<p>We demonstrate that the interaction of dc temperature gradient with ac magnetic field in temperature-biased two-dimensional electron systems leads to formation of a new electromagnetic mode, a two-dimensional thermomagnetic wave (2D TMW). This wave is transverse electric and nonreciprocal, and its damping rate can be lower than that of conventional 2D plasma waves. The <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11448_2025_4221_Article_IEq1.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(Q\)</EquationSource> <!--JETPLet2560646Petrov-m1--> </InlineEquation>-factor of 2D TMW is independent of the wave vector. Numerical estimates show that in state-of-the-art two-dimensional electrons systems the 2D&#xa0;TMW <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11448_2025_4221_Article_IEq1.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(Q\)</EquationSource> <!--JETPLet2560646Petrov-m2--> </InlineEquation>-factor is the order of 10<sup>–3</sup>. We discuss possible ways to overcome this issue.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Nonreciprocal Waves in Two-Dimensional Electron Systems with Temperature Gradient

  • A. S. Petrov

摘要

We demonstrate that the interaction of dc temperature gradient with ac magnetic field in temperature-biased two-dimensional electron systems leads to formation of a new electromagnetic mode, a two-dimensional thermomagnetic wave (2D TMW). This wave is transverse electric and nonreciprocal, and its damping rate can be lower than that of conventional 2D plasma waves. The \(Q\) -factor of 2D TMW is independent of the wave vector. Numerical estimates show that in state-of-the-art two-dimensional electrons systems the 2D TMW \(Q\) -factor is the order of 10–3. We discuss possible ways to overcome this issue.