Metal-insulator transition in the quarter-filled frustrated checkerboard lattice
نویسندگان
چکیده
منابع مشابه
Metal-insulator and insulator-insulator transitions in the quarter-filled band organic conductors.
The theory of the 2k F and 4k F instabilities in quarter-lled band organic conductors is revisited. The phase angles of the 2k F bond and charge density waves are shown to change as electron correlation is turned on, and this switching of the phase angle is critical for understanding the bond distortion patterns in the real materials. Intersite Coulomb interactions in the real materials must be...
متن کاملFinite-size scaling for Mott metal-insulator transition on a half filled nonpartite lattice
Ever since the experimental observations of the metallic behavior in two-dimensional electron gas with high-mobility Si metal-oxide-semiconductor field-effect transistor, there has been an intensive interest in the investigations of electronic transport properties in such systems. The significance of this discovery is that it has taken us to a different interaction regime where the electron cor...
متن کاملMetal Insulator Transition
Metal Insulator transition(MIT) is characterized by the conductivity which will be zero in the insulator phase. In this term paper, we focus on Mott insulator, and a simple theoritical way to describe this MIT is the Hubbard Model .Finally, we will look at the experiments of Mott insulator transition .
متن کاملSuperconductor-insulator transition in frustrated Josephson-junction arrays on a honeycomb lattice
The zero-temperature superconductor to insulator transition is studied in a selfcharging model of Josephson-junction arrays on a honeycomb lattice in an external magnetic field corresponding to f flux quantum per plaquette. Path integral Monte Carlo simulations of the equivalent (2+1)-dimensional classical model are used to study the phase transition and critical behavior. For f = 1/3, the tran...
متن کاملThe paired-electron crystal in the two-dimensional frustrated quarter-filled band.
The competition between antiferromagnetic and spin-singlet ground states within quantum spin models and the ½-filled band Hubbard model has received intense scrutiny. Here we demonstrate a frustration-induced transition from Néel antiferromagnetism to a spin-singlet state in the interacting ¼-filled band on an anisotropic triangular lattice. While the antiferromagnetic state has equal charge de...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 2005
ISSN: 1434-6028,1434-6036
DOI: 10.1140/epjb/e2005-00125-4