TY - JOUR
T1 - New advanced magnetic La1.2(Sr1.8-xCax)Mn2O7 compounds with colossal magnetoresistance
AU - Liu, R. S.
AU - Shen, C. H.
AU - Hu, S. F.
AU - Lin, J. G.
AU - Huang, C. Y.
N1 - Funding Information:
This research is financially supported by the National Science Council of the Republic of China under grant numbers NSC 88-2113-M-002-029 and NSC 88-2112-M-002-029.
PY - 2000/2
Y1 - 2000/2
N2 - We present electrical, magnetic and crystal structure for a series of La1.2(Sr1.8-xCax)Mn2O7 (x = 0-0.8) manganites. The sample of x = 0.4 exhibits the highest magnetoresistance (MR) ratio [ρ(H)-ρ(O)/ρ(H)]×100% of -108% at the temperature of 102 K. The Curie temperature (TC) decreases from 135 K for x = 0-102 K for x = 0.4. The hysteresis phenomenon was observed when the temperatures were lower than the magnetic transition temperature. The static strain within the compound for x = 0.4 has also been found by high-resolution transmission electron microscopic techniques.
AB - We present electrical, magnetic and crystal structure for a series of La1.2(Sr1.8-xCax)Mn2O7 (x = 0-0.8) manganites. The sample of x = 0.4 exhibits the highest magnetoresistance (MR) ratio [ρ(H)-ρ(O)/ρ(H)]×100% of -108% at the temperature of 102 K. The Curie temperature (TC) decreases from 135 K for x = 0-102 K for x = 0.4. The hysteresis phenomenon was observed when the temperatures were lower than the magnetic transition temperature. The static strain within the compound for x = 0.4 has also been found by high-resolution transmission electron microscopic techniques.
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U2 - 10.1016/S0304-8853(99)00660-5
DO - 10.1016/S0304-8853(99)00660-5
M3 - Conference article
AN - SCOPUS:0034135359
SN - 0304-8853
VL - 209
SP - 113
EP - 115
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-3
T2 - Proceedings of the 1999 International Symposium on Advanced Magnetic Technologies (ISAMT'99)
Y2 - 24 May 1999 through 25 May 1999
ER -