# Frustrated spin ladder with alternating spin-1 and spin-1/2 rungs

@article{Chandra2010FrustratedSL,
title={Frustrated spin ladder with alternating spin-1 and spin-1/2 rungs},
author={V. Chandra and N. Ivanov and J. Richter},
journal={Physical Review B},
year={2010},
volume={81},
pages={024409}
}
• Published 2010
• Physics
• Physical Review B
We study the impact of the diagonal frustrating couplings on the quantum phase diagram of a two-leg ladder composed of alternating spin-1 and spin-$\frac{1}{2}$ rungs. As the coupling strength is increased the system successively exhibits two gapped paramagnetic phases (a rung-singlet and a Haldane-type nondegenerate states) and two ferrimagnetic phases with different ferromagnetic moments per rung. The first two states are similar to the phases studied in the frustrated spin-$\frac{1}{2… Expand 6 Citations #### Figures from this paper Interplay between spin frustration and magnetism in the exactly solved two-leg mixed spin ladder • Physics • 2016 We study a mixed spin-(3/2, 1) ladder system with antiferromagnetic rung coupling and next-nearest-neighbor interaction. The exactly solved Ising-chain model is employed to investigate theExpand Quantum phase transitions in alternating spin-(1/2, 5/2) Heisenberg chains. • Physics, Medicine • Journal of physics. Condensed matter : an Institute of Physics journal • 2011 The ground state spin-wave excitations and thermodynamic properties of two types of ferrimagnetic chains are investigated: the alternating spin-1/2 spin-5/2 chain and a similar chain with a spin-1/2Expand Magnetic properties of alternating Hubbard ladders • Physics • 2021 We investigate the Hubbard Hamiltonian on ladders where the number of sites per rung alternates between two and three. These geometries are bipartite with nonequal or equal number of sites on the twoExpand Charge and Orbital Orderings, and Frustration in Quasi-one-dimensional Ferrimagnetic Insulator$\beta$-V$_2$O(PO$_4$) • Physics • 2019 Using ab initio calculations based on the correlated band theory, we have investigated the quasi-one-dimensional chain system$\beta$-V$_2$O(PO$_4$), showing both charge and spin orderings. Even inExpand Dynamic phase transition properties for the mixed spin-(1/2, 1) Ising model in an oscillating magnetic field • Physics, Mathematics • 2014 We study the dynamic phase transition properties for the mixed spin-(1/2, 1) Ising model on a square lattice under a time-dependent magnetic field by means the effective-field theory (EFT) based onExpand Magnetic phase separation in a frustrated ferrimagnetic chain under a magnetic field • Physics • 2019 We use density matrix renormalization group to study the first-order quantum phase transition induced by a magnetic field$h$in a frustrated ferrimagnetic chain. The magnetization ($m$) curve as aExpand #### References SHOWING 1-10 OF 68 REFERENCES Antiferromagnetically coupled alternating spin chains • Physics • 2001 The effect of antiferromagnetic interchain coupling in alternating spin-(1,1/2) chains is studied by means of spin-wave theory and density-matrix renormalization group (DMRG). In particular, twoExpand Excitation spectrum of Heisenberg spin ladders. • Physics, Medicine • Physical review. B, Condensed matter • 1993 Strong-coupling perturbation theory, spin-wave theory, Lanczos techniques, and a Monte Carlo method are applied to determine the ground-state energy and the low-lying excitation spectrum of the spin-1/2 ladder. Expand Phase diagram of a frustrated mixed-spin ladder with diagonal exchange bonds • Physics • 2004 Using exact numerical diagonalization and the conformal field theory approach, we study the effect of magnetic frustrations due to diagonal exchange bonds in a system of two coupled mixed-spinExpand Low-lying excited states and low-temperature properties of an alternating spin-1-spin-1/2 chain: A density-matrix renormalization-group study • Physics • 1997 We report spin wave and density-matrix renormalization-group (DMRG) studies of the ground and low-lying excited states of uniform and dimerized alternating spin chains. The DMRG procedure is alsoExpand Antiferromagnetic sawtooth chain with spin-1/2 and spin-1 sites • Physics • 2004 We study the low-energy properties of a sawtooth chain with spin-1's at the bases of the triangles and spin-$\frac{1}{2}\mathrm{'}\mathrm{s}$at the vertices of the triangles. The spins haveExpand Spin-wave series for quantum one-dimensional ferrimagnets Second-order spin-wave expansions are used to compute the ground-state energy and sublattice magnetizations of the quantum one-dimensional Heisenberg ferrimagnet with nearest-neighborExpand Magnetic phase diagram of a frustrated ferrimagnetic ladder: Relation to the one-dimensional boson Hubbard model • Physics • 2006 We study the magnetic phase diagram of two coupled mixed-spin$(1,{1/2})\$ Heisenberg chains as a function of the frustration parameter related to diagonal exchange couplings. The analysis isExpand
Spin models of quasi-1D quantum ferrimagnets with competing interactions
We present a brief survey of the recent theoretical work related to generic Heisenberg spin models describing quasi-one-dimensional quantum ferrimagnets. The emphasis is on quantum chains and laddersExpand
Magnetization Plateau in the Frustrated Alternating Spin Chain
We study the magnetization plateau at m =1/2 in the S =1/2 and S =1 alternating spin Heisenberg chain with two next-nearest-neighbor (NNN) interactions J a between neighboring S =1/2 spins and J bExpand
Search for quantum dimer phases and transitions in a frustrated spin ladder
• Physics
• 2006
A two-leg spin-1/2 ladder with diagonal interactions is investigated numerically. We focus our attention on the possibility of columnar dimer phase, which was recently predicted based on aExpand