We report thermodynamic and crystallographic properties for Ca(Fe 1-xCox)2P2 and Ca(Ni1-xCo x)2P2 for 0≤x≤1 both ThCr 2Si2 -type solid solutions. Ca(Fe1-xCox) 2P2 display an anomalous, non-Vegard's law a -axis variation. A monotonically increasing interlayer P-P bond strength is found on progressing from Fe to Co to Ni in the 3d series. Both CaFe2P 2 and CaNi2P2 evolve from Pauli paramagnetic to antiferromagnetic (CaCo2P2) with Co doping but the magnetic properties of the solid solutions are distinctly different. Ca(Ni 1-xCox)2P2 shows more localized-electron behavior, associated with more complicated magnetic phase transitions.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jun 28 2010|
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics