M. I. Pavlenko, A. Yu. Neliubov, I. Yu. Eremchev, V. S. Sedov, I. A. Tiazhelov, A. K. Martyanov
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引用次数: 0
Abstract
We presented the results of low-temperature photoluminescence (PL) spectra investigations of diamond microcrystals with germanium-vacancy GeV color centers. The microdiamonds were synthesized by plasma chemical vapor deposition (CVD) using gaseous germanium as an impurity source. The PL spectra of single microdiamonds at 8 K contain either a single or a few narrow lines spreading between 600 and 606 nm instead of zero-phonon line quartet characteristic for GeV-centers. The observed 100% polarization contrast of individual spectral line is indirect evidence that the corresponding emission originates from single GeV-center. The deviations of the obtained PL peak positions from the expected ones are explained by the lattice stresses, introduced during the synthesis of microcrystals. The widths of the observed spectral lines appear to be significantly smaller than the characteristic values obtained for ensembles of GeV-centers earlier.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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