Effects of cationic substitution on the electronic and magnetic properties of manganocuprate with a layered Eu3Ba2Mn2Cu2O12 structure
Creators
- 1. Osaka National Research Inst., Ikeda, Osaka (Japan)
- 2. Osaka Electro Communication Univ., Negagawa, Osaka (Japan)
Description
Systematic studies on the effect of substitutions on the layered manganocuprate Eu3Ba2Mn2Cu2O12 have been conducted. To introduce holes, the authors have made substitutions of Ca for Eu and/or Sc for Mn, (Eu3-xCax)Ba2(Mn2-yScy)Cu2O12. Single-phase compounds are obtained over a fairly wide range of x and y values for x ≤ 0.7 (y = 0), x ≤ 0.5 (y = 0.5), and x ≤ 0.1 (y = 1.0). The doped holes are received predominantly at the Mn-O site and change the charge of Mn from 3+ to 4+, and no superconductivity has been obtained for any sample. The electronic ground state of (Eu3-xCax)Ba2(Mn2-yScy)Cu2O12 is discussed by comparing with that of the three-dimensional perovskite La1-xCaxMnO3 and K2NiF4-type La1-xSr1+xMnO4 compounds. The substitution of Sr for Ba gives rise to a different crystal structure, the Sr3Ti2O7 structure
Additional details
Publishing Information
- Journal Title
- Journal of Solid State Chemistry
- Journal Volume
- 141
- Journal Issue
- 2
- Journal Page Range
- p. 546-553
- ISSN
- 0022-4596
- CODEN
- JSSCBI
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 30034975
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; CALCIUM; COPPER OXIDES; DOPED MATERIALS; ELECTRONIC STRUCTURE; EUROPIUM OXIDES; GROUND STATES; HOLES; MAGNETIC PROPERTIES; MANGANESE OXIDES; SCANDIUM
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALKALINE EARTH METALS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELEMENTS; ENERGY LEVELS; EUROPIUM COMPOUNDS; MANGANESE COMPOUNDS; MATERIALS; METALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS