Results 11 to 20 of about 319,180 (281)
Dynamics of the Distorted Diamond Chain [PDF]
Physical Review B, 2007 We present results on the dynamics of the distorted diamond chain, S=1/2 dimers alternating with single spins 1/2 and exchange couplings $J_1$ and $J_3$ in between.
Luckmann, C., Mikeska, H. -J.
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Magnetic properties of modified diamond spin chain
Вісник Харківського національного університету: Серія xіміяThe work is devoted to the theoretical study of the energy spectrum and magnetic properties of the modified antiferromagnetic spin (1/2, s) diamond chain. This is a frustrated mixed spin system with the unit cells formed by two spin ½ and one spin s>1/2.
Vladyslav Cheranovskii, Vlada Maliarchuk
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Exact many-electron ground states on the diamond Hubbard chain [PDF]
Physical Review Letters, 2007 Exact ground states of interacting electrons on the diamond Hubbard chain in a magnetic field are constructed which exhibit a wide range of properties such as flat-band ferromagnetism and correlation induced metallic, half-metallic or insulating behavior.
Arno Kampf +3 more
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Interacting spinless fermions in a diamond chain [PDF]
Physical Review B, 2011 We study spinless fermions in a flux threaded AB$_2$ chain taking into account nearest-neighbor Coulomb interactions. The exact diagonalization of the spinless AB$_2$ chain is presented in the limiting cases of infinite or zero nearest-neighbor Coulomb ...
Dias, R. G., Lopes, A. A.
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Impurity flat band states in the diamond chain
Communications PhysicsFlat band (FB) systems, featuring dispersionless energy bands, have garnered significant interest due to their compact localized states (CLSs). However, a detailed account on how local impurities affect the physical properties of overlapping CLSs is ...
A. M. Marques +3 more
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Diamond chains with multiple-spin exchange interactions [PDF]
Physical Review B, 2009 We study the phase diagram of a symmetric spin-1/2 Heisenberg diamond chain with additional cyclic four-spin exchange interactions. The presented analysis supplemented by numerical exact-diagonalization results for finite periodic clusters implies a rich
J. Richter +4 more
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Geometrical frustration of an extended Hubbard diamond chain in the quasi-atomic limit [PDF]
Physical Review E, 2012 We study the geometrical frustration of extended Hubbard model on diamond chain, where vertical lines correspond to the hopping and repulsive Coulomb interaction terms between sites, while the rest of them represent only the Coulomb repulsion one.
Ananikian, N. S. +2 more
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Magnetization Plateau of the Distorted Diamond Spin Chain [PDF]
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019), 2020 The frustrated quantum spin system on the distorted diamond chain lattice is investigated using the numerical diagonalization of finite-size clusters and the level spectroscopy analysis. In the previous work this system was revealed to exhibit the 1/3 magnetization plateau due to two different mechanisms depending on the coupling parameters, and the ...
Ueno, Yuki +4 more
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Practicality of Spin Chain Wiring in Diamond Quantum Technologies [PDF]
Physical Review Letters, 2013 Coupled spin chains are promising candidates for 'wiring up' qubits in solid-state quantum computing (QC). In particular, two nitrogen-vacancy centers in diamond can be connected by a chain of implanted nitrogen impurities; when driven by a suitable global fields the chain can potentially enable quantum state transfer at room temperature.
Ping, Y. +3 more
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The transverse field XY model on the diamond chain
Journal of Magnetism and Magnetic Materials, 2022 We consider the $s=1/2$ transverse field $XY$ model on the frustrated diamond chain, considering anisotropic exchange parameters between nearest-neighbor spins. To this end, we employ three different methodologies: mean-field approximations, and state-of-the-art exact diagonalizations (ED), and density matrix renormalization group (DMRG) simulations ...
Sérgio Mikael V.S. Rosa +3 more
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