Magnetic-field effect on the diamagnetic susceptibility of hydrogenic impurities in quantum well-wires

✍ Scribed by M. Koksal; E. Kilicarslan; H. Sari; I. Sokmen

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 236 KB
• Volume: 404
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2009.07.103

✦ Synopsis

We have studied the magnetic field effects on the diamagnetic susceptibility and binding energy of a hydrogenic impurity in a quantum well-wire by taking into account spatially dependent screening. Using the effective-mass approximation within a variational scheme, binding energy and diamagnetic susceptibility of donor are obtained as a function of the magnetic field, length of the square quantum well-wire for different impurity positions. It is shown that the magnetic field effects on diamagnetic susceptibility can be more important for donors in quantum well-wires over a large range of wire dimensions.