AI 中文总结
研究手性超导菱面体石墨烯中博戈留波夫准粒子的贝里曲率效应，用两能带哈密顿量计算相关物理量，探讨正常态能带扭曲影响，发现其费米面调制反常霍尔输运，影响热霍尔电导率及能斯特响应。
AI 中文摘要
我们研究了手性超导菱面体石墨烯中博戈留波夫准粒子的贝里曲率效应。使用两能带博戈留波夫 - 德热纳哈密顿量描述超导准粒子，计算了动量空间贝里曲率、轨道磁矩、反常热霍尔效应以及手性p波超导态的反常自旋和轨道能斯特输运。研究了菱面体石墨烯中正常态能带扭曲对准粒子激发的博戈留波夫费米面的影响。发现博戈留波夫费米面定性地调制反常霍尔输运，导致热霍尔电导率偏离量子化值并强烈增强自旋和轨道能斯特响应。
英文摘要
We study the Berry curvature effects of the Bogoliubov quasiparticles in chiral superconducting rhombohedral graphene. Using a two-band Bogoliubov-de Gennes Hamiltonian to describe the superconducting quasiparticles, we calculate the momentum-space Berry curvature, orbital magnetic moment, and anomalous thermal Hall, spin Nernst, and orbital Nernst transport of chiral $p$-wave superconducting states. We investigate the impact of normal-state band warping in rhombohedral graphene, which can generate Bogoliubov Fermi surfaces for quasiparticle excitations. We find that Bogoliubov Fermi surfaces qualitatively modify the anomalous transport responses, inducing a deviation of the thermal Hall conductivity from the quantized value and strongly enhancing the spin and orbital Nernst responses.
Comments12 pages, 5 figures
