Kitaev Quantum Spin Liquid Concept And Materialization

Concept and realization of Kitaev quantum spin liquids.
[PDF] Emergence of nontrivial magnetic excitations in a spin-liquid.
Concept and realization of Kitaev quantum spin liquids... | ORNL.
Concept and realization of Kitaev quantum spin liquids - Nature.
Kitaev quantum spin liquid concept and materialization.
Anderson–Kitaev spin liquid | npj Quantum Materials - Nature.
Kitaev Quantum Spin Liquid Revealed by Phonons.
Characterizing spin-one Kitaev quantum spin liquids.
Kitaev quantum spin liquid response in RuCl3 - Neutron Scattering.
New Bizarre State of Matter Seems to Split Fundamental Particles.
A new state of matter: Quantum spin liquids explained.
Kitaev quantum spin liquid - concept and materialization - CORE.

Concept and realization of Kitaev quantum spin liquids.

The Kitaev model 1 is one of the greatest examples of two-dimensional (2D) solvable models of quantum spin liquids (QSLs) 2, 3, 4, especially in the perspective of spin-orbital-entangled physics 5.

[PDF] Emergence of nontrivial magnetic excitations in a spin-liquid.

This article is about quantum physics. For the graph-theoretical concept, see Topological sort. Condensed matter physics; Phases · Phase transition · QCP: States of matter. Solid · Liquid · Gas · Plasma · Bose. Kitaev physics has recently attracted attention in condensed matter for its anticipated novel quantum spin liquid state. The thermal transport measurement is crucial for probing the novel features of charge-neutral quasiparticles.... a Kitaev quantum spin liquid candidate, when the magnetic field is applied along the out-of-plane direction of. A quantum spin liquid, or QSL, is a special kind of magnetic state that can only occur in particular types of materials. By observing changes in the quantum sound waves (phonons) traveling within a tiny sample of RuCl 3, the scientists were able to identify two distinct quantum excitations characteristic of a QSL.

Concept and realization of Kitaev quantum spin liquids... | ORNL.

Here, via extensive first-principles-based simulations, we report the investigation of the Kitaev physics and possible Kitaev QSL state in epitaxially strained Cr-based monolayers, such as CrSiTe 3, that rather possess a S = 3 / 2 spin value. Our study thus extends the playground of Kitaev physics and QSLs to 3 d transition metal compounds. Abstract. The Kitaev model is an exactly solvable S = 1/2 spin model on a 2D honeycomb lattice, in which the spins fractionalize into Majorana fermions and form a topological quantum spin liquid. The Kitaev model and quantum spin liquid The Kitaev model 21 consists of S = 1/2 spins on a honeycomb lattice, with nearest-neighbour Ising interactions with bond-dependent easy axes parallel to.

Concept and realization of Kitaev quantum spin liquids - Nature.

Abstract. Material realizations of the bond-dependent Kitaev interactions with S=1/2 local moments have vitalized the research in quantum spin liquids. Recently, it has been proposed that higher-spin analogs of the Kitaev interactions may also occur in a number of materials with strong spin-orbit coupling. In contrast to the celebrated S= 1/2. Title: Kitaev quantum spin liquid - concept and materialization Authors: Hidenori Takagi , Tomohiro Takayama , George Jackeli , Giniyat Khaliullin , Stephen E. Nagler (Submitted on 19 Mar 2019).

Kitaev quantum spin liquid concept and materialization.

The Kitaev model is an exactly solvable S = 1/2 spin model on a 2D honeycomb lattice, in which the spins fractionalize into Majorana fermions and form a topological quantum spin liquid (QSL) in the ground state. [1903.08081] (Review) Kitaev quantum spin liquid - concept and materialization (Takagi, Tomohiro Takayama, George Jackeli, Giniyat Khaliullin) [1903.07622] (Review) Heisenberg-Kitaev physics in magnetic fields (Vojta) [1903.07950] Discovery of High Dimensional Band Topology in Twisted Bilayer Graphene (Fan Zhang). A quantum spin liquid, or QSL, is a special kind of magnetic state that can only occur in particular types of materials. By observing changes in the quantum sound waves (phonons) traveling within a tiny sample of RuCl 3, the scientists were able to identify two distinct quantum excitations characteristic of a QSL. Tutorial Description.

Anderson–Kitaev spin liquid | npj Quantum Materials - Nature.

