TY - JOUR
T1 - Superconductivity and magnetic order in CaLaBaCu3Oz
AU - Bauminger, E. R.
AU - Edery, D.
AU - Felner, I.
AU - Nowik, I.
PY - 1990/7
Y1 - 1990/7
N2 - X-ray diffraction, thermogravimetric analysis, magnetization and Mossbauer studies of a57Fe probe, in CaLaBa(Cu1-xFex)3Oz with z=7, 6.5 and x=0.00 to 0.05 have been performed. For z=7, Tc drops from 74 K for x=0.00 to 35 K for x=0.05. In CaLaBa(Cu1-xFex)3Oz with z=7, 10% of the iron is magnetically ordered with Heff=530 K kOe and TN=400 K, even though the sample is superconducting. In the oxygen poor, non-superconducting samples (z=6.5) 20% of the iron is magnetically ordered with Heff=340 kOe and TN=340 K. Since the iron reflects the magnetic order of the Cu(2) ions, this may show that perhaps two inequivalent Cu(2) sites exist in CaLaBa(Cu1-xFex)3O7, ones of which is magnetically ordered. The experimental observations may be interpreted in terms of the special crystal structure which can allow superconductivity and magnetism to coexist, probably in separate Cu(2) planes.
AB - X-ray diffraction, thermogravimetric analysis, magnetization and Mossbauer studies of a57Fe probe, in CaLaBa(Cu1-xFex)3Oz with z=7, 6.5 and x=0.00 to 0.05 have been performed. For z=7, Tc drops from 74 K for x=0.00 to 35 K for x=0.05. In CaLaBa(Cu1-xFex)3Oz with z=7, 10% of the iron is magnetically ordered with Heff=530 K kOe and TN=400 K, even though the sample is superconducting. In the oxygen poor, non-superconducting samples (z=6.5) 20% of the iron is magnetically ordered with Heff=340 kOe and TN=340 K. Since the iron reflects the magnetic order of the Cu(2) ions, this may show that perhaps two inequivalent Cu(2) sites exist in CaLaBa(Cu1-xFex)3O7, ones of which is magnetically ordered. The experimental observations may be interpreted in terms of the special crystal structure which can allow superconductivity and magnetism to coexist, probably in separate Cu(2) planes.
UR - http://www.scopus.com/inward/record.url?scp=34249958982&partnerID=8YFLogxK
U2 - 10.1007/BF02397148
DO - 10.1007/BF02397148
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:34249958982
SN - 0304-3843
VL - 55
SP - 1195
EP - 1198
JO - Hyperfine Interactions
JF - Hyperfine Interactions
IS - 1-4
ER -