The Low Temperature Study of Ln[Fe(CN)6]· xH2O Rare-Earth Ferricyanides, Ln = Pr, La
S. Maťaša, b, Z. Mitróováb, K. Kiefera, H. Rylla and K. Prokeša
aHelmholtz-Center Berlin, Hahn Meitner Platz 1, D-14109 Berlin, Germany
bInstitute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, SK-040 01 Košice, Slovakia
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We present magnetic and structural properties of Ln[Fe(CN)6]· xH2O, Ln = Pr, La single crystals investigated by means of elastic neutron diffraction and heat capacity down to 0.03 K and susceptibility and magnetization measurements. The susceptibility data were taken on the commercial SQUID magnetometer (Quantum Design) in the range between 2 K and 30 K and in fields up to 5 T. Our low temperature neutron diffraction data taken in a zero field rules out some of antiferromagnetic models suggested in the literature.
DOI: 10.12693/APhysPolA.118.962
PACS numbers: 28.20.Cz, 25.40.Dn, 75.30.-m