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Title

Synthesis, structure and magnetic susceptibility of KCrP2O7, a potential antiferromagnetic magnetoelectric

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Published in Ferroelectrics. 1997, vol. 204, no. 1, p. 35-44
Abstract During the synthesis by flux evapn. in KCl at 930° of KCrIIPO4, oxidn. of Cr(II) was obsd., leading to the formation of KCrIIIP2O7. The crystal lattice of KCrP2O7 is monoclinic, space group P21/c with a = 7.3470(7), b = 9.9090(10), c =8.1730(8)Å, β = 106.806(11)°, Z = 4 and V = 569.59(10) Å3, F(000) = 516, 1981 obsd. reflections with I > 3σ(I), R = 0.023, Rw = 0.026. The magnetic susceptibility was measured between 3.6-300 K at different magnetic field strengths. The neg. value of the Curie-Weiss temp. and the behavior of magnetic susceptibility indicate an antiferromagnetic spin order in this compd. with a Neel temp. TN = 8.5 K.
Keywords Potassium pyrophosphate of chrmniumPotassium orthophosphate of chromiumCrystal structureCrystal growthMagnetic propertiesMagnetoelectric effect
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Project FNS: 1995
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GENTIL, Sandrine et al. Synthesis, structure and magnetic susceptibility of KCrP2O7, a potential antiferromagnetic magnetoelectric. In: Ferroelectrics, 1997, vol. 204, n° 1, p. 35-44. https://archive-ouverte.unige.ch/unige:31138

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Deposited on : 2013-11-19

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