Abstract:Starting from the classical Hall effect,the quantum Hall effect and some involved new concepts and practical applications are introduced rather systematically and explained in simple terms. Key words:Hall effect;quantum Hall effect;fractional Hall effect; 引言 量子霍尔效应的发现是20世纪凝聚态物...
chiral boson theoryscalar string theoryChiral boson theory is introduced and its relevance to the quantum Hall effect is explained. It is shown that the chiral boson theory admits mode expansions which are essentially those which appear and are made use of in bosonic string theories. This ...
1/5, 2/9, 3/13, 5/2, 12/5 ...) values. The quantum Hall effect is referred to as the integer or fractional quantum Hall effect depending on whether ν is an integer or fraction respectively. The integer quantum Hall effect is very well understood, and can be simply explained in te...
The breakdown of the quantum Hall effect is consistently explained for every Hall step in terms of an S-shaped characteristic in the σ xx versus E y relations.doi:10.1016/0039-6028(86)90962-3T. TakamasuS. KomiyamaS. HiyamizuS. Sasa...
The Quantum Hall Effect Helicity.doi:10.1063/1.4917092The quantum Hall effect in semiconductor heterostructures is explained by two signs in the angular momentum j=l卤s and g=(2j+1)/(2l+1) along with the Landau factor (n+1/2). These modifications in the existing theories explain all of ...
An indication of the quantum Hall effect has been observed in the superlattice of PbTe-PbSnTe on BaF(111) substrate. The positions of steps in the Hall resistance are well explained, if the singlet (111) valley in the PbTe quantum well is unoccupied. Compressive strain in PbTe layers caused...
Theory of the breakdown of the quantum Hall effect Breakdown of the quantum Hall effect at high values of injected current is explained as a consequence of an abrupt formation of a metallic conduction path ... V.,Tsemekhman,K.,... - 《Phys.rev.b》 被引量: 77发表: 1997年 Voltage-prob...
We found that while SiC monolayer has a non-quantized valley Chern number due to a partial mixing of the Berry curvature peaks pertaining to the opposite valleys, there exist topologically protected gapless edge states within the bulk gap, leading to a quantum valley Hall effect. Doping of the...
The Fractional Quantum Hall Effect (FQHE) represents a very surprising recent discovery in solid state physics. It is observed in high-mobility, two-dimensional electron systems at low temperatures (≈1 K) in intense perpendicular magnetic fields (≈200
Theory of integer quantum Hall effect in graphene The observed quantization of the Hall conductivity in graphene at high magnetic fields is explained as being due to the dynamically generated spatial modul... IF Herbut - 《Physical Review B Condensed Matter》 被引量: 111发表: 2007年 Integer ...