Nearly two decades ago, Alexei Kitaev proposed a model for spin-1/2 particles with bond-directional interactions on a two-dimensional honeycomb lattice which had the potential to host a quantum spin-liquid ground state. Hffner H, Hnsel W, Roos CF, Benhelm J, Chek-al-kar D, Chwalla M, Krber T, Rapol. It was soon recognized that a family of complex iridium oxides, as well as ruthenium chloride, with honeycomb structure are magnetic insulators and accommodate essential ingredients of the Kitaev model, due to the interplay of electron correlation and spin-orbit coupling. More information: A. Banerjee et al. Proximate Kitaev quantum spin liquid behaviour in a honeycomb magnet, Nature Materials (2016). DOI: 10.1038/nmat4604 Journal information: Nature Materials.

Kitaev Quantum Spin Liquid Revealed by Phonons.

We first summarize the theoretical background of the Kitaev QSL ground state and its materialization using spin-orbital-entangled = 1/2 moments. This is followed by an overview of candidate materials and their magnetic properties, including Na IrO, , , -Li IrO, -RuCl and H LiIr O.. A quantum spin liquid (QSL) is an exotic state of matter characterized by many-body quantum entanglement 1,2,3.In contrast to weakly entangled magnetic states, QSLs host emergent fractionalized.

Characterizing spin-one Kitaev quantum spin liquids.

Kitaev model is a quantum spin liquid with a Z 2 gauge structure. We are also able to put an upper bound on the excitation gap. The magnetic ﬁeld responses for the FM and AFM models are similar to those of the S = 1/2 counterparts. In particular, in the AFM S = 1 model, a gapless quantum spin-liquid state emerges in an. In 2006 Alexei Kitaev put forth an exactly solvable model of S=1/2 spins on a honeycomb lattice [1]. The ground state of this model is a quantum spin liquid (QSL) exhibiting Majorana fermion excitations. Subsequently Jackeli and Khaliullin showed how the Kitaev Hamiltonian might actually be realized in the laboratory [2]. This stimulated a great deal of experimental activity, initially on. Kitaev quantum spin liquid - concept and materialization. A decade ago, Alexei Kitaev proposed an exactly solvable = 1/2 model on a two-dimensional honeycomb lattice, where the spins fractionalize into Majorana fermions and form a topological quantum spin liquid (QSL) in the ground state. It was soon recognized that a family of complex iridium.

Kitaev quantum spin liquid response in RuCl3 - Neutron Scattering.

An overview of an exotic type of liquid. Materials with interacting quantum spins that nevertheless do not order magnetically down to the lowest temperatures are candidates for a materials class called quantum spin liquids (QSLs). QSLs are characterized by long-range quantum entanglement and are tricky to study theoretically; an even more. The Kitaev model is an exactly solvable S = 1/2 spin model on a 2D honeycomb lattice, in which the spins fractionalize into Majorana fermions and form a topological quantum spin liquid (QSL) in the ground state. Several complex iridium oxides, as well as α-RuCl 3, are magnetic insulators with a honeycomb structure, and it was noticed that they. A). Figure 2: Infidelity (a) and energy distance (b) between the variational and true Kitaev model GS, shown as a function of d for the final epoch out of 500. We consider J =−1, h= 0, and four system sizes N ={8,12,18,24}. (c) Infidelity at different epochs and N. d is chosen as the closest integer to N /6.

New Bizarre State of Matter Seems to Split Fundamental Particles.

One variety of QSL, a Kitaev spin liquid, has been predicted theoretically to exist on a " honeycomb" lattice. The Kitaev interaction forces spins connected by any given bond to point only along a single one of the principal axes of the structure, but the threefold symmetry of the honeycomb lattice means that this ' bond-dependent.

A new state of matter: Quantum spin liquids explained.

Kitaev's exact solution approximated. For 25 years of condensed matter science, physicists have searched for a material that realizes a macroscopic quantum state of matter: the quantum spin liquid. Abstract A decade ago, Alexei Kitaev proposed an exactly solvable $S$ = 1/2 model on a two-dimensional honeycomb lattice, where the spins fractionalize into Majorana fermions and form a topological. The Kitaev model is an exactly solvable S = 1/2 spin model on a 2D honeycomb lattice, in which the spins fractionalize into Majorana fermions and form a topological quantum spin liquid (QSL) in the ground state. Several complex iridium oxides, as well as α-RuCl3, are magnetic insulators with a honeycomb structure, and it was noticed that they accommodate essential ingredients of the Kitaev.

Kitaev quantum spin liquid - concept and materialization - CORE.

The Kitaev model and quantum spin liquid The Kitaev model 21 consists of S = 1/2 spins on a honeycomb lattice, with nearest-neighbour Ising. It was soon recognized that a family of complex iridium oxides, as well as ruthenium chloride, with honeycomb structure are magnetic insulators and accommodate essential ingredients of the Kitaev model.