Terahertz-infrared spectroscopy of single crystalline m-type hexaferrite BaTi$_{\textrm{x}}$Fe$_{\textrm{12-x}}$O$_{\textrm{19}}$. Yegiyan, S. R., Alyabyeva, L. N., Torgashev, V. I., Vinnik, D. A., Gudkova, S. A., Prokhorov, A. S., Dressel, M., & Gorshunov, B. P. Journal of Physics: Conference Series, 1389(1):012038, November, 2019. Publisher: IOP Publishing
Terahertz-infrared spectroscopy of single crystalline m-type hexaferrite BaTi$_{\textrm{x}}$Fe$_{\textrm{12-x}}$O$_{\textrm{19}}$ [link]Paper  doi  abstract   bibtex   
We have studied polarization-dependent broad-band dielectric response of single-crystalline Ti-substituted barium hexaferrites BaTixFe12-xO19, x=0.64., 0.75, 1.1, in the frequency range from 10 to 8000 cm−1 and at temperatures from 5 to 300 K. In addition to a rich set of phonon resonances located at frequencies from 90 to 800 cm−1 we observed an unusual low-energy response (terahertz region, 10-100 cm−1) stemming from two different effects: relaxational process and second order spin-orbit coupling in Fe2+ ground state, that may set up new prospects for doped hexaferrites in terahertz technologies.
@article{yegiyan_terahertz-infrared_2019,
	title = {Terahertz-infrared spectroscopy of single crystalline m-type hexaferrite {BaTi}$_{\textrm{x}}${Fe}$_{\textrm{12-x}}${O}$_{\textrm{19}}$},
	volume = {1389},
	issn = {1742-6596},
	url = {https://dx.doi.org/10.1088/1742-6596/1389/1/012038},
	doi = {10.1088/1742-6596/1389/1/012038},
	abstract = {We have studied polarization-dependent broad-band dielectric response of single-crystalline Ti-substituted barium hexaferrites BaTixFe12-xO19, x=0.64., 0.75, 1.1, in the frequency range from 10 to 8000 cm−1 and at temperatures from 5 to 300 K. In addition to a rich set of phonon resonances located at frequencies from 90 to 800 cm−1 we observed an unusual low-energy response (terahertz region, 10-100 cm−1) stemming from two different effects: relaxational process and second order spin-orbit coupling in Fe2+ ground state, that may set up new prospects for doped hexaferrites in terahertz technologies.},
	language = {en},
	number = {1},
	urldate = {2023-11-11},
	journal = {Journal of Physics: Conference Series},
	author = {Yegiyan, S. R. and Alyabyeva, L. N. and Torgashev, V. I. and Vinnik, D. A. and Gudkova, S. A. and Prokhorov, A. S. and Dressel, M. and Gorshunov, B. P.},
	month = nov,
	year = {2019},
	note = {Publisher: IOP Publishing},
	pages = {012038},
}

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