| 학회 |
한국재료학회 |
| 학술대회 |
2008년 봄 (05/22 ~ 05/23, 상록리조트) |
| 권호 |
14권 1호 |
| 발표분야 |
반도체재료 |
| 제목 |
Ac conductivity of Cr-doped SrTiO3 Thin Films |
| 초록 |
Ac conductivity of Cr-doped SrTiO3 thin films has been studied as a function of frequency and temperature. The impedance data showed the single relaxation process. The relaxation frequencies shifted to high frequencies with increasing the temperature. The activation energy for the relaxation and conduction were almost the same value of 0.2 eV. The dielectric relaxation mechanism is governed by the hopping and trap-controlled ac conduction. The ac electrical conduction is consistent with the dc electrical conduction, i.e., variable range hopping and trap-controlled space-charge- limited conductions. |
| 저자 |
Bach Thang Phan, Lee JaiChan
|
| 소속 |
School of Advanced Materials Science and Engineering SungKyunKwan Univ. |
| 키워드 |
ac conductivity; SrTiO3; hopping; trap controlled space charge limit
|
| E-Mail |
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