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We study the interplay of topological excitations in stripe phases: charge dislocations, charge loops, and spin vortices. In two dimensions these defects interact logarithmically on large distances. Using a renormalization-group analysis in…

凝聚态物理 · 物理学 2009-11-07 Frank Krüger , Stefan Scheidl

A largely descriptive survey is given of the ordered phases of doped antiferromagnets, and of the long wavelength properties that can be derived from an order-parameter theory. In particular, we show that the competition between the…

凝聚态物理 · 物理学 2007-05-23 S. A. Kivelson , V. J. Emery

The correlation between charge and spin orderings in hole-doped antiferromagnets is studied within an effective model of quantum strings fluctuating in an antiferromagnetic background. In particular, we perform the direct estimation of the…

强关联电子 · 物理学 2009-11-10 Chitoshi Yasuda , Akihiro Tanaka , Xiao Hu

In this work we investigate the phase diagram of heavy (4d and 5d) transition metal oxides on the pyrochlore lattice, such as those of the form $\mathrm{A_2M_2O_7}$, where A is a rare earth element and M is a transition metal element. We…

强关联电子 · 物理学 2015-03-17 Mehdi Kargarian , Jun Wen , Gregory A. Fiete

In their Letter (Phys. Rev. Lett. 83, 5118 (1999)), den Brink, Khaliullin, and Khomskii proposed theoretically that the one-dimensional ferromagnetic zigzag chains in CE phase in half-doped manganites play an essential role in forming the…

强关联电子 · 物理学 2009-11-07 Shun-Qing Shen

If spin liquids have been famously defined by what they are not, i.e. ordered, the past years have seen the frontier between order and spin liquid starting to fade, with a growing number of materials whose low-temperature physics cannot be…

强关联电子 · 物理学 2016-02-09 Ludovic D. C. Jaubert

We study theoretically formation of two-dimensional (2D) charge density wave (CDW) in a system of conducting chains at the surface of an insulator due to interaction of quasi 1D surface electrons with phonons. We show that the unscreened…

介观与纳米尺度物理 · 物理学 2015-10-01 P. Aseev , S. N. Artemenko

We investigate the role of long-range Coulomb interactions in $M$-valley moir\'es using the self-consistent Hartree-Fock approximation. This platform was recently proposed [Nature 643, 376 (2025) and arXiv:2411.18828 (2024)] as a new class…

介观与纳米尺度物理 · 物理学 2025-09-24 Christophe De Beule , Liangtao Peng , E. J. Mele , Shaffique Adam

In this study, we explore the impact of short-range antiferromagnetic correlations on the charge density wave (CDW) phase in strongly correlated electron systems exhibiting the pseudogap phenomenon. Our investigation employs a n-pole…

强关联电子 · 物理学 2024-11-27 Leonardo Prauchner , Eleonir Calegari , Julian Faundez , Sergio Magalhaes

Localized charged states and phase segregation are described in the framework of the phenomenological Ginzburg-Landau theory of phase transitions. The Coulomb interactions determines the charge distribution and the characteristic length of…

强关联电子 · 物理学 2009-11-13 V. V. Kabanov , R. F. Mamin , T. S. Shaposhnikova

By using long-range interacting polygons, we experimentally probe the coupling between particle shape and long-range interaction. For two typical space-filling polygons, square and triangle, we find two types of coupling modes that…

软凝聚态物质 · 物理学 2020-08-06 Can-can Zhou , Hongchuan Shen , Hua Tong , Ning Xu , Peng Tan

We study the emergence of charge ordered phases within a pi-loop current (piLC) model for the pseudogap based on a three-band model for underdoped cuprate superconductors. Loop currents and charge ordering are driven by distinct components…

超导电性 · 物理学 2016-05-17 W. A. Atkinson , A. P. Kampf , S. Bulut

The theory of first order density-driven phase transitions with frustration due to the long range Coulomb (LRC) interaction develop on paper I of this series is applied to the following physical systems: i) the low density electron gas ii)…

强关联电子 · 物理学 2016-08-31 J. Lorenzana , C. Castellani , C. Di Castro

We propose the origin of the charge-ordered stripe structure with the orbital ordering observed experimentally in La_(1-x)Ca_(x)MnO_(3) (x=1/2, 2/3), in which the long-range Coulomb interaction plays an essential role. We study a Hubbard…

强关联电子 · 物理学 2009-10-31 Tetsuya Mutou , Hiroshi Kontani

We investigate the influence of interference between Coulomb interaction and impurity scattering on the static electronic response $\chi (0,q)$ in disordered metals to leading order in the effective Coulomb interaction. When the transport…

凝聚态物理 · 物理学 2009-10-22 Johann Kroha , Andrea Huck , Thilo Kopp

We consider the equilibrium statistical properties of interfaces submitted to competing interactions; a long-range repulsive Coulomb interaction inherent to the charged interface and a short-range, anisotropic, attractive one due to either…

统计力学 · 物理学 2009-11-07 Sofian Teber

Effects of geometrical frustration in low-dimensional charge ordering systems are theoretically studied, mainly focusing on dynamical properties. We treat extended Hubbard models at quarter-filling, where the frustration arises from…

强关联电子 · 物理学 2007-05-23 Hitoshi Seo , Kenji Tsutui , Masao Ogata , Jaime Merino

We discuss the effects of fluctuations of the local density of charged dopants near a first order phase transition in electronic systems, that is driven by change of charge carrier density controlled by doping level. Using a generalization…

强关联电子 · 物理学 2009-11-07 Kun Yang

We consider a classical model of charges $\pm q$ on a pyrochlore lattice in the presence of long range Coulomb interactions. This model first appeared in the early literature on charge order in magnetite. In the limit where the interactions…

强关联电子 · 物理学 2015-06-17 Paul McClarty , Aroon O'Brien , Frank Pollmann

We study the competition between long- and short-range interactions among charge carriers in strongly-correlated electronic systems employing a new method which combines the density-matrix renormalization-group technique with a…

强关联电子 · 物理学 2009-10-31 E. Arrigoni , A. P. Harju , W. Hanke , B. Brendel , S. A. Kivelson