WJCMP  Vol.2 No.4 , November 2012
Magnetic-Field Effects on Donor Impurity States in a Quantum Well
Abstract: Green’s function technique is used to obtain the solution of Shredinger equation for impurity states in a quantum well (QW) under the magnetic field. Binding energy of impurity states is defined as poles of the wave function. We studied effects of the magnetic field magnitude and impurity position on the binding energy. The calculations were performed for both ground and excited states. The dependences of binding energies versus impurity position and magnetic field are presented for GaAs/Al0.3Ga0.7As QW.
Cite this paper: A. Abramov, "Magnetic-Field Effects on Donor Impurity States in a Quantum Well," World Journal of Condensed Matter Physics, Vol. 2 No. 4, 2012, pp. 188-191. doi: 10.4236/wjcmp.2012.24031.

[1]   R. L. Green and K. K. Bajaj, “Effect of Magnetic Field on the Energy Levels of a Hydrogenic Impurity Center in GaAs/Ga1-xAlxAs Quantum-Well Structures,” Physical Review B, Vol. 31, No. 2, 1985, pp. 913-918. doi:10.1103/PhysRevB.31.913

[2]   N. Nguen, J. X. Zang, R. Ranganathan, B. D. McCombe and M. L. Rustgi, “Energy Levels of a Hydrogenic Impurity in GaAs/Ga1-xAlxAs Multiple-Quantum-Well Structures with Narrow Barriers in a Magnetic Field,” Physical Review B, Vol. 48, No. 19, 1993, pp. 14226-14231. doi:10.1103/PhysRevB.48.14226

[3]   D. M. Larsen, “Excited States of Donors in Quantum Wells in a Magnetic Field,” Physical Review B, Vol. 44, No. 11, 1991, pp. 5629-5634. doi:10.1103/PhysRevB.44.5629

[4]   G. Brozak, B. D. Mccombe, D. M. Larsen, “Potential and Magnetic Field Confinement of Shallow Donor Impurities in Semiconductor Quantum Wells,” Physical Review B, Vol. 40, No. 2, 1989, pp. 1265-1270. doi:10.1103/PhysRevB.40.1265

[5]   R. Chen, J. P. Cheng, D. L. Lin, B. D. McCombe and T. F. George, “Excited States of Hydrogenic Impurities in Quantum Wells in Magnetic Fields,” Journal of Physics: Condensed Matter, Vol. 7, No. 18, 1995, p. 3577. doi:10.1088/0953-8984/7/18/021

[6]   V. Ya Aleshkin and L. V. Gavrilenko, “Calculation of the States of Shallow Donors in Quantum Wells in a Magnetic Field Using Plane Wave Expansion,” Semiconductors, Vol. 39, No. 1, 2005, pp. 54-57. doi:10.1134/1.1852645

[7]   A. A. Abramov, “Resonant Donor States in Quantum Well,” Modern Physics Letters B, Vol. 25, No. 2, 2011, p. 89. doi:10.1142/S0217984911025493

[8]   A. A. Abramov, Y. G. Belichenko and V. N. Tulupenko, “The Influence of the Ionized Impurity Delta-Layer Potential in the Quantum Well on impurity Binding Energy,” Journal of Applied Physics, Vol. 109, No. 7, 2011, Article ID: 064303.