Ternary iron phosphide EuFe2P2 with ThCr2Si2-type structure has been systematically studied by the measurements of crystal structure, magnetization, M\"{o}ssbauer effect, transport properties and specific heat. The structural refinement result confirms no direct P-P covalent bonding. The M\"{o}ssbauer spectra indicate no magnetic moment for the Fe atoms and, that the Eu ions are divalent in the whole temperatures, carrying local moments of S=7/2. The Eu2+ spins order ferromagnetically at TC=29.5 K, followed by a possible helimagnetic ordering below THM=26 K, where the Eu2+ moments tilt a little from the c-axis. External magnetic field increases TC gradually, but suppresses THM rapidly. (Magneto)resistivity data indicate characteristic dense Kondo behaviour above the Curie temperature. The result is discussed in terms of the interplay between intersite RKKY and intrasite Kondo interactions.
@article{arxiv.1005.0516,
title = {Magnetic ordering and dense Kondo behaviour in EuFe$_{2}$P$_{2}$},
author = {Chunmu Feng and Zhi Ren and Shenggao Xu and Zhu'an Xu and Guanghan Cao and I. Nowik and I. Felner and Kazuyuki Matsubayashi and Yoshiya Uwatoko},
journal= {arXiv preprint arXiv:1005.0516},
year = {2010}
}