纵向电场对石墨烯振荡磁热效应的影响
Influence of longitudinal electric field on the oscillating magnetocaloric effect of graphenes
摘要：
目前的努力探讨了纵向施加的电场对石墨烯的磁热性能的影响。磁熵变$ΔS(T,ΔB,E)$有两个贡献：$S_{cos}(T,B,E)$具有$m$上的振荡特性，与磁场成反比;以及$S_{per}(T,B,E)$也具有$m$上的周期特性。与没有电场的情况相比，磁熵变的最大值由于施加的电场而增大或减小，这取决于$m$的值;此外，发生最大熵变的温度由于电场而降低。
英文摘要：
The present effort explores the influence of a longitudinal applied electric field on the magnetocaloric properties of graphenes. The magnetic entropy change $ΔS(T,ΔB,E)$ has two contributions: $S_{cos}(T,B,E)$ with an oscillating character on $m$, inversely proportional to the magnetic field; and $S_{per}(T,B,E)$ with a periodic character also on $m$. In comparison to the case without electric field, the maximum value of the magnetic entropy change either increases or decreases due to an applied electric field, depending on the value of $m$; and, in addition, the temperature in which the maximum entropy change occurs decreases due to the electric field.
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