2013/07/31 by Sutirtha Mukherjee, Sudhansu S. Mandal, Ying-Hai Wu +3
Computer Science · Physics and Astronomy · #Angular momentum #Composite fermion #Condensed matter physics #Electron #Fermion #Magnetic field #Physics #Physics of Superconductivity and Magnetism #Quantum Hall effect #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Thermodynamics #Zeeman effect #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.112.016801
published as Phys. Rev. Lett. 112, 016801 (2014) · Published version
openalex publication_date 2014/01/06 · arxiv created 2014/01/16 · arxiv updated 2014/10/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The origin of the fractional quantum Hall effect (FQHE) at 4/11 and 5/13 has remained controversial. We make a compelling case that the FQHE is possible here for fully spin polarized composite fermions, but with an unconventional underlying physics. Thanks to a rather unusual interaction between composite fermions, the FQHE here results from the suppression of pairs with a relative angular momentum of three rather than one, confirming the exotic mechanism proposed by Wójs, Yi, and Quinn [Phys. Rev. B 69, 205322 (2004)]. We predict that the 4/11 state reported a decade ago by Pan et al. [Phys. Rev. Lett. 90, 016801 (2003)] is a conventional partially spin polarized FQHE of composite fermions, and we estimate the Zeeman energy where a phase transition into the unconventional fully spin polarized state will occur.