TY - JOUR
T1 - Enigmatic 4/11 state
T2 - A prototype for unconventional fractional quantum hall effect
AU - Mukherjee, Sutirtha
AU - Mandal, Sudhansu S.
AU - Wu, Ying Hai
AU - Wójs, Arkadiusz
AU - Jain, Jainendra K.
PY - 2014/1/6
Y1 - 2014/1/6
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.112.016801
DO - 10.1103/PhysRevLett.112.016801
M3 - Article
C2 - 24483916
AN - SCOPUS:84892406358
SN - 0031-9007
VL - 112
JO - Physical review letters
JF - Physical review letters
IS - 1
M1 - 016801
ER -