Published November 1, 1991
| Version v1
Journal article
Magnetic dilution study in La2CuO4: Comparison with other two-dimensional magnets
- 1. AT ampersand T Bell Laboratories, Murray Hill, New Jersey (USA)
- 2. Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
Description
The reduction of the Neel point TN of La2CuO4 by substitution of nonmagnetic Mg or Zn for Cu has been studied, with particular emphasis on keeping the oxygen content unaffected. In the low-concentration range (<10%), the rate of TN suppression is found to be the same as in other two-dimensional (2D) Heisenberg magnets such as K2CuF4 (S=1/2) and K2MnF4 (S=5/2). While this suppression rate is larger than for 2D Ising magnets, it is much smaller than the rapid TN reduction upon introduction of holes in La2CuO4 through oxygen excess or heterovalent substitution for La. Thus, no unusual quantum-magnetic dilution effects are observed in the S=1/2 La2CuO4 magnet
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 44
- Journal Issue
- 17
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 9739-9742
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23021556
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- COPPER OXIDES; DILUTION; HEISENBERG MODEL; HOLES; ISING MODEL; LANTHANUM OXIDES; MAGNESIUM ADDITIONS; MAGNETIC PROPERTIES; NEEL TEMPERATURE; ZINC ADDITIONS
- Descriptors DEC
- CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL MODELS; LANTHANUM COMPOUNDS; MATHEMATICAL MODELS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE