Published 2002
| Version v1
Miscellaneous
Critical dynamics of singlet and triplet excitations in strongly frustrated spin systems
Creators
- 1. University of New South Wales, Sydney, NSW (Australia). School of Physics
Description
Full text: New data for the two-dimensional J1-J2-model shows that the Critical points for singlet and triplet excitations near J2/J1 < 0.38 are very close together, or coincident. We propose that this is a more general result: in strongly frustrated spin systems the critical dynamics of singlet and triplet excitations are closely related. An effective field theory for such a critical point, or points, is developed, and its implications discussed. The analysis suggests the existence of gapless or almost gapless singlet excitations in the magnetically disordered phase
Additional details
Publishing Information
- Imprint Title
- 15th Biennial Congress of the Australian Institute of Physics incorporating Australian Conference of Optical Fibre Technology (ACOFT) and Australian Optical Society (AOS). Handbook and abstracts
- Imprint Pagination
- 235 p.
- Journal Page Range
- p. 216
Conference
- Title
- 15. Biennial Congress of the Australian Institute of Physics. Physics and industry working together
- Dates
- 8-11 Jul 2002
- Place
- Sydney, NSW (Australia)
INIS
- Country of Publication
- Australia
- Country of Input or Organization
- Australia
- INIS RN
- 36063588
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- COLLECTIVE EXCITATIONS; CRITICAL TEMPERATURE; FIELD THEORIES; HEISENBERG MODEL; SPIN; TRIPLETS; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- ANGULAR MOMENTUM; CRYSTAL MODELS; ENERGY-LEVEL TRANSITIONS; EXCITATION; MATHEMATICAL MODELS; MULTIPLETS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE