Theoretical implications of the stress and magnetic field splitting of the GRl line in diamond
نویسنده
چکیده
The g value of the excited state associated with the GR1 line is analysed in terms of the Coulson-Kearsley defect-molecule model for the vacancy in diamond. It is shown that the experimentally observed g value is entirely consistent with the expected ’T, level of the model provided quenching by the dynamic Jahn-Teller effect is considered. This quenching is estimated from stress splitting data for the GR1 line. The result supports strongly the view that the GR1 centre is the neutral vacancy.
منابع مشابه
Damping Ratio in Micro-Beam Resonators Based on Magneto-Thermo-Elasticity
This paper investigates damping ratio in micro-beam resonators based on magneto-thermo-elasticity. A unique aspect of the present study is the effect of permanent magnetic field on the stiffness and thermo-elastic damping of the micro resonators. In our modeling the theory of thermo-elasticity with interacting of an externally applied permanent magnetic field is taken into account. Combined the...
متن کاملMagneto-Thermo-Elastic Stresses and Perturbation of Magnetic Field Vector in a Thin Functionally Graded Rotating Disk
In this paper, a semi-analytical solution for magneto-thermo-elastic problem in an axisymmetric functionally graded (FG) hollow rotating disk with constant thickness placed in uniform magnetic and thermal fields with heat convection from disk’s surfaces is presented. Solution for stresses and perturbation of magnetic field vector in a thin FG rotating disk is determined using infinitesimal theo...
متن کاملStress Analysis of Magneto Thermoelastic and Induction Magnetic Filed in FGM Hallow Sphere
In this paper a closed form solution for one-dimensional magnetothermoelastic problem in a functionally graded material (FGM) hollow sphere placed in a uniform magnetic field and temperature field subjected to an internal pressure is obtained using the theory of magnetothermoelasticity. Hyper-geometric functions are employed to solve the governing equation. The material properties through the g...
متن کاملInfluence of Induced Magnetic Field and Partial Slip on the Peristaltic Flow of a Couple Stress Fluid in an Asymmetric Channel
This paper describes the effects of induced magnetic field and partial slip on the peristaltic flow of a couple stress fluids in an asymmetric channel. The two dimensional equation of couple stress fluid are simplified by making the assumptions of long wave length and low Reynolds number. The exact solutions of reduced momentum equation and magnetic force function have been computed in wave...
متن کاملTorsional Waves in Prestressed Fiber Reinforced Medium Subjected to Magnetic Field
The propagation of torsional waves in a prestressed fiber-reinforced half-space under the effect of magnetic field and gravity has been discussed. The problem has been solved analytically using Whittaker function to obtain the exact solution frequency equations. Numerical results for stress, gravity and magnetic field are given and illustrated graphically. Comparisons are made with the results ...
متن کامل