Model valence-fluctuation systems: variational ground states and magnetic responses

Conference · Tue Apr 01 00:00:00 EST 1980

DOI:https://doi.org/10.1016/0378-4363(80)90194-1· OSTI ID:5454909

Brandow, B H

Variational ground-state wavefunctions are presented and optimized for two model valence-fluctuation systems, based on Anderson lattice Hamiltonians in the U ..-->.. infinity limit. Although these wavefunctions are approximate, they are treated in an essentially exact manner. The )f/sup 0/, f/sup 1/; n = 1) system has an intuitively reasonable ground-state susceptibility, while the )f/sup 1/, f/sup 2/; n = 2) system is found to exhibit an insulating gap. Due to their different crystal symmetries, this gap should be realized in SmB/sub 6/ but not in SmS.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5454909
• Report Number(s): LA-UR-80-1005; CONF-800417-2; TRN: 80-010218
• Resource Relation: Journal Volume: 102; Journal Issue: 1-3; Conference: European Physicists Society and Swiss National Science Foundation conference, Zurich, Switzerland, 9 Apr 1980
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL LATTICES
GROUND STATES
MAGNETIC SUSCEPTIBILITY
SAMARIUM BORIDES
SAMARIUM SULFIDES
VARIATIONAL METHODS
WAVE FUNCTIONS
BORIDES
BORON COMPOUNDS
CHALCOGENIDES
CRYSTAL STRUCTURE
ENERGY LEVELS
FUNCTIONS
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
656000* - Condensed Matter Physics