TY - JOUR
T1 - Structural and unique magnetic properties
AU - Felner, I.
AU - Hilscher, G.
AU - Michor, H.
PY - 1996
Y1 - 1996
N2 - Tetragonal (Formula presented)(Formula presented)(Formula presented) exhibits a unique magnetic behavior and behaves differently from both (Formula presented)(Formula presented)(Formula presented) and all R(Formula presented)(Formula presented)(Formula presented) materials. Magnetic-susceptibility study reveals two anomalies at 23 and 55 K which are sensitive to oxygen concentration, but no specific heat anomaly was observed at either temperature. Mössbauer studies reveal two inequivalent iron sites, which order antiferromagnetically at ≊230 K, in contrast to 670 K in R(Formula presented)(Formula presented)(Formula presented). X-ray absorption spectra indicate that Pr is trivalent. In contrast to (Formula presented)(Formula presented)(Formula presented) [(Formula presented)(Pr)=17 K] Pr in (Formula presented)(Formula presented)(Formula presented) does not order magnetically. The anomalies at 23 and 55 K are probably related to spin reorientation of Fe moments.
AB - Tetragonal (Formula presented)(Formula presented)(Formula presented) exhibits a unique magnetic behavior and behaves differently from both (Formula presented)(Formula presented)(Formula presented) and all R(Formula presented)(Formula presented)(Formula presented) materials. Magnetic-susceptibility study reveals two anomalies at 23 and 55 K which are sensitive to oxygen concentration, but no specific heat anomaly was observed at either temperature. Mössbauer studies reveal two inequivalent iron sites, which order antiferromagnetically at ≊230 K, in contrast to 670 K in R(Formula presented)(Formula presented)(Formula presented). X-ray absorption spectra indicate that Pr is trivalent. In contrast to (Formula presented)(Formula presented)(Formula presented) [(Formula presented)(Pr)=17 K] Pr in (Formula presented)(Formula presented)(Formula presented) does not order magnetically. The anomalies at 23 and 55 K are probably related to spin reorientation of Fe moments.
UR - http://www.scopus.com/inward/record.url?scp=0001515403&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.54.11999
DO - 10.1103/PhysRevB.54.11999
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AN - SCOPUS:0001515403
SN - 1098-0121
VL - 54
SP - 11999
EP - 12002
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
ER -