Domain Textures in the Fractional Quantum Hall Effect
Domain Textures in the Fractional Quantum Hall Effect
复制标题
分数量子霍尔效应中的域纹理
DOI：
10.1103/physrevlett.128.017401
复制
发表时间：
2022
影响因子：
8.6
通讯作者：
Pinczuk, Aron
中科院分区：
文献类型：
--
作者：
Liu, Ziyu;Wurstbauer, Ursula;Du, Lingjie;West, Ken W.;Pfeiffer, Loren N.;Manfra, Michael J.;Pinczuk, Aron
用共振非弹性光散射方法研究了分数量子霍尔效应体系中畴结构对低激发态的影响。我们证明了量子流体的大域支持长波长中性集体激发，具有定义明确的波矢（动量）色散，可以用均匀相位的理论来解释。在填充因子下，在长波长磁共振等大范围的磁共振流体中获得色散的低中性集体模，为磁共振流体中的强电子相关物理提供了重要的实验途径。
Impacts of domain textures on low-lying neutral excitations in the bulk of fractional quantum Hall effect (FQHE) systems are probed by resonant inelastic light scattering. We demonstrate that large domains of quantum fluids support long-wavelength neutral collective excitations with well-defined wave vector (momentum) dispersion that could be interpreted by theories for uniform phases. Access to dispersive low-lying neutral collective modes in large domains of FQHE fluids such as long wavelength magnetorotons at filling factoroffer significant experimental access to strong electron correlation physics in the FQHE.