Domain Textures in the Fractional Quantum Hall Effect

Ziyu Liu; Ursula Wurstbauer; Lingjie Du; Ken W West; Loren N Pfeiffer; Michael J Manfra; Aron Pinczuk

doi:10.1103/PhysRevLett.128.017401

Domain Textures in the Fractional Quantum Hall Effect

Phys Rev Lett. 2022 Jan 7;128(1):017401. doi: 10.1103/PhysRevLett.128.017401.

Authors

Ziyu Liu¹, Ursula Wurstbauer², Lingjie Du³, Ken W West⁴, Loren N Pfeiffer⁴, Michael J Manfra^{5

6}, Aron Pinczuk^{1

7}

Affiliations

¹ Department of Physics, Columbia University, New York, New York 10027, USA.
² Institute of Physics, University of Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany.
³ School of Physics, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
⁴ Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
⁵ Department of Physics and Astronomy, School of Materials Engineering, and School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
⁶ Microsoft Quantum Lab Purdue, Purdue University, West Lafayette, Indiana 47907, USA.
⁷ Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA.

PMID: 35061454
DOI: 10.1103/PhysRevLett.128.017401

Abstract

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 factor v=1/3 offer significant experimental access to strong electron correlation physics in the FQHE.