| 학회 |
한국재료학회 |
| 학술대회 |
2007년 가을 (11/02 ~ 11/02, 성균관대학교) |
| 권호 |
13권 2호 |
| 발표분야 |
전자재료 |
| 제목 |
Electrical Conduction of Cr-Doped SrTiO3 Thin Films |
| 초록 |
The dc and ac conductivity of Cr-doped SrTiO3 thin film in metal – insulator – metal (MIM) structure was investigated in the temperature range from 100 K to 400 K. In dc measurement, current – voltage (I-V) characteristics exhibited the hysteretic and asymmetric behaviors. Two transport mechanisms i.e., the variable range hopping (VRH) and the space charge limit current (SCLC) conduction, are responsible for the conduction behavior. In the positive voltage region, the dominant electrical mechanism was the VRH conduction. In the negative voltage region, the VRH conduction occurs at low voltages, followed by the SCLC conduction above the trap-filled limit voltage VTFL. In addition, ac measurement showed that the conduction was also the hopping and ac trap-controlled conduction. The effect of a deficient oxygen layer at the top and bottom interfaces on the resistance switching is discussed. |
| 저자 |
Bach Thang Phan1, Taekjib Choi2, Jaichan Lee3
|
| 소속 |
1School of Materials Science and Engineering, 2Sung Kyun Kwan Univ., 3Suwon 440-746 |
| 키워드 |
Cr-doped SrTO3; trap-controlled space charge limit; resistance switching
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| E-Mail |
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