VACANCY-INTERSTITIAL PAIRS IN QUANTUM CRYSTALS.

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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

Author(s):
Mullin, William J.
Author Organization(s):
MASSACHUSETTS UNIV AMHERST DEPT OF PHYSICS AND ASTRONOMY
Descriptive Note:
Technical rept.,
Pagination:
0010

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-67-A-0230-0003
Project Number(s):
NR-017-648
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*BOSONS, CRYSTAL DEFECTS), BAND THEORY OF SOLIDS, SOLIDIFIED GASES, ANTIFERROMAGNETISM, SUPERFLUIDITY, FERMIONS, HELIUM
Field(s)/Group(s):
Solid State Physics
Keyword(s):
*QUANTUM CRYSTALS, HEISENBERG MODEL, HELIUM 3, HELIUM 4, INTERSTITIALS, ELEMENTARY EXCITATIONS, EXCHANGE INTERACTIONS
Report Date:
1970 Mar 02