2014/12/29 by Xue‐Bin Wang, Xuebin Wang, Hailong Fu +8 · 26 citations
Physics and Astronomy · #Bubble #Condensed matter physics #Electron #Landau quantization #Lattice (music) #Phase (matter) #Phase diagram #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum Hall effect #Quantum and electron transport phenomena #Quantum mechanics #Quantum phase transition #Reentrancy #Topological Materials and Phenomena #Wigner crystal #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.91.115301
published in Physical Review B 91(11) (American Physical Society) · 11 pages, 3 figures
arxiv created 2014/12/29 · openalex publication_date 2015/03/02 · arxiv updated 2015/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In the higher Landau levels (N>0) a reentrant integer quantum Hall effect (RIQHE) state, which resides at fractional filling factors but exhibits integer Hall plateaus, has been previously observed and studied extensively. The nonlinear dynamics of the RIQHE were measured by microwave resonance, with the results consistent with an electronic bubble phase pinned by impurities. We have carried out depinning experiments on the N=2 bubble phases by using Corbino geometry, where depinning threshold values have been systematically measured as a function of magnetic fields and temperatures. Domain sizes and pinning potential of the bubble phases have been estimated from the nonlinear transport data.