Magneto-Seebeck coefficient of the Fermi liquid in three-dimensional Dirac and Weyl semimetals
Magneto-Seebeck coefficient of the Fermi liquid in three-dimensional Dirac and Weyl semimetals
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DOI：
10.1103/physrevb.106.l081304
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发表时间：
2022-06
影响因子：
3.7
通讯作者：
F. R. Pratama;R. Saito;N. T. Hung
中科院分区：
文献类型：
--
作者：
F. R. Pratama;R. Saito;N. T. Hung
研究了三维Dirac/Weyl半金属中的无耗散磁塞贝克效应。霍尔电阻率ρ yx和热电霍尔系数α xy在量子极限处表现出稳定，此时电子仅占据第0朗道能级。在此条件下，塞贝克系数S xx≈ρ yx α xy中的量子振荡被抑制，无质量费米子转化为费米液体体系。我们证明了量子极限处的塞贝克系数可以用费米波长和热德布罗意波长的调和和来表示。
We investigate dissipationless magneto-Seebeck effect in three-dimensional Dirac/Weyl semimetal. The Hall resistivity ρ yx and thermoelectric Hall coefficient α xy exhibit plateaus at the quantum limit, where electrons occupy only the zeroth Landau level. In this condition, quantum oscillation in the Seebeck coefficient S xx ≈ ρ yx α xy is suppressed, and the massless fermions are transformed into a Fermi liquid system. We show that the Seebeck coefficient at the quantum limit is expressed by the harmonic sum of Fermi wavelength and thermal de Broglie wavelength scaled by magnetic length.