Rucl3 Spin Liquid - HOUSESLOTS.NETLIFY.APP

Sub-gap optical response in the Kitaev spin-liquid candidate α-RuCl 3.
Phys. Rev. B 105, 094410 (2022) - Physical Review B.
Spin-phonon interactions in Quantum Spin Liquid Candidate α-RuCl3.
Excitations in the field-induced quantum spin liquid state.
Quantum spin liquid - Wikipedia.
Giant phonon anomalies in the proximate Kitaev quantum spin.
Phys. Rev. B 98, 060412(R) (2018) - Spin-wave analysis of the.
Anomalous and anisotropic nonlinear susceptibility in the.
[2201.04597] Intermediate Quantum Spin Liquid Phase in the.
Kitaev quantum spin liquid response in RuCl3 - Neutron Scattering.
Ferromagnetic Kitaev interaction and the origin of large.
New evidence for electron’s dual nature found in a quantum.
Proximate ferromagnetic state in the Kitaev model.

Sub-gap optical response in the Kitaev spin-liquid candidate α-RuCl 3.

.. A quantum spin liquid is an exotic quantum state of matter that does not exhibit any classical magnetic ordered ground state. The realization of such a state in actual materials is of significant importance as it would provide a path to protected states for quantum information applications and also to Majorana fermions - both areas of vigorous current activity and interest in condensed matter.

Phys. Rev. B 105, 094410 (2022) - Physical Review B.

The resulting quantum spin-liquid state is currently of intense interest because it exhibits unusual excitations as well as wave-function entanglement. The layered insulator α-RuCl3 orders as a zigzag antiferromagnet at low temperature in zero magnetic field4..

Spin-phonon interactions in Quantum Spin Liquid Candidate α-RuCl3.

Pseudoscalar U (1) spin liquids in. -RuCl. A recent experiment has reported oscillations of the thermal conductivity of -RuCl driven by an in-plane magnetic field that are reminiscent of the quantum oscillations in metals. At first glance, these observations are consistent with the presence of the long-sought-after spinon Fermi surface state.. The Kitaev quantum spin liquid (KQSL) is an exotic emergent state of matter exhibiting Majorana fermion and gauge flux excitations. The magnetic insulator α-RuCl3 is thought to realize a proximate KQSL. We used neutron scattering on single crystals of α-RuCl3 to reconstruct dynamical correlations in energy-momentum space. We discovered highly unusual signals, including a column of scattering.

Excitations in the field-induced quantum spin liquid state.

Fluctuations toward a Kitaev-type spin liquid would have the wrong sign to explain the data. However, a slight variant of a previously proposed model predicts a large ${\ensuremath{\kappa}}_{xy}$, demonstrating that the low-temperature thermal Hall effect could be generated exclusively by the Berry curvature of the magnon bands. Frustrated magnets with strong spin-orbit coupling promise to host topological states of matter, with fractionalized excitations and emergent gauge fields. Kitaev's proposal for a honeycomb-lattice Majorana spin liquid has triggered an intense search for experimental realizations, with bond-dependent Ising interaction being the essential building block. A prime candidate is $α$-RuCl$_3$ whose..

Quantum spin liquid - Wikipedia.

However, the nature of this putative spin liquid phase and the relevant microscopic model Hamiltonian remain still unclear. In this work, we address these questions by performing large-scale numerical simulations of a generalized Kitaev-Heisenberg model proposed to describe the physics of α−RuCl 3.

Giant phonon anomalies in the proximate Kitaev quantum spin.

. Α-RuCl3, a layered 2D material, was recently identified as a promising candidate for realizing a Kitaev quantum spin liquid. However one fundamental property, the crystal structure, has not been well resolved yet due to difficulty of bulk diffraction techniques caused by layer stacking faults. Having demystified the magnetic scattering and topological proximate QSL state in 2D α -RuCl 3, we focus on the temperature-driven evolution of magnetic continuum to inspect the layer dependent temperature that spin liquid correlations emerge. Figure 4 (a) shows the Raman intensity at low energy for 2 L, 3 L, 7 L and bulk.

Phys. Rev. B 98, 060412(R) (2018) - Spin-wave analysis of the.

Recently, α-RuCl 3 has attracted much attention as a possible material to realize the honeycomb Kitaev model of a quantum-spin-liquid state. Although the magnetic properties of α-RuCl 3 have been extensively studied, its electronic structure, which is strongly related to its Kitaev physics, is poorly understood. Here, the electronic structure of α-RuCl 3 was investigated by photoemission..

Anomalous and anisotropic nonlinear susceptibility in the.

The ORNL team has extensively studied the quantum spin liquid properties of ruthenium chloride. In a series of experiments extending over nearly three years, Czajka and Gao detected the temperature oscillations consistent with spinons with increasingly higher resolution, providing evidence that the electron is composed of two particles.

[2201.04597] Intermediate Quantum Spin Liquid Phase in the.

Α-RuCl 3 is drawing much attention as a promising candidate for the Kitaev quantum spin liquid 1, 2, 3, 4, 5, 6, 7, 8. However, despite intensive research efforts, controversy remains about the. The layered honeycomb lattice material α-RuCl 3 has emerged as a prime candidate for displaying the Kitaev quantum spin liquid state, and as such has attracted much research interest. Here a new layered honeycomb lattice polymorph of RuI 3, a material that is strongly chemically and structurally related to α-RuCl 3 is described. The U.S. Department of Energy's Office of Scientific and Technical Information.

Kitaev quantum spin liquid response in RuCl3 - Neutron Scattering.

In the proximate Kitaev spin liquid candidate, α-RuCl 3 neutron scattering experiments show a low-temperature magnetic excita-tion spectrum consisting of sharp spin wave peaks and a continuum associated with fractional excitations6,8. A magnetic transition that sets in at 7.5K where the spins assume a zig-zag. The Kitaev quantum spin liquid (KQSL) is an exotic emergent state of matter exhibiting Majorana Fermion and gauge flux excitations. The magnetic insulator α-RuCl3 is thought to realize a proximate KQSL. Here, we use neutron scattering on single crystals of α- RuCl3 to reconstