The method for the growth of large Ln2Cu2O5 single crystals is developed. No ESR signals is found in all studied samples except Lu2Cu2O5. Temperature dependences of Cu2+ ESR spectra of Lu2Cu2O5 compounds were studied for both policrystalline and single crystal samples. The significant anisotropy of ESR spectra of Ln2Cu2O5 single crystal was found. The g-factor main values were determined. The sharp broadening and disappearance of the ESR signals at temperatures below 20K seems to be caused by the enhancement of spin fluctuations in the vicinity of the antiferromagnetic transition in these compounds. The effective Cu2+ interaction with rare earth ions magnetic moments in Ln2Cu2O5 compounds is supposed.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering