Competing quantum Hall phases in the second Landau level in the low-density limit
نویسندگان
چکیده
W. Pan,1 A. Serafin,2 J. S. Xia,2 L. Yin,2 N. S. Sullivan,2 K. W. Baldwin,3 K. W. West,3 L. N. Pfeiffer,3 and D. C. Tsui3 1Sandia National Laboratories, Albuquerque, New Mexico 87185, USA 2University of Florida and National High Magnetic Field Laboratory, Gainesville, Florida 32611, USA 3Princeton University, Princeton, New Jersey 08544, USA (Received 20 June 2013; revised manuscript received 19 May 2014; published 9 June 2014)
منابع مشابه
بررسی اثر صحیح کوانتومی هال در سیستمهای دارای ناخالصی به روش تبدیل پیمانهای در حضور نقطههای کوانتومی
In this paper we study the integer quantum Hall effect (IQHE) on the systems with different types of impurities in delta and gaussian forms. The Landau energy levels in the presence of impurity split in two different levels,the extended and localized levels, emerging then the Hall step. Finally, we add a specified form of a quantum dot potential to a system with impurity, and observed that incr...
متن کاملRobust fractional quantum Hall effect in the N=2 Landau level in bilayer graphene
The fractional quantum Hall effect is a canonical example of electron-electron interactions producing new ground states in many-body systems. Most fractional quantum Hall studies have focussed on the lowest Landau level, whose fractional states are successfully explained by the composite fermion model. In the widely studied GaAs-based system, the composite fermion picture is thought to become u...
متن کاملCompetition between a fractional quantum hall liquid and bubble and Wigner crystal phases in the third Landau level.
Magnetotransport measurements were performed in an ultrahigh mobility GaAs/AlGaAs quantum well of density approximately 3.0 x 10(11) cm(-2). The temperature dependence of the magnetoresistance Rxx was studied in detail in the vicinity of nu=9/2. In particular, we discovered new minima in Rxx at a filling factor nu approximately 41/5 and 44/5, but only at intermediate temperatures 80 approximate...
متن کاملEvidence for a fractional quantum Hall state with anisotropic longitudinal transport
At high magnetic fields, where the Fermi level lies in the N = 0 lowest Landau level (LL), a clean two-dimensional electron system (2DES) exhibits numerous incompressible liquid phases which display the fractional quantized Hall effect (FQHE) [1]. These liquid phases do not break rotational symmetry, exhibiting resistivities which are isotropic in the plane. In contrast, at lower fields, when t...
متن کاملQuantum Phases in Partially Filled Landau Levels
We compare the energies of different electron solids, such as bubble crystals with triangular and square symmetry and stripe phases, to those of correlated quantum liquids in partially filled intermediate Landau levels. Multiple transitions between these phases when varying the filling of the top-most partially filled Landau level explain the observed reentrance of the integer quantum Hall effe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014