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Magnetic ordering and dense Kondo behaviour in EuFe$ {2}$P$ {2}$ by Feng, Chunmu; Ren, Zhi; Xu, Shenggao; Xu, Zhu'an; Cao, Guanghan; Nowik, I.; Felner, I.; Matsubayashi, Kazuyuki; Uwatoko, Yoshiya is a scholarly article available to read on EtoBox.

What is Magnetic ordering and dense Kondo behaviour in EuFe$ {2}$P$ {2}$ about?

Ternary iron phosphide EuFe$_2$P$_2$ with ThCr$_2$Si$_2$-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 Eu$^{2+}$ spins order ferromagnetically at $T_C$=29.5 K, followed by a possible helimagnetic ordering below $T_{HM}$=26 K, where the Eu$^{2+}$ moments tilt a little from the c-axis. External magnetic field increases $T_C$ gradually, but suppresses $T_{HM}$ 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.

Author

Feng, Chunmu; Ren, Zhi; Xu, Shenggao; Xu, Zhu'an; Cao, Guanghan; Nowik, I.; Felner, I.; Matsubayashi, Kazuyuki; Uwatoko, Yoshiya

Published

2010

Language

EN