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Mössbauer study of super and semi-conducting samples of57Fe-doped (La2−ySry) CuO4−δ
- Source :
- Hyperfine Interactions; June 1989, Vol. 50 Issue: 1-4 p599-605, 7p
- Publication Year :
- 1989
-
Abstract
- Abstract: From Mssbauer and resistivity measurements on (La<subscript>2−y </subscript>Sr<subscript> y </subscript>) CuO<subscript>4−δ</subscript> samples doped with 5/1000<superscript>57</superscript>Fe, three successive phases are observed depending on they value: a semiconducting antiferromagnetic phase fory<0.02; a semiconducting phase with two-dimensional spin-glass Cu magnetic order for 0.02<y>0.07. The Mssbauer data show that a Cu spin-glass order survives in the superconducting phase up toy∼0.15. Fory>0.15, a different type of magnetic ordering is observed on<superscript>57</superscript>Fe, which is clearly governed by the iron impurities interacting through the Cu sublattice. </y>
Details
- Language :
- English
- ISSN :
- 03043843 and 15729540
- Volume :
- 50
- Issue :
- 1-4
- Database :
- Supplemental Index
- Journal :
- Hyperfine Interactions
- Publication Type :
- Periodical
- Accession number :
- ejs17174143
- Full Text :
- https://doi.org/10.1007/BF02407697