室温下测量了本实验室生长的Cd0.8Mn0.2Te和Cd0.9Mn0.1Te单晶体的法拉第旋转谱.通过提高布里渊区中心L点的能隙值(E1)改进了法拉第旋转的多振子模型.用改进的模型拟合实验结果,得到Cd0.8Mn0.2Te和Cd0.9Mn0.1Te单晶体布里渊区中心F点的能隙值(E0)分别为1.804 eV和1.667 eV.该E0值比以往任何研究都更接近于计算值.
The Faraday rotation of Cd0.8Mn0.2Te and Cd0.9Mn0.1Te single crystals grown in our laboratory was measured at room tem-perature. We analyzed our Faraday rotation data in terms of a modified multi-oscillator model by improving the value of the band gap at L point in the Brillouin zone (E1) and obtained the values of the gap at the Fpoint in the Brillouin zone (E0) for Cd0.8Mn0.2Te and Cd0.9Mn0.1Te from the fitting to 1.667 eV and 1.804 eV, respectively. The values of Eo are more close to the calculated ones than nearly all of the previous studies.
参考文献
| [1] | Gaj J A;Calazka R R;Nawrocki M .[J].Solid State Communications,1978,25(03):193. |
| [2] | Gaj J A;Ginter J;Galazka R R .[J].Phys Suatua Solidi B,1978,89(02):655. |
| [3] | Bartholomew D U;Furdyna J K;Ramdas A K .[J].Physical Review B,1986,34(10):6943. |
| [4] | NikitinPI;SavchukAI .[J].Uspekhi Fizicheskikh Nauk,1990,160(11):167. |
| [5] | Buffer MA .[J].Solid State Communications,1987,62(01):45. |
| [6] | Pikhtin A N;Yas'kov A D .[J].Fizika I Tekhnika Poluprovodnikov,1978,12(06):1047. |
| [7] | Jimenez-Gonzalez H J;Aggarwal R L;Becla P .[J].Physical Review B,1992,45(24):14011. |
| [8] | Spalek J;Lewicki A;Tarnawski Z et al.[J].Physical Review B,1986,33(05):3407. |
| [9] | Agganval R L;Jasperson S N;Becal P et al.[J].Physical Review B,1985,32(08):5132. |
| [10] | Gaj J A;Planel R;Fishman G .[J].Solid State Communications,1979,29(05):435. |
| [11] | Zhang J J;Jie W Q;Wang T et al.[J].Materials Research Bulletin,2008,43(5-6):1239. |
| [12] | Chert C J;Wang X Z;Liu J Z et al.[J].Acts Scientiarum Naturalium Universitatis Pekinensis,1992,28(01):101. |
| [13] | Becla P;Kaiser D;Giles N C et al.[J].Journal of Applied Physics,1987,62(04):1352. |
| [14] | 刘宜华,张连生.稀释磁性半导体[J].物理学进展,1994(01):82. |
| [15] | Nikitin Pl;Savchuk A I .[J].SovPhys Usp,1990,33(11):974. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%