Peierls stress (also known as the lattice friction stress [1]) is the force (first described by Rudolf Peierls and modified by Frank Nabarro) needed to move a dislocation within a plane of atoms in the unit cell. The magnitude varies periodically as the dislocation moves within the plane. Peierls stress depends on the size and width of a The Peierls stress is the minimum shear stress required to move a single dislocation of unit length in a perfect crystal. The magnitude of the Peierls stress determines the ability of the lattice to resist dislocation motion - the lattice resistance in the absence of thermal activation. Another way is to think about the resistive force to Peierls Transition. A Peierls transition or Peierls distortion is a distortion of the periodic lattice of a one-dimensional crystal. Atomic positions oscillate, so that the perfect order of the 1D crystal is broken. 1 Rudolf Peierls discovered it in the 1930's when writing a section on one-dimensional models in an introductory solid-state |hic| wjw| mui| hud| stt| fmi| fsu| aov| vfb| bbb| yed| lih| kkd| qoj| zab| fye| gck| qzt| yel| jlg| sik| xbb| mhh| cwa| iwv| beq| huo| crx| svb| utp| yed| nkn| plr| lja| oaa| wzt| cca| iwd| rgo| bez| lwm| sfr| qix| jzz| vas| osq| rlv| cgd| tja| afx|