Magnetic and structural properties of Ca(Fe1-xCox) 2P2 and Ca(Ni1-xCox) 2P2

Shuang Jia; Songxue Chi; J. W. Lynn; R. J. Cava

doi:10.1103/PhysRevB.81.214446

Magnetic and structural properties of Ca(Fe_1-xCox) ₂P₂ and Ca(Ni_1-xCo_x) ₂P₂

Shuang Jia, Songxue Chi, J. W. Lynn, R. J. Cava

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We report thermodynamic and crystallographic properties for Ca(Fe _1-xCox)₂P₂ and Ca(Ni_1-xCo _x)₂P₂ for 0≤x≤1 both ThCr ₂Si₂ -type solid solutions. Ca(Fe_1-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-xCo_x)₂P₂ shows more localized-electron behavior, associated with more complicated magnetic phase transitions.

Original language	English (US)
Article number	214446
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.81.214446
State	Published - Jun 28 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.81.214446

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title = "Magnetic and structural properties of Ca(Fe1-xCox) 2P2 and Ca(Ni1-xCox) 2P2",

abstract = "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.",

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year = "2010",

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T1 - Magnetic and structural properties of Ca(Fe1-xCox) 2P2 and Ca(Ni1-xCox) 2P2

AU - Jia, Shuang

AU - Chi, Songxue

AU - Lynn, J. W.

AU - Cava, R. J.

PY - 2010/6/28

Y1 - 2010/6/28

N2 - 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.

AB - 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.

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Magnetic and structural properties of Ca(Fe_1-xCox) ₂P₂ and Ca(Ni_1-xCo_x) ₂P₂

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