Influence of a weak magnetic field on microplasticity of silicon crystals

Electromagnetoelasticity Effect in Silicon

“…Thus, in this part of the work on silicon single crystals, an increase in the mobility of dislocation segments during the plastic deformation of samples preliminarily held in a constant magnetic field was observed. The results obtained agree with the data of other authors [7,10,11].…”

“…Thus, when considering magnetoplastic effects in semiconductors, the most interesting question is the formation and structure of magnetosensitive complexes, their interaction with other structural defects (for example, dislocations), as well as the dynamics of this interaction after exposure to the magnetic field and electric current [11].…”

A study on the room-temperature magnetoplastic effect of silicon and its mechanism

“…Due to the potential application in semiconductor industry, the magnetic memories of monocrystalline silicon have attracted much attention. In present researches, it has been found that exposing silicon to a magnetic field at room temperature can increase the dislocation mobility in the subsequent high-temperature plastic deformation [11,12,19,20,43], while if expose silicon simultaneously to a magnetic field and a microwave satisfying the electron-paramagneticresonance conditions, the dislocation mobility in the subsequent high-temperature plastic deformation will decrease dramatically [14,15]. The researchers put forward that the residual influence of magnetic treatment on the dislocation mobility is due to that the magnetic field caused various changes to the point defects in the silicon crystal, thus affecting their hindrance to dislocation movement.…”

“…Magnetoplastic effects firstly reported in 1987 [1] originally referred to the phenomena that a magnetic field affects the dislocation-controlled plasticity of solids including ionic [1][2][3][4][5][6][7][8], covalent [6,[9][10][11][12][13][14][15][16][17][18][19][20] and metallic [3,4,[21][22][23][24][25][26] crystals. With the deepening of the relevant researches, a variety of effects of magnetic field on the microstructures [27][28][29][30][31][32][33][34][35][36] and properties [34,[36][37][38][39][40][41][42][43]…”