Heat flux deflection induced by hydrodynamic electron transport in a homogeneous Corbino disk under magnetic field
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866917413803524096 |
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| author | Zhang, Chuang Lian, Meng Liang, Hong Li, Xiaokang Guo, Zhaoli Lü, JingTao |
| author_facet | Zhang, Chuang Lian, Meng Liang, Hong Li, Xiaokang Guo, Zhaoli Lü, JingTao |
| contents | Hydrodynamic electron transport, namely, the electric behaviors in solid materials at the macroscopic level are similar to the fluid hydrodynamics when the momentum-conserving electron-electron scattering plays the leading role, has got much attention in the past ten years. However, most of previous studies mainly focus on the electric properties. In this work, the thermal behaviors of hydrodynamic electron transport in a homogeneous 2D Corbino disk geometry is studied by the electron Boltzmann transport equation (eBTE) coupled with the Poisson equation under the magnetic field perpendicular to disk plane. Results show that in the electron hydrodynamic regime, the heat flux deflection phenomenon appears under the radial electric field or temperature gradient, namely, the heat flux no longer flows only along the radial direction and there is heat flux in the tangential direction of the radius. Heat flux deflection phenomenon is suppressed by momentum-relaxing scattering process and promoted by momentum-conserving scattering process. When an electric potential gradient or temperature gradient in the same direction is applied separately, the direction of heat flux is reversed in the electron hydrodynamic regime. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_15062 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Heat flux deflection induced by hydrodynamic electron transport in a homogeneous Corbino disk under magnetic field Zhang, Chuang Lian, Meng Liang, Hong Li, Xiaokang Guo, Zhaoli Lü, JingTao Mesoscale and Nanoscale Physics Strongly Correlated Electrons 82D37, 80A05 80A19 Hydrodynamic electron transport, namely, the electric behaviors in solid materials at the macroscopic level are similar to the fluid hydrodynamics when the momentum-conserving electron-electron scattering plays the leading role, has got much attention in the past ten years. However, most of previous studies mainly focus on the electric properties. In this work, the thermal behaviors of hydrodynamic electron transport in a homogeneous 2D Corbino disk geometry is studied by the electron Boltzmann transport equation (eBTE) coupled with the Poisson equation under the magnetic field perpendicular to disk plane. Results show that in the electron hydrodynamic regime, the heat flux deflection phenomenon appears under the radial electric field or temperature gradient, namely, the heat flux no longer flows only along the radial direction and there is heat flux in the tangential direction of the radius. Heat flux deflection phenomenon is suppressed by momentum-relaxing scattering process and promoted by momentum-conserving scattering process. When an electric potential gradient or temperature gradient in the same direction is applied separately, the direction of heat flux is reversed in the electron hydrodynamic regime. |
| title | Heat flux deflection induced by hydrodynamic electron transport in a homogeneous Corbino disk under magnetic field |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons 82D37, 80A05 80A19 |
| url | https://arxiv.org/abs/2604.15062 |