TY - JOUR
T1 - Magnetic properties and Moessbauer studies of Bi2Sr3Fe2O9+δ, isostructural with Bi-2122 superconductors
AU - Hechel, D.
AU - Felner, I.
PY - 1999/4
Y1 - 1999/4
N2 - We have investigated Bi2Sr3Fe2O9+δ materials by complementary experimental techniques. The materials are derived from the superconducting Bi2Sr2CaCu2O8 (Bi-2122) by replacing all Cu by Fe and Ca atoms by Sr. The materials studied are not superconducting, but rather magnetically ordered. Moessbauer spectroscopy (MS) and magnetic-susceptibility studies reveal, that the magnetic ordering temperature (TN) is very sensitive to oxygen concentration. TN = 100(5) K (determined by MS) for the oxygen-rich sample, is shifted towards 610 K when oxygen is depleted. Magnetic susceptibility data yield somewhat lower TN values (80 and 520 K, respectively).
AB - We have investigated Bi2Sr3Fe2O9+δ materials by complementary experimental techniques. The materials are derived from the superconducting Bi2Sr2CaCu2O8 (Bi-2122) by replacing all Cu by Fe and Ca atoms by Sr. The materials studied are not superconducting, but rather magnetically ordered. Moessbauer spectroscopy (MS) and magnetic-susceptibility studies reveal, that the magnetic ordering temperature (TN) is very sensitive to oxygen concentration. TN = 100(5) K (determined by MS) for the oxygen-rich sample, is shifted towards 610 K when oxygen is depleted. Magnetic susceptibility data yield somewhat lower TN values (80 and 520 K, respectively).
UR - http://www.scopus.com/inward/record.url?scp=0032624105&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(98)01155-7
DO - 10.1016/S0921-4526(98)01155-7
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0032624105
SN - 0921-4526
VL - 262
SP - 410
EP - 414
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 3-4
ER -