Search results for "Electron resonance"
showing 4 items of 4 documents
Determination of local defect density in diamond by double electron-electron resonance
2021
Magnetic impurities in diamond influence the relaxation properties and thus limit the sensitivity of magnetic, electric, strain, and temperature sensors based on nitrogen-vacancy color centers. Diamond samples may exhibit significant spatial variations in the impurity concentrations hindering the quantitative analysis of relaxation pathways. Here, we present a local measurement technique which can be used to determine the concentration of various species of defects by utilizing double electron-electron resonance. This method will help to improve the understanding of the physics underlying spin relaxation and guide the development of diamond samples, as well as offering protocols for optimiz…
Structural properties of the range-II- and range-III order in amorphous-SiO2 probed by electron paramagnetic resonance and Raman spectroscopy
2010
In the present work we report an experimental investigation by electron paramagnetic resonance spectroscopy on the hyperfine structure of the E. point defect, probing the local arrangement of the network (range-II order), and by Raman spectroscopy on the D 1 and D 2 lines, probing mean features of the network (range-III order). Our studies, performed on a-SiO 2 samples thermally treated at 1000 °C in air for different time durations, show that changes of the hyperfine structure and of the D 1 and D 2 lines occur in a correlated way. These results give strong evidence that the range-II and range-III order properties are intimately related to each other and that these properties are determine…
Electron resonance scattering from mercury
1977
The differential cross section and the spin polarisation of electrons scattered elastically from mercury have been measured as a function of collision energy in the range 4.0 to 6.0 eV for several selected scattering angles. The observed data can be understood if one assumes that resonances are formed at 4.55 eV in the 2S1/2, at 4.71 eV in the 2D3/2 and at 4.94 eV and 5.51 eV respectively in the 2D5/2 scattering state.