Tambunan, Octolia T. Parwanta, Kadek J. Acharya, Susant K. Lee, Bo Wha Jung, Chang Uk Kim, Yeon Soo Park, Bae Ho Jeong, Huiseong Park, Ji-Yong Cho, Myung Rae Park, Yun Daniel Choi, Woo Seok Kim, Dong-Wook Jin, Hyunwoo Lee, Suyoun Song, Seul Ji Kang, Sung-Jin Kim, Miyoung Hwang, Cheol Seong 2024-01-20T09:03:39Z 2024-01-20T09:03:39Z 2021-09-02 2014-08-11 0003-6951 https://pubs.kist.re.kr/handle/201004/126475 We observed bipolar switching behavior from an epitaxial strontium cobaltite film grown on a SrTiO3 (001) substrate. The crystal structure of strontium cobaltite has been known to undergo topotactic phase transformation between two distinct phases: insulating brownmillerite (SrCoO2.5) and conducting perovskite (SrCoO3-delta) depending on the oxygen content. The current-voltage characteristics of the strontium cobaltite film showed that it could have a reversible insulator-tometal transition triggered by electrical bias voltage. We propose that the resistance switching in the SrCoOx thin film could be related to the topotactic phase transformation and the peculiar structure of SrCoO2.5. (c) 2014 AIP Publishing LLC. English AMER INST PHYSICS BROWNMILLERITE SRCOO2.5 PHASE-TRANSFORMATION REDOX REACTIONS Resistance switching in epitaxial SrCoOx thin films Article 10.1063/1.4893323 1 APPLIED PHYSICS LETTERS, v.105, no.6 APPLIED PHYSICS LETTERS 105 6 scie scopus 000341188700088 2-s2.0-84940297727 Physics, Applied Physics Article BROWNMILLERITE SRCOO2.5 PHASE-TRANSFORMATION REDOX REACTIONS