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Electromagnetic Hall Current Effect and Fractional Heat order for Microtemperature Photo-Excited Semiconductor Medium with Laser Pulses
Results in Physics ( IF 5.3 ) Pub Date : 2020-05-25 , DOI: 10.1016/j.rinp.2020.103161
A.M.S. Mahdy , Kh. Lotfy , M.H. Ahmed , A. El-Bary , E.A. Ismail

In this paper, the elastic semiconductor medium is exposed to outer laser pulses. The laser pulses cause vibrations in the inner structure of the medium with the time fractional heat order. Under the influence of strong external magnetic field, the effect of Hall current is appeared in this case the interaction between the strong magnetic field and microstructure (microelements) of the elastic medium is studied. The microtemperature states is generated due to photo-excited electrons in context of photothermal transport process. The one-dimensional (1D) deformation is used to describe the overlapping process between elastic-magneto-plasma-thermal distribution waves in case of semiconductor elastic rod. The governing equations are solved in Laplace integral transform domain in microelements field. Some external loads are applied at the outer free surface of the medium to obtain the physical quantities under investigation. To obtain the complete solutions of the physical quantities the numerical inversion technique of Laplace transform is used. The Hall current, fractional parameters and micro-temperature effect are presented graphically and discussed theoretically under the effect of laser pulses.



中文翻译:

激光脉冲的微温光激发半导体介质的电磁霍尔电流效应和分数热阶

在本文中,弹性半导体介质暴露于外部激光脉冲。激光脉冲以时间分数热阶在介质的内部结构中引起振动。在强外部磁场的影响下,出现了霍尔电流的影响,在这种情况下,研究了强磁场与弹性介质的微观结构(微量元素)之间的相互作用。在光热传输过程中,由于光激发电子而产生微温度状态。一维(1D)变形用于描述半导体弹性棒情况下弹性-磁-等离子体-热分布波之间的重叠过程。控制方程在微元素领域的拉普拉斯积分变换域中求解。一些外部载荷施加在介质的外部自由表面上,以获得所研究的物理量。为了获得物理量的完整解,使用了拉普拉斯变换的数值反演技术。用图形表示霍尔电流,分数参数和微温度效应,并在激光脉冲的影响下进行理论讨论。

更新日期:2020-05-25
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