Published February 22, 1988
| Version v1
Journal article
Spin fluctuations and superconductivity in Ba2YCu3O/sub 6+//sub δ/
- 1. ATandT Bell Laboratories, Murray Hill, New Jersey 07974
Description
We report observation of spin-pair excitations in Ba2YCu3O/sub 6+//sub δ/, with δ in the range 0.0--0.9. The frequency of the excitations, and hence the value of the exchange constant, J = 950 cm/sup -1/, is similar to that reported recently for (nonsuperconducting) La2CuO4. The present observation of magnetic excitations in a superconducting material, and of their evolution as a function of δ, demonstrate a large influence of carrier concentration on the spin-fluctuation dynamics
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 60
- Journal Issue
- 8
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 732-735
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19049518
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; BARIUM COMPOUNDS; COPPER OXIDES; FLUCTUATIONS; SPECTROSCOPY; SPIN; SPIN WAVES; SUPERCONDUCTIVITY; VERY LOW TEMPERATURE; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC MATERIALS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS; VARIATIONS