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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effect of temperature on the first excited state splitting energy of the impurity magneto acoustic polaron in monolayer graphene
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Effect of temperature on the first excited state splitting energy of the impurity magneto acoustic polaron in monolayer graphene

机译:温度对单层石墨烯杂质磁化偏振子的第一激发态分裂能的影响

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摘要

The temperature properties of the first excited state (FES) splitting energy (FESSE) of a strongly-coupled impurity magneto acoustic polaron (IMAP) in monolayer graphene is studied by using the linear combination operator method, unitary transformation and quantum statistical theory. The expression of the FESSE versus the temperature, the Coulombic impurity potential strength (CIPS), the Debye cutoff wave number (DCWN) and the magnetitude of the magnetic field strength (MMFS) has been derived. Numerical calculations shown that (1) the FES energy curves can be divided into two curves, positive and negative; (2) the FESSE is a decreasing function of the CIPS; (3) the FESSE increases with the decrease of temperature, but increases with increasing the MMFS; (4) the smaller the DCWN, the greater the FESSE.
机译:利用线性组合算符方法、幺正变换和量子统计理论研究了单层石墨烯中强耦合杂质磁声极化子(IMAP)的第一激发态分裂能(FESSE)的温度特性。推导了FESSE与温度、库仑杂质势强度(CIPS)、德拜截止波数(DCWN)和磁场强度(MMFS)的关系式。数值计算表明:(1)FES能量曲线可分为正负两条曲线;(2) FESSE是CIPS的递减函数;(3) FESSE随温度的降低而增加,但随MMFS的增加而增加;(4) DCWN越小,FESSE越大。

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