منابع مشابه
Striped Quantum Hall Phases
While a large number of fractional quantized Hall states have been discovered in the lowest Landau level, such states become increasingly rare in higher Landau levels. Few quantized Hall states have been observed in the first Landau level (Landau level filling factor 2 ≤ ν < 4) and no such states have so far been found for filling factors ν ≥ 4. Correspondingly, the role of electron-electron in...
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In many antiferromagnetic, quasi-two-dimensional materials, doping with holes leads to “stripe” phases, in which the holes congregate along antiphase domain walls in the otherwise antiferromagnetic texture. Using a suitably parametrized two-dimensional Heisenberg model on a square lattice, we study the spin wave spectra of well-ordered spin stripes, comparing bond-centered antiphase domain wall...
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We study the effect of algebraically localized impurities on striped phases in one space-dimension. We therefore develop a functional-analytic framework which allows us to cast the perturbation problem as a regular Fredholm problem despite the presence of essential spectrum, caused by the soft translational mode. Our results establish the selection of jumps in wavenumber and phase, depending on...
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We prove that a system of discrete two-dimensional 2D in-plane dipoles with four possible orientations, interacting via a three-dimensional 3D dipole-dipole interaction plus a nearest neighbor ferromagnetic term, has periodic striped ground states. As the strength of the ferromagnetic term is increased, the size of the stripes in the ground state increases, becoming infinite, i.e., giving a fer...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2013
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/30/15/155025