内蒙古民族大学学报(自然科学版)
內矇古民族大學學報(自然科學版)
내몽고민족대학학보(자연과학판)
JOURNAL OF INNER MONGOLIA UNIVERSITY FOR NATIONALITIES(NATURAL SCIENCES)
2015年
3期
188-191,196
,共5页
有限抛物势%球壳量子点%极化子%基态能量%第一激发态能量
有限拋物勢%毬殼量子點%極化子%基態能量%第一激髮態能量
유한포물세%구각양자점%겁화자%기태능량%제일격발태능량
Finite quantum well%Spherical shell quantum dot%Polaron%Ground state energy%First excitation state en-ergy
采用平面波展开、求解能量本征方程、幺正变换及变分相结合的方法,研究了有限深势阱中球壳量子点中极化子的性质。数值计算结果表明极化子的基态能量(第一激发态能量)随势阱宽度和高度的增大而增大;当外径一定时,基态能量(第一激发态能量)随球壳内径增大而增大,当内径一定时,基态能量(第一激发态能量)随外径增大而减小。
採用平麵波展開、求解能量本徵方程、幺正變換及變分相結閤的方法,研究瞭有限深勢阱中毬殼量子點中極化子的性質。數值計算結果錶明極化子的基態能量(第一激髮態能量)隨勢阱寬度和高度的增大而增大;噹外徑一定時,基態能量(第一激髮態能量)隨毬殼內徑增大而增大,噹內徑一定時,基態能量(第一激髮態能量)隨外徑增大而減小。
채용평면파전개、구해능량본정방정、요정변환급변분상결합적방법,연구료유한심세정중구각양자점중겁화자적성질。수치계산결과표명겁화자적기태능량(제일격발태능량)수세정관도화고도적증대이증대;당외경일정시,기태능량(제일격발태능량)수구각내경증대이증대,당내경일정시,기태능량(제일격발태능량)수외경증대이감소。
The ground state properties of polaron in spherical shell quantum dot in finite potential well are studied by using expand the potential function as plane waves , solve precisely energy eigen-equation , variation method and LLP unitary. The numerical results indicate that the ground state energy(the First Excitation State Energy)of polaron increase with increasing the width or height of the potential barrier .When outer radius is given,the ground state ener-gy (the First Excitation State Energy)will increase with increasing inner radius,when inner radius is given,the ground state energy(the First Excitation State Energy)will decrease with increasing outer radius.