Electron Drag and Flow Stress in Niobium and Lead at 4.2°K
Hideo KojimaThe Institute for Solid State Physics, The University of Tokyo, Roppongi, Minatoku, Tokyo, JapanTakaya SuzukiThe Institute for Solid State Physics, The University of Tokyo, Roppongi, Minatoku, Tokyo, Japan
1968en
ABI
Abstract
It has been found that the flow stresses of superconducting niobium and lead at 4.2\ifmmode^\circ\else\textdegree\fi{}K increase in the transition between superconducting and normal states produced by an external magnetic field. The ratio of the increment to the flow stress in the superconducting state is 2.9% in lead and 0.6% in niobium. It is concluded that the conduction electrons in the normal metals are impeditive for the motion of dislocations.
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Cited by 40 references