Scaling behavior of the generalized susceptibility in La2-xSrxCuO4+y
Abstract
We have measured the static and dynamic spin fluctuations in a crystal of La2-xSrxCuO4+y in the spin-glass doping regime. The static spin correlations are well described by a simple model in which the inverse correlation length κ(x,T)=κ(x,0)+κ(0,T). The dynamic spin fluctuations exhibit a simple scaling behavior in ω/T for temperatures 10 K<=T<=500 K for the measured energies 4.5<=ω<=12 meV.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 1991
- DOI:
- 10.1103/PhysRevLett.67.1930
- Bibcode:
- 1991PhRvL..67.1930K
- Keywords:
-
- High Temperature Superconductors;
- Mixed Oxides;
- Phase Transformations;
- Single Crystals;
- Spin Dynamics;
- Antiferromagnetism;
- Copper Oxides;
- Lanthanum Oxides;
- Lattice Parameters;
- Spin-Lattice Relaxation;
- Strontium Compounds;
- Solid-State Physics;
- 75.50.Ee;
- 74.70.Hk;
- 74.70.Jm;
- 75.40.Cx;
- Antiferromagnetics;
- Static properties