TY - JOUR
T1 - Magnetic studies of Ca1-xMxRuO3 (M=La and Sr)
AU - Felner, I.
AU - Asaf, U.
PY - 2003/9
Y1 - 2003/9
N2 - CaRuO3 is a perovskite with an orthorhombic distortion and shows the characteristics of spin-glass behavior below TC=87K. La3+ substitution for Ca2+ in Ca1-xLa xRuO3 samples, induces disorder at the Ca site (the A site) and the system becomes antiferromagnetically (AFM) ordered at T N=58 and 19K for x=0.1 and 0.5, respectively. In the Ca 1-xSrxRuO3 system, the Ca0.8Sr 0.2RuO3 sample is canted-AFM ordered at 107K. The compounds with higher Sr concentration display ferromagnetic behavior and the saturation moment increases with increasing Sr content. Huge magnetic hysteresis loops are obtained at low temperatures. The coercive field (H C) decreases with increasing Sr content. For pure SrRuO3 HC=2.4kOe (at 5K) remains practically unchanged up to 50K, shows a peak at 90K and then decreases sharply up to TC=165K. On the other hand, HC for x=0.4 and 0.6 (9.5 and 9kOe at 5K) decreases sharply with increasing temperature and than increases again with a peak at 95 and 115K, respectively.
AB - CaRuO3 is a perovskite with an orthorhombic distortion and shows the characteristics of spin-glass behavior below TC=87K. La3+ substitution for Ca2+ in Ca1-xLa xRuO3 samples, induces disorder at the Ca site (the A site) and the system becomes antiferromagnetically (AFM) ordered at T N=58 and 19K for x=0.1 and 0.5, respectively. In the Ca 1-xSrxRuO3 system, the Ca0.8Sr 0.2RuO3 sample is canted-AFM ordered at 107K. The compounds with higher Sr concentration display ferromagnetic behavior and the saturation moment increases with increasing Sr content. Huge magnetic hysteresis loops are obtained at low temperatures. The coercive field (H C) decreases with increasing Sr content. For pure SrRuO3 HC=2.4kOe (at 5K) remains practically unchanged up to 50K, shows a peak at 90K and then decreases sharply up to TC=165K. On the other hand, HC for x=0.4 and 0.6 (9.5 and 9kOe at 5K) decreases sharply with increasing temperature and than increases again with a peak at 95 and 115K, respectively.
KW - Coercive field
KW - Magnetic transitions
KW - Perovskite-type oxide
KW - Spin glass
KW - Spin reorientation
UR - http://www.scopus.com/inward/record.url?scp=0041326322&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(03)00421-6
DO - 10.1016/S0921-4526(03)00421-6
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0041326322
SN - 0921-4526
VL - 337
SP - 310
EP - 317
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-4
ER -