Quantum transport theory for the ac response of interacting resonant-tunneling devices
文献类型：期刊论文
| 作者 | Li, XQ; Su, ZB ; Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM.
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 1996 |
| 卷号 | 54期号:15页码:10807-10813 |
| 关键词 | Time-dependent Transport Wigner-function Anderson Model Frequencies Conductance Equilibrium Inductance Voltage Systems Field |
| ISSN号 | 0163-1829 |
| 英文摘要 | We present an analytical approach to the frequency response of the interacting resonant-tunneling devices (RTD's) to a small ac signal voltage. Within the wideband assumption for the lead electrons and Hartree approximation for the tunneling effect, we obtain a compact formula for the sc conductance. This has an interesting structure in that the geometry factor of the device is separated out from the interaction in the device. This feature allows us to get some physical insight into the effect of resonance and interaction on the ac response. In particular, we interpret the ac response in the physical picture of photon-assisted resonance between the Fermi surface and the central electron spectrum. The consistency between our result and other approaches is shown for the noninteracting system. We also apply our formula to the ac response of interacting RTD's, where the Hubbard electron-electron interaction in the resonant region is taken into account, and the remarkable features of charging effects on the ac response are presented. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12574]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM. |
| 推荐引用方式 GB/T 7714 | Li, XQ,Su, ZB,Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM.. Quantum transport theory for the ac response of interacting resonant-tunneling devices[J]. PHYSICAL REVIEW B,1996,54(15):10807-10813. |
| APA | Li, XQ,Su, ZB,&Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM..(1996).Quantum transport theory for the ac response of interacting resonant-tunneling devices.PHYSICAL REVIEW B,54(15),10807-10813. |
| MLA | Li, XQ,et al."Quantum transport theory for the ac response of interacting resonant-tunneling devices".PHYSICAL REVIEW B 54.15(1996):10807-10813. |
入库方式： OAI收割
来源：理论物理研究所
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