Bhattacharya Ranjini, Maiti Santanu K
Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 Barrackpore Trunk Road, Kolkata 700108, India.
J Phys Condens Matter. 2022 Oct 11;34(47). doi: 10.1088/1361-648X/ac96bc.
Efficient thermoelectric (TE) energy conversion is one of the most desirable solutions of our current day energy crisis. Exploiting the effect of quantum interference among electronic waves, in this work we propose a prescription of getting high TE efficiency, the so-called(), considering an interferometric geometry where a loop conductor is clamped between two heat baths. Unlike conventional junction configurations, we introduce an additional path for electron transfer directly from source to drain, due to their close proximity. The interplay between different paths leads to an enhanced( > 1). Moreover, the efficiency can be further regulated by tuning the inter-electrode coupling. The effects of magnetic flux threaded by the ring and disorder are also discussed. Our proposed prescription may lead to a new route of designing tunable TE devices at nanoscale level.
高效热电（TE）能量转换是解决当前能源危机最理想的方案之一。在这项工作中，考虑到一个环形导体夹在两个热库之间的干涉几何结构，利用电子波之间的量子干涉效应，我们提出了一种获得高TE效率的方法，即所谓的（此处原文未给出具体名称）。与传统的结配置不同，由于源极和漏极距离很近，我们引入了一条电子直接从源极转移到漏极的额外路径。不同路径之间的相互作用导致增强的（此处原文未明确增强的具体内容，推测为某个效率值或其他相关量）（>1）。此外，通过调节电极间耦合可以进一步调节效率。还讨论了穿过环的磁通量和无序的影响。我们提出的方法可能会为在纳米尺度设计可调谐TE器件开辟一条新途径。
