...
首页> 外文期刊>Physical review >Nanoscale Spin Seebeck Rectifier: Controlling Thermal Spin Transport across Insulating Magnetic Junctions with Localized Spin
【24h】

Nanoscale Spin Seebeck Rectifier: Controlling Thermal Spin Transport across Insulating Magnetic Junctions with Localized Spin

机译:纳米级自旋塞贝克整流器:通过局部自旋控制跨绝缘磁结的热自旋传输

获取原文
获取原文并翻译 | 示例
           

摘要

The spin Seebeck effect is studied across a charge insulating magnetic junction, in which thermal-spin conjugate transport is assisted by the exchange interactions between the localized spin in the center and electrons in metallic leads. We show that, in contrast with bulk spin Seebeck effect, the figure of merit of such nanoscale thermal-spin conversion can be infinite, leading to the ideal Carnot efficiency in the linear response regime. We also find that in the nonlinear spin Seebeck transport regime the device possesses the asymmetric and negative differential spin Seebeck effects. In the last, the situations with leaking electron tunneling are also discussed. This nanoscale thermal spin rectifier, by tuning the junction parameters, can act as a spin Seebeck diode, spin Seebeck transistor, and spin Seebeck switch, which could have substantial implications for flexible thermal and information control in molecular spin caloritronics.
机译:在电荷绝缘磁性结上研究了自旋塞贝克效应,其中中心的局部自旋与金属引线中的电子之间的交换相互作用有助于热自旋共轭传输。我们表明,与本体自旋塞贝克效应相反,这种纳米级热自旋转换的品质因数可以无限大,从而在线性响应范围内产生理想的卡诺效率。我们还发现,在非线性自旋塞贝克传输机制中,该器件具有非对称和负微分自旋塞贝克效应。最后,讨论了电子隧穿泄漏的情况。这种纳米级热自旋整流器可通过调整结参数来充当自旋Seebeck二极管,自旋Seebeck晶体管和自旋Seebeck开关,这可能会对分子自旋热电子学中的灵活热和信息控制产生实质性影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号