Knowledge Management System of Institute of Theoretical Physics, CAS
Li, XQ; Su, ZB ; Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM.
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| Quantum transport theory for the ac response of interacting resonant-tunneling devices | |
| Source Publication | PHYSICAL REVIEW B
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| Keyword | Time-dependent Transport Wigner-function Anderson Model Frequencies Conductance Equilibrium Inductance Voltage Systems Field |
| Abstract | 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. |
| 1996 | |
| ISSN | 0163-1829 |
| Volume | 54Issue:15Pages:10807-10813 |
| Subject Area | Physics |
| Indexed By | SCI |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/12574 |
| Collection | SCI期刊论文 |
| Corresponding Author | Li, XQ , UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 ANTWERP,BELGIUM. |
| Recommended Citation 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. |
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