Song, JH Kim, KF Jung, HJ Choi, DK Choi, WK 2024-01-21T13:40:54Z 2024-01-21T13:40:54Z 2021-09-05 2000-08 0021-4922 https://pubs.kist.re.kr/handle/201004/141214 Perovskite manganite La-Ca-Mn-O (LCMO) thin films were deposited on LaAlO3 (001) single crystal substrate by radiofrequency magnetron sputtering at room temperature. After annealing at 800-1000 degrees C in O-2 atmosphere for 1 h, sheet resistance (R) of the LCMO thin films was measured by van der Pauw method in the range of 77-300 K. The characteristic resistance-temperature curves of all the annealed films showed typical insulator to metal transition behavior of colossal magnetoresistance (CMR) materials on cooling. The sheet resistance of LCMO films changes with temperature, conforming to a function of exp(beta T) in the temperature range from 77 K to 230 K, which is applicable to an oxide thin film thermistor. English JAPAN SOC APPLIED PHYSICS MAGNETORESISTANCE La-Ca-Mn-O thin film based thermistor for measuring low temperature of 77-230 K Article 10.1143/JJAP.39.4993 1 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.39, no.8, pp.4993 - 4997 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 39 8 4993 4997 scie scopus 000089542100061 2-s2.0-0034245286 Physics, Applied Physics Article MAGNETORESISTANCE perovskite manganite Fa-Ca-Mn-O colossal magnetoresistance sheet resistance thin film thermistor