Accession Number : AD0718985

Title :   Theoretical Studies of Defect Motion in Crystals.

Descriptive Note : Final technical rept. 1 Feb 69-31 Aug 70,

Corporate Author : BROWN UNIV PROVIDENCE R I DIV OF ENGINEERING

Personal Author(s) : Weiner,Jerome H.

Report Date : 23 OCT 1970

Pagination or Media Count : 7

Abstract : A final technical report on the work done under the Grant is presented. The principal accomplishments described are: (1) The development of a new quantum rate theory for the motion of defects in crystals which includes thermal activation and quantum mechanical tunneling on an equal footing. (2) The development of a new method for the numerical solution of the time-dependent Schrodinger equation which is substantially faster (by a factor of about 30) than previously available methods. (Author)

Descriptors :   (*CRYSTAL DEFECTS, MOTION), (*PARTIAL DIFFERENTIAL EQUATIONS, *QUANTUM THEORY), DISLOCATIONS, TUNNELING(ELECTRONICS), HYDROGEN, CHEMICAL BONDS, NUMERICAL ANALYSIS, NUMERICAL INTEGRATION

Subject Categories : Physical Chemistry
      Quantum Theory and Relativity
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE