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Effect of oxygen annealing on single crystals of YBa2 (Cu1−xFex)3O7−y: Mossbauer spectroscopy

✍ Scribed by I.V. Zubov; A.S. Ilyushin; R.N. Kuz'min; V.S. Moisa; A.A. Novakova; A.A. Bush

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
111 KB
Volume
162-164
Category
Article
ISSN
0921-4534

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✦ Synopsis

Single crystals (Yo.33Bao.67)s(Cuo.94Feo.o4Alo.o2)z.ssOT-y were studied by means of Mossbauer spectroscopy before and after annealing in oxygen. One found the evidence of Fe substitution both in Cul and Cu2 positions. The main component of EFG tensor in Cu2 position Uzz=-5.8(1)xl021V/m 2 .

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Particularities of the structure and oxy
Particularities of the structure and oxygen stoichiometry in YBa2(Cu1- xFex)3O7−y
✍ I.E. Graboy; A.R. Kaul; Yu.D. Tretyakov; I.V. Zubov; I.G. Muttik 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 125 KB

The oxygen stoichiometry, unit cell parameters and resistivity of YBa2(CUl\_xFex)307\_y ix= 0-0.08) samples were studied. The model of oxygen rearrangement expTainFng the observed effects of doping by Fe was proposed.