-617","author":[{"first_name":"D.V.","full_name":"Savchenko, D.V.","last_name":"Savchenko"},{"last_name":"Pöppl","full_name":"Pöppl, Andreas","first_name":"Andreas"},{"first_name":"Ekaterina N.","last_name":"Kalabukhova","full_name":"Kalabukhova, Ekaterina N."},{"full_name":"Greulich-Weber, Siegmund","last_name":"Greulich-Weber","first_name":"Siegmund"},{"full_name":"Rauls, Eva","last_name":"Rauls","first_name":"Eva"},{"full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","first_name":"Wolf Gero"},{"first_name":"Uwe","last_name":"Gerstmann","full_name":"Gerstmann, Uwe"}],"department":[{"_id":"15"}],"publisher":"Trans Tech Publications","citation":{"mla":"Savchenko, D. V., et al. “Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC.” <i>Materials Science Forum</i>, vol. 615–617, Trans Tech Publications, 2009, pp. 343–46, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/msf.615-617.343\">10.4028/www.scientific.net/msf.615-617.343</a>.","bibtex":"@article{Savchenko_Pöppl_Kalabukhova_Greulich-Weber_Rauls_Schmidt_Gerstmann_2009, title={Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC}, volume={615–617}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/msf.615-617.343\">10.4028/www.scientific.net/msf.615-617.343</a>}, journal={Materials Science Forum}, publisher={Trans Tech Publications}, author={Savchenko, D.V. and Pöppl, Andreas and Kalabukhova, Ekaterina N. and Greulich-Weber, Siegmund and Rauls, Eva and Schmidt, Wolf Gero and Gerstmann, Uwe}, year={2009}, pages={343–346} }","ama":"Savchenko DV, Pöppl A, Kalabukhova EN, et al. Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC. <i>Materials Science Forum</i>. 2009;615-617:343-346. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/msf.615-617.343\">10.4028/www.scientific.net/msf.615-617.343</a>","short":"D.V. Savchenko, A. Pöppl, E.N. Kalabukhova, S. Greulich-Weber, E. Rauls, W.G. Schmidt, U. Gerstmann, Materials Science Forum 615–617 (2009) 343–346.","apa":"Savchenko, D. V., Pöppl, A., Kalabukhova, E. N., Greulich-Weber, S., Rauls, E., Schmidt, W. G., &#38; Gerstmann, U. (2009). Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC. <i>Materials Science Forum</i>, <i>615</i>–<i>617</i>, 343–346. <a href=\"https://doi.org/10.4028/www.scientific.net/msf.615-617.343\">https://doi.org/10.4028/www.scientific.net/msf.615-617.343</a>","chicago":"Savchenko, D.V., Andreas Pöppl, Ekaterina N. Kalabukhova, Siegmund Greulich-Weber, Eva Rauls, Wolf Gero Schmidt, and Uwe Gerstmann. “Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC.” <i>Materials Science Forum</i> 615–617 (2009): 343–46. <a href=\"https://doi.org/10.4028/www.scientific.net/msf.615-617.343\">https://doi.org/10.4028/www.scientific.net/msf.615-617.343</a>.","ieee":"D. V. Savchenko <i>et al.</i>, “Spin-Coupling in Heavily Nitrogen-Doped 4H-SiC,” <i>Materials Science Forum</i>, vol. 615–617, pp. 343–346, 2009."},"publication":"Materials Science Forum","doi":"10.4028/www.scientific.net/msf.615-617.343"}