Matches in SemOpenAlex for { <https://semopenalex.org/work/W2616334849> ?p ?o ?g. }
- W2616334849 abstract "Finite-size (d = 5.4–112 nm) and surface effects on the structural, optical, and magnetic properties of ferrimagnetic inverse-spinel MnCo2O4 are reported. For d ≥ 87 nm, partial tetragonal distortion of the inverse spinel-lattice was observed. The Curie temperature TC of MnCo2O4 nanostructures, as determined by dc-magnetic susceptibility (χ) measurements, follows a finite-size scaling relation TC(d) = TC(∞)[1−(ξ0/d)λ] with a shift exponent λ = 0.75 ± 0.15 and microscopic correlation length ξ0 = 1.4 ± 0.3 nm, which is consistent with the mean field theory. For T > TC, χ(T) fits Néel's expression for the two-sublattice model with antiferromagnetic molecular field (exchange) constants NBB ∼ 85.16 (JBB ∼ 2.94 × 10−22 J), NAB ∼ 110.96 (JAB ∼ 1.91 × 10−22 J), and NAA ∼ 43.8 (JAA ∼ 1.13 × 10−22 J) and asymptotic Curie temperature Ta ∼ 717.63 K. The optical energy bandgap Eg, evaluated from the Kubelka-Munk function ([F(R∞)ℏω]2 = C2(ℏω - Eg)) is blueshifted to 2.4 eV (d ∼ 5.4 nm) from 1.73 eV (d ∼ 112 nm) due to the quantum confinement and non-stoichiometry. The role of tetragonal distortion and grain-size-effects in the intensity of crystal field transitions and variation in the magnetic ordering are further discussed and compared with Co3O4 nanostructures." @default.
- W2616334849 created "2017-05-26" @default.
- W2616334849 creator A5019346311 @default.
- W2616334849 creator A5033342971 @default.
- W2616334849 creator A5053246943 @default.
- W2616334849 creator A5064247575 @default.
- W2616334849 creator A5069248594 @default.
- W2616334849 creator A5077081923 @default.
- W2616334849 date "2017-05-19" @default.
- W2616334849 modified "2023-10-14" @default.
- W2616334849 title "Size-dependent structural, magnetic, and optical properties of MnCo2O4 nanocrystallites" @default.
- W2616334849 cites W1531701724 @default.
- W2616334849 cites W1677587065 @default.
- W2616334849 cites W1917287900 @default.
- W2616334849 cites W1963974487 @default.
- W2616334849 cites W1968295638 @default.
- W2616334849 cites W1968766415 @default.
- W2616334849 cites W1968823981 @default.
- W2616334849 cites W1974008346 @default.
- W2616334849 cites W1974919710 @default.
- W2616334849 cites W1985668052 @default.
- W2616334849 cites W1985769412 @default.
- W2616334849 cites W1986324614 @default.
- W2616334849 cites W1987410121 @default.
- W2616334849 cites W1987629036 @default.
- W2616334849 cites W1988109180 @default.
- W2616334849 cites W1989520001 @default.
- W2616334849 cites W1991514987 @default.
- W2616334849 cites W1991772903 @default.
- W2616334849 cites W1992644761 @default.
- W2616334849 cites W1994860648 @default.
- W2616334849 cites W1995166885 @default.
- W2616334849 cites W1995793368 @default.
- W2616334849 cites W1996824838 @default.
- W2616334849 cites W1998561593 @default.
- W2616334849 cites W2000134339 @default.
- W2616334849 cites W2000695983 @default.
- W2616334849 cites W2006703229 @default.
- W2616334849 cites W2007278512 @default.
- W2616334849 cites W2009137096 @default.
- W2616334849 cites W2009301956 @default.
- W2616334849 cites W2016135978 @default.
- W2616334849 cites W2016488536 @default.
- W2616334849 cites W2017400048 @default.
- W2616334849 cites W2020247269 @default.
- W2616334849 cites W2022810388 @default.
- W2616334849 cites W2024389854 @default.
- W2616334849 cites W2032367804 @default.
- W2616334849 cites W2033379903 @default.
- W2616334849 cites W2033559527 @default.
- W2616334849 cites W2035696584 @default.
- W2616334849 cites W2037167870 @default.
- W2616334849 cites W2043451075 @default.
- W2616334849 cites W2044651211 @default.
- W2616334849 cites W2049878442 @default.
- W2616334849 cites W2050301140 @default.
- W2616334849 cites W2054284995 @default.
- W2616334849 cites W2054690009 @default.
- W2616334849 cites W2054870461 @default.
- W2616334849 cites W2059211349 @default.
- W2616334849 cites W2062365159 @default.
- W2616334849 cites W2063044113 @default.
- W2616334849 cites W2066601924 @default.
- W2616334849 cites W2066741176 @default.
- W2616334849 cites W2069632661 @default.
- W2616334849 cites W2072064890 @default.
- W2616334849 cites W2072299070 @default.
- W2616334849 cites W2073067854 @default.
- W2616334849 cites W2076118864 @default.
- W2616334849 cites W2079023574 @default.
- W2616334849 cites W2080602749 @default.
- W2616334849 cites W2080999650 @default.
- W2616334849 cites W2081172530 @default.
- W2616334849 cites W2082071958 @default.
- W2616334849 cites W2082434370 @default.
- W2616334849 cites W2082886109 @default.
- W2616334849 cites W2083045836 @default.
- W2616334849 cites W2083788575 @default.
- W2616334849 cites W2084740090 @default.
- W2616334849 cites W2085545918 @default.
- W2616334849 cites W2086671013 @default.
- W2616334849 cites W2091252421 @default.
- W2616334849 cites W2091492846 @default.
- W2616334849 cites W2092622635 @default.
- W2616334849 cites W2092848962 @default.
- W2616334849 cites W2099175241 @default.
- W2616334849 cites W2100141567 @default.
- W2616334849 cites W2110703655 @default.
- W2616334849 cites W2114378996 @default.
- W2616334849 cites W2128574204 @default.
- W2616334849 cites W2131242210 @default.
- W2616334849 cites W2131940008 @default.
- W2616334849 cites W2132262629 @default.
- W2616334849 cites W2138666378 @default.
- W2616334849 cites W2154931051 @default.
- W2616334849 cites W2162793756 @default.
- W2616334849 cites W2172104556 @default.
- W2616334849 cites W2213957368 @default.
- W2616334849 cites W2224607070 @default.
- W2616334849 cites W2264510400 @default.