The European Physical Journal Plus
The nonlinear optical absorption in $$\hbox {Al}_{{x}}\hbox {Ga}_{1-x}$$As/GaAs double-graded quantum wells: magnetic field effect and the position-dependent effective mass effect
Huan Yu, Zi Zhen, Yi-Sheng Shi, Kangxian Guo, Elmustapha Feddi, Jianhui Yuan, Zhihai Zhang