TY - JOUR
T1 - Magnetic order and superconductivity in Y1-xPrxBa2Cu3O7
AU - Felner, I.
AU - Yaron, U.
AU - Nowik, I.
AU - Bauminger, E. R.
AU - Wolfus, Y.
AU - Yacoby, E. R.
AU - Hilscher, G.
AU - Pillmayr, N.
PY - 1989
Y1 - 1989
N2 - The system Y1-xPrxBa2Cu3-yFeyOz, with x=0 to 1, y=0 and 0.3, and z=6 and 7, has been studied by ac and dc magnetometry to determine the superconducting phase transition temperature, Tc, by Fe57 Mössbauer spectroscopy to determine the antiferromagnetic phase transition temperature of the Cu(2) site, TN, and by specific-heat measurements to determine and the antiferromagnetic ordering temperature of the Pr site, Tn. Tc (x,z=7), TN (x,z=6,7), and Tn (x,z=7) were obtained for x values of 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0. For z=6, TN changes very little with x [TN(0,6)=415 K and TN(1,6)=350 K], but for z=7, TN changes sharply with x [TN(1,7)=325 K, TN(0.6,7)=230 K, and TN(0.4,7)35 K]. There is no conclusive evidence for overlap of superconductivity and antiferromagnetism. Tn also decreases strongly with decreasing x, Tn(1,7)=17 K, while Tn(0.4,7)2.5 K. The specific-heat measurements show large linear temperature terms. The slope increases strongly with x and with the introduction of the Fe probe.
AB - The system Y1-xPrxBa2Cu3-yFeyOz, with x=0 to 1, y=0 and 0.3, and z=6 and 7, has been studied by ac and dc magnetometry to determine the superconducting phase transition temperature, Tc, by Fe57 Mössbauer spectroscopy to determine the antiferromagnetic phase transition temperature of the Cu(2) site, TN, and by specific-heat measurements to determine and the antiferromagnetic ordering temperature of the Pr site, Tn. Tc (x,z=7), TN (x,z=6,7), and Tn (x,z=7) were obtained for x values of 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0. For z=6, TN changes very little with x [TN(0,6)=415 K and TN(1,6)=350 K], but for z=7, TN changes sharply with x [TN(1,7)=325 K, TN(0.6,7)=230 K, and TN(0.4,7)35 K]. There is no conclusive evidence for overlap of superconductivity and antiferromagnetism. Tn also decreases strongly with decreasing x, Tn(1,7)=17 K, while Tn(0.4,7)2.5 K. The specific-heat measurements show large linear temperature terms. The slope increases strongly with x and with the introduction of the Fe probe.
UR - http://www.scopus.com/inward/record.url?scp=0000077819&partnerID=8YFLogxK
U2 - 10.1103/physrevb.40.6739
DO - 10.1103/physrevb.40.6739
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AN - SCOPUS:0000077819
SN - 0163-1829
VL - 40
SP - 6739
EP - 6744
JO - Physical Review B
JF - Physical Review B
IS - 10
ER -