| Инд. авторы: | Atuchin V.V., Khyzhun O.Y., Bekenev V.L., Sinelnichenko A.K., Isaenko L.I., Zhurkov S.A. |
| Заглавие: | Electronic structure of KTiOAsO4, a novel material for non-linear optical applications |
| Библ. ссылка: | Atuchin V.V., Khyzhun O.Y., Bekenev V.L., Sinelnichenko A.K., Isaenko L.I., Zhurkov S.A. Electronic structure of KTiOAsO4, a novel material for non-linear optical applications // Proceedings of SPIE - The International Society for Optical Engineering. - 2013. - Vol.8772. - Art.87721I. - ISSN 0277-786X. |
| Внешние системы: | DOI: 10.1117/12.2017597; РИНЦ: 20448873; SCOPUS: 2-s2.0-84880794606; |
| Реферат: | eng: A high-quality KTiOAsO4 (KTA) single crystal has been successfully synthesized employing the high temperature solution growth technique with rotating and pooling. The XPS valence-band spectra have been measured for pristine and the 1.5 keV Ar+ ion-bombarded thin (001)KTA plate cut from the crystal part that was without any optical inhomogeneities or domain boundaries. The present XPS measurements have revealed the existence of two O 2s subbands on the XPS spectrum of the pristine (001)KTA surface. It has been established that 1.5 keV Ar+ ion bombardment of the (001)KTA surface causes the complete elimination of the O 2s sub-band related to oxygen atoms involved in the formation of Ti-O-As bonds in KTA. In addition, the XPS results reveal that such a treatment leads to a significant decrease of the relative intensity of the XPS As5+ 3d core-level spectrum and causes the formation of the additional As0 3d core-level spectrum in the topmost layer of the (001)KTA surface. The experimental data are compared to the results of the first-principles band-structure calculations of KTA. © 2013 SPIE. |
| Ключевые слова: | Three dimensional; Surfaces; Single crystals; Photoelectrons; Nonlinear optics; Ion bombardment; Electronic structure; Calculations; Valence band spectra; Relative intensity; X ray photoelectron spectroscopy; Nonlinear optical applications; Ktioaso; High temperature solutions; Core-level spectra; Band structure calculation; X-ray photoelectron spectroscopy; KTiOAsO4; Electronic structure; Band-structure calculations; Optical inhomogeneities; |
| Издано: | 2013 |
| Конференция: | Название: Nonlinear Optics and Applications VII Даты проведения: 2013-04-15 - 2013-04-17 |