CAJ | 학술논문

利用自由电子模型和散射矩阵方法,研究两端直中间部分呈圆弧形弯曲的金属纳米线电导的量子相干振荡.发现低温下系统的电导在完全直金属纳米线电导常数下振荡,它起源于金属纳米线形状引起电子横向模式间的混合导致传导电子相干,这种效应在未来纳米电路工程设计中可能有重要应用价值.
이용자유전자모형화산사구진방법,연구량단직중간부분정원호형만곡적금속납미선전도적양자상간진탕.발현저온하계통적전도재완전직금속납미선전도상수하진탕,타기원우금속납미선형상인기전자횡향모식간적혼합도치전도전자상간,저충효응재미래납미전로공정설계중가능유중요응용개치.
Using free-electron model and scattering matrix approach,investigated the electron transport properties of a curved metallic nanowire which is consist of two straight nanowires connected by a curving part with uniform wire cress section.We found that in the zero temperature limit the electrical conductance of the system oscillate below the conductance value of a straight wire,this shape induced quantum conductance oscillation may origin from the quantum coherence mixture between the transverse modes in the curving part of the system,and this effect may be important in the future's nano-scale circuit engineering.