Relation between electrical properties and cation-anion-cation overlap in Nd(Cr{sub 1-x}Mn{sub x})O{sub 3}
Journal Article
·
· Journal of Solid State Chemistry
- Okayama Univ. (Japan)
Perovskite-type Nd(Cr{sub 1-x}Mn{sub x})O{sub 3} was stoichiometrically synthesized in the range 0{le}x{le}0.6 and has the orthorhombic GdFeO{sub 3}{sup -} type structure with space group Pnma. The average (Cr,Mn)-O distance and the effective magnetic moment ({mu}{sub eff}) indicate that the Mn{sup 3+}ion is in a high-spin state with the (d{epsilon}){sup 3}(d{gamma}){sup 1} configuration. From the results of the electrical resistivity ({rho}), Nd(Cr{sub 1-x}Mn{sub x})O{sub 3} is a semiconductor and has a maximum ionization energy ({Delta}E) at x = 0.2. Rietveld analysis indicates that each (Cr, Mn)O{sub 6} octahedron has little distortion and that the average angles for (Cr, Mn)-O(2)-(Cr, Mn) have a maximum value at x = 0.2, that is, the overlap between the cation d{epsilon} and oxygen p{pi} orbitals plays an important role in the electrical properties of Nd(Cr{sub 1-x}Mn{sub x})O{sub 3}.
- OSTI ID:
- 210087
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 118; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Spin state of cobalt ion in Nd(Cr{sub 1-x}Co{sub x})O{sub 3}
Relationship between crystal structure and electrical properties of Nd(Cr{sub 1-x}Fe{sub x})O{sub 3}
Relationship between the electrical properties and crystal structure of (La{sub 1-x}Nd{sub x})CrO{sub 3} (0 {le} x {le} 1.0)
Journal Article
·
Thu Feb 29 23:00:00 EST 1996
· Journal of Solid State Chemistry
·
OSTI ID:269881
Relationship between crystal structure and electrical properties of Nd(Cr{sub 1-x}Fe{sub x})O{sub 3}
Journal Article
·
Sun Jun 01 00:00:00 EDT 1997
· Journal of Solid State Chemistry
·
OSTI ID:589032
Relationship between the electrical properties and crystal structure of (La{sub 1-x}Nd{sub x})CrO{sub 3} (0 {le} x {le} 1.0)
Journal Article
·
Sat Dec 31 23:00:00 EST 1994
· Journal of Solid State Chemistry
·
OSTI ID:552738