TY - JOUR
T1 - Magnetic ordering and dense Kondo behavior in EuFe2P2
AU - Feng, Chunmu
AU - Ren, Zhi
AU - Xu, Shenggao
AU - Jiang, Shuai
AU - Xu, Zhu'An
AU - Cao, Guanghan
AU - Nowik, I.
AU - Felner, I.
AU - Matsubayashi, Kazuyuki
AU - Uwatoko, Yoshiya
PY - 2010/9/15
Y1 - 2010/9/15
N2 - Ternary iron phosphide EuFe2P2 with ThCr 2Si2 -type structure has been systematically studied by the measurements of crystal structure, magnetization, Mössbauer effect, transport properties, and specific heat. The structural refinement result confirms no direct P-P covalent bonding. The Mössbauer spectra indicate no magnetic moment for the Fe atoms and that the Eu ions are divalent in the whole temperatures. The Eu2+ spins order ferromagnetically at TC =29 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 the TC gradually but suppresses the THM rapidly. (Magneto)resistivity data indicate characteristic dense Kondo behavior above the Curie temperature. The result is discussed in terms of the interplay between intersite Ruderman-Kittel-Kasuya-Yosida and intrasite Kondo interactions.
AB - Ternary iron phosphide EuFe2P2 with ThCr 2Si2 -type structure has been systematically studied by the measurements of crystal structure, magnetization, Mössbauer effect, transport properties, and specific heat. The structural refinement result confirms no direct P-P covalent bonding. The Mössbauer spectra indicate no magnetic moment for the Fe atoms and that the Eu ions are divalent in the whole temperatures. The Eu2+ spins order ferromagnetically at TC =29 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 the TC gradually but suppresses the THM rapidly. (Magneto)resistivity data indicate characteristic dense Kondo behavior above the Curie temperature. The result is discussed in terms of the interplay between intersite Ruderman-Kittel-Kasuya-Yosida and intrasite Kondo interactions.
UR - http://www.scopus.com/inward/record.url?scp=77957580482&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.094426
DO - 10.1103/PhysRevB.82.094426
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AN - SCOPUS:77957580482
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
M1 - 094426
ER -