Electronic Resource
Springer
The European physical journal
16 (2000), S. 7-10
ISSN:
1434-6036
Keywords:
PACS. 75.30.Et Exchange and superexchange interactions - 75.10.Jm Quantized spin models - 75.50.Ee Antiferromagnetics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: One-dimensional spin 1 systems may have a rich phase diagram including Haldane gap and dimerized phases if the usually very small biquadratic exchange becomes significant. We show that this unlikely condition may be fulfilled in electron systems with quasi-degenerate orbitals. This mechanism may have been experimentally realized in the spin 1 chain LiVGe2O6. The implications for the exploration of the physics and quantum chemistry of spin 1 chains are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510070242
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