Abolghasem Nourmohammadi*, Saeid Jalali Asadabadi, Mohammad Hasan Yousefi and Majid Ghasemzadeh
* Corresponding author: Abolghasem Nourmohammadi a.nourmohammadi@phys.ui.ac.ir
Nanoscale Research Letters 2012, 7:689 doi:10.1186/1556-276X-7-689
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