分数量子霍尔液体中非平衡电子和核自旋的光学成像条纹域
Optically Imaged Striped Domains of Nonequilibrium Electronic and Nuclear Spins in a Fractional Quantum Hall Liquid.
作者信息
Moore John N, Hayakawa Junichiro, Mano Takaaki, Noda Takeshi, Yusa Go
机构信息
Department of Physics, Tohoku University, Sendai 980-8578, Japan.
National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan.
出版信息
Phys Rev Lett. 2017 Feb 17;118(7):076802. doi: 10.1103/PhysRevLett.118.076802.
Using photoluminescence microscopy enhanced by magnetic resonance, we visualize in real space both electron and nuclear polarization occurring in nonequilibrium fraction quantum Hall (FQH) liquids. We observe stripelike domain regions comprising FQH excited states which discretely form when the FQH liquid is excited by a source-drain current. These regions are deformable and give rise to bidirectionally polarized nuclear spins as spin-resolved electrons flow across their boundaries.
利用磁共振增强的光致发光显微镜，我们在实空间中可视化了非平衡分数量子霍尔（FQH）液体中发生的电子和核极化。我们观察到由FQH激发态组成的条纹状畴区域，当FQH液体被源漏电流激发时，这些区域会离散形成。这些区域是可变形的，并且当自旋分辨电子流过它们的边界时会产生双向极化的核自旋。
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