论文信息 - Dislocation scattering in copper

Dislocation scattering in copper

de Haas-van Alphen (DHVA) measurements have been carried out in fatigued copper crystals with average dislocation densities of approximately 1011 cm-2. The signals are unexpectedly large because the long-range strain fields of the individual dislocations are suppressed by correlations in their spatial distribution. This emphasises that dislocation arrangement as well as density is important in the DHVA effect. If the results are interpreted in terms of scattering, the ratio of the total (DHVA) scattering rate to the momentum-weighted (resistive) scattering rate is about ten, only four times larger than for impurity scattering. This implies that the dislocation scattering mechanism important in resistivity is large angle.

P. Coleridge | T. Sigfusson | G. Lonzarich | A. Howie | Z. S. Basinski

[1] R. Brown. The interaction of conduction electrons with dislocations and grain boundaries in metals , 1982 .

[2] D. Kerr,et al. Positron annihilation in fatigued copper , 1982 .

[3] S. Barnes. Spin waves in a spin glass , 1981 .

[4] M. Kaveh,et al. Correlation between electron-dislocation scattering and electron-impurity scattering in metals , 1981 .

[5] A. Korbel,et al. The temperature dependence of the saturation stress and dislocation substructure in fatigued copper single crystals , 1980 .

[6] E. Mann. Dislocation scattering and de Haas-van Alphen effect , 1979 .

[7] R. Brown. Electrical resistivity of dislocations in metals , 1977 .

[8] Z. S. Basinski,et al. Resistivity change with deformation of high purity Cu crystals and its subsequent recovery , 1977 .

[9] B. R. Watts. Dingle temperature plots in dislocated metals. I , 1977 .

[10] L. M. Brown,et al. Vacancy dipoles in fatigued copper , 1976 .

[11] J. Antonopoulos,et al. Weak-beam study of dislocation structures in fatigued copper , 1976 .

[12] R. Higgins,et al. de Haas-van Alphen effect study of dislocations in copper , 1975 .

[13] P. Coleridge,et al. The de Haas-van Alphen effect in dislocated crystals of copper , 1971 .

[14] C. T. Foxon,et al. An experimental determination of the electrical resistivity of dislocations in copper , 1967 .

[15] Z. S. Basinski,et al. RESISTIVITY OF DEFORMED CRYSTALS , 1967 .