Conductance of single-electron transistor with single island

Abstract

With the decrease of the feature size of MOS based circuits, the power consumption of micro-processors has dramatically increased during the last decade, which now mainly restricts the development of the micro-processors.Single-electronic transistors (SETs) are considered as the attractive candidates for post-COMS VLSI due to their ultra-small size and low power consumption.Based on Orthodox theory,the model of conductance is investigated in detail.The conductance of SET with single island is in damped oscillation with a period of T(Vds), and it is close to an intrisical value with the increase of |Vds|. This characteristic of Gds is affected by temperature, parameters of junctions, and so on. The results show that the analysis of conductance is very useful for the very large scale integration of SET devices.

Transport through artificial single-molecule magnets: Spin-pair state sequential tunneling and Kondo effects

“…The third and the fourth terms describe the effective Mn-hole exchange coupling where γ is a dimensionless parameter depending on the heavy-light hole mixing. [27] The exchange interaction is highly anisotropic due to strong spin-orbit coupling so that the spin-flip between hole and large spin is suppressed (γ = 0) and we may only consider this special case in the present work. Unless explicitly stated otherwise, we shall henceforth work in units where e = h = 1.…”

“…[21] Thus one thinks of the artificial counterparts to molecules, [22][23][24] such as SMM. The successful fabrication of quantum dot (QD) [25][26][27][28][29][30][31][32][33] doped with a single Mn +2 ion has stimulated many studies on the quantum dot with a single magnetic ion. The theoretical investigation indicates that a II-VI semiconductor QD doped with a single Mn atom behaves like a tunable nanomagnet whose magnetization and anisotropy can be manipulated electrically.…”