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Title: Interplay of local structure, charge, and spin in bilayered manganese perovskites

Journal Article · · Physical Review B
 [1];  [2];  [1];  [1];  [3]
  1. AGH Univ. of Science and Technology, Krakow (Poland). Faculty of Physics and Applied Computer Science. Dept. of Solid State Physics
  2. AGH Univ. of Science and Technology, Krakow (Poland). Academic Centre for Materials and Nanotechnology
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
+ Show Author Affiliations

Chemical doping is a reliable method of modification of the electronic properties of transition metal compounds. In manganese perovskites, it leads to charge transfer and peculiar ordering phenomena. However, depending on the interplay of the local crystal structure and electronic properties, synthesis of stable compounds in the entire doping range is often impossible. In this paper, we show results of high-energy resolution x-ray absorption and emission spectroscopies on a $${\mathrm{La}}_{2{-}2x}{\mathrm{Sr}}_{1+2x}{\mathrm{Mn}}_{2}{\mathrm{O}}_{7}$$ family of bilayered manganites in a broad doping range $$(0.5{\le}x{\le}1)$$. We established a relation between local Mn charge and Mn-O distances as a function of doping. Finally, based on a comparison of such relation with other manganites, we suggest why stable structures cannot be realized for certain doping levels of bilayered compounds.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); AGH Univ. of Science and Technology, Krakow (Poland)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Ministry of Science and Higher Education (Poland); National Science Centre of Poland
Grant/Contract Number:
AC02-06CH11357; 11.11.220.01/6; DIR/WK/2016/19; 2014/14/E/ST3/00026
OSTI ID:
1433887
Alternate ID(s):
OSTI ID: 1429939
Journal Information:
Physical Review B, Vol. 97, Issue 11; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Figures / Tables (7)

3, b) single-layer La1−xSr1+xMnO4 and c) bilayered La2−2xSr1+2xMn2O7 with corresponding arrangements of MnO6 octahedra. Different colors of Mn-O bonds indicate different lengths." data-ostiid="1433887">
FIG. 1.(p. 2)figure FIG. 1.
FIG. 2.(p. 2)figure FIG. 2.
FIG. 3.(p. 3)figure FIG. 3.
FIG. 4.(p. 4)figure FIG. 4.
FIG. 5.(p. 5)figure FIG. 5.
FIG. 6.(p. 6)figure FIG. 6.
FIG. 7.(p. 7)figure FIG. 7.

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