Accession Number : AD0701793

Title :   VACANCY-INTERSTITIAL PAIRS IN QUANTUM CRYSTALS.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS UNIV AMHERST DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Mullin,William J.

Report Date : 02 MAR 1970

Pagination or Media Count : 10

Abstract : A cell model Hamiltonian which describes particles on lattice sites with possible tunneling to surrounding interstitial sites is used to describe quantum crystal phenomena including Frenkel vacancy-interstitial pairs in the ground state, pair wave and Schottky vacancy wave excited states, exchange, and the transition to the superfluid state. (Author)

Descriptors :   (*BOSONS, CRYSTAL DEFECTS), BAND THEORY OF SOLIDS, SOLIDIFIED GASES, ANTIFERROMAGNETISM, SUPERFLUIDITY, FERMIONS, HELIUM

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE