标题: | Diamagnetic Response of Exciton Complexes in Semiconductor Quantum Dots |
作者: | Tsai, Ming-Fu Lin, Hsuan Lin, Chia-Hsien Lin, Sheng-Di Wang, Sheng-Yun Lo, Ming-Cheng Cheng, Shun-Jen Lee, Ming-Chih Chang, Wen-Hao 电子物理学系 电子工程学系及电子研究所 Department of Electrophysics Department of Electronics Engineering and Institute of Electronics |
公开日期: | 31-十二月-2008 |
摘要: | We report measurements of diamagnetic shifts for different exciton complexes confined in small InAs quantum dots. The measured diamagnetic responses are sensitive to the number of carriers in the exciton complexes, with systematic differences between neutral excitons, biexcitons, and trions. Theoretical calculations suggest that such systematic differences arise from very different extents of electron and hole wave functions confined in small quantum dots. The measured magnetic response of Coulomb energies is found to vary with the cube of the wave function extent, and can be a sensitive probe to the electron-hole wave function asymmetry. |
URI: | http://dx.doi.org/10.1103/PhysRevLett.101.267402 http://hdl.handle.net/11536/8010 |
ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.101.267402 |
期刊: | PHYSICAL REVIEW LETTERS |
Volume: | 101 |
Issue: | 26 |
起始页: | 0 |
结束页: | 0 |
显示于类别: | Articles |
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