EFFECT OF TEMPERATURE AND DIAMAGNETIC SUSCEPTIBILITY ON IMPURITY BINDING ENERGY OF A SPHERICAL QUANTUM DOT

Abstract

The effect of temperature and diamagnetic susceptibiltiyon the hydrogenic donor impurity binding energies of the low-lying states in a GaAs/Ga1-xAlxAsspherical quantum dot is investigated by variational approach within the effective mass approximation. Our result shows that the impurity binding energy decreases with increase in temperature and the diamagnetic susceptibility increases with increase in temperature for larger dot radii and it is not it is not significant to low dot radii. All the calculations have been carried out with finite barriers, and good agreement is obtained with the existing literature values.

Keywords

spherical quantum dot, square well confinement, binging energy, effective mass.

References

[1] R.S.Daries Bella and K. Navaneethakrishnan, Solid State Commun. 130 (2004) 773.
[2] E.Sadeghi and GhRezaie, Parmana Journal of Physics.75 (2010) 749.
[3] A.John Peter, Physica E, 28 (2005) 225.
[4] A.M.Elabasy, Physica Scripta, 46 (1992) 473.
[5] G. Rezaei, N.A.Doostimotlagh and B.Vaseghi, Physica E43 (2011) 1087.
[6] G. Rezaei, S.F.Taghizadeh and A.A.Enshaeian, Physica E44 (2012) 1566.
[7] Gh.Safarpour, M.Barati, M.Moradi, S.Davatolhagh, A.Zamani, Superlattices and Microstructures 52 (2012) 387.
[8] R.Khordad, Physica E 41 (2009) 543
[9] A.Sivakami, A.RejoJeice, and K.Navaneethakrishnan, International Journal of Modern Physics B.24 (2010) 556.
[10] O.Madelung Ed., Semiconductor Basic Data, Springer-verlag (1996) 103.
[11] E. Kasapoglu, H. Sari, I. Sökmen, Physica B 373 (2006) 280.
[12] G.A. Samara, Physical Review B27 (1983) 3494.
[13] A R Jeice, Sr G Jayam and K S J Wilson, Indian Journal of Physics 90 (2016) 805.
[14] A. RejoJeice, and K.Navaneethakrishnan, Brazilian Journal of Physics 39 (2009) 526.
[15] A.Sivakami and V.Gayathri, Superlattices and Microstructures 58 (2013) 218.
[16] B.Welber, M.Cardona, C.K.Kim, S.Rodriquez, Physical Review B12 (1975) 5729.
[17] H.J.Ehrenreich, Journal of Applied Physics 32 (1961) 2155
[18] E. Kasapoglu, Physics Letters A373 (2008) 140
[19] D.E.Aspnes, Physical Review B14 (1976) 53319.
[20] S.Rajashabala and K.Navaneetha krishnan, Superlattices and Microstructures 43 (2008) 247.
[21] Sr. Gerardin Jeyam and K. Navaneethakrishnan, Solid State Commun. 126 (2003) 681.
[22] A.Benedictal, B.Sukumar, and K.Navaneethakrishanan, Phys. Stat. Sol.(b) 178 (1993) 167
[23] S.J.Liang and W.F.Xie.Eur.Phys.J.B81 (2011) 70.
[24] Zhen-Yan Deng, Jing-Kun Guo and Ting-Rong Lai, J.Phys.Cond.Matter. 6(1994) 5949.
[25] G. Rezaei, N.A.Doostimotlagh and B.Vaseghi, Commun. Theor. Phys. 56 (2011) 377.
[26] J.J.Sharkey, Chang Kyoo Yoo and A.John Peter, Superlattices and Microstructure 48 (2010) 248.
[27] R.Khordad and N.Fathizadeh, Physica B407 (2012) 1301.

To cite this article

Rejo Jeice, A., & Joseph Wilson, K. S. (2018). Effect of Temperature and Diamagnetic Susceptibility on Impurity binding Energy of a Spherical Quantum Dot. Sparkling International Journal of Multidisciplinary Research Studies, 1(1), 1-8.