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초록
Resistance as a function of temperature showed that the metal-insulator transition temperatures of as-grown and annealed Ag-doped La0.67Ca0.33MnO3 thin films were 235 and 300 K, respectively, and that the metal-insulator transition ranges of these films were relatively narrow, indicative of a sharp phase transition. The temperature coefficient of resistance was as high as 8% at 276 K. The magnetoresistance ratio of the annealed Ag-doped film under a magnetic field of 5 T was approximately 55% at 285 K.
키워드
Ag-doped La0.67Ga0.33MnO3; thermal annealing; electrical property; magnetic property; magnetoresistance ratio; ROOM-TEMPERATURE; MAGNETORESISTANCE; RESISTIVITY; DEPENDENCE; SI(100)
- 제목
- Effect of thermal annealing on structural, electrical, and magnetic properties of Ag-doped La0.67Ca0.33MnO3 thin films grown on LaAlO3 substrates
- 저자
- Zhang, Pengxiang; Zhu, Shaojiang ; Liu, Xiang ; Peng, Junbiao; Kim, Tae Whan; Habermeier, HU
- 발행일
- 2006-02
- 유형
- Article
- 권
- 45
- 호
- 2A
- 페이지
- 727 ~ 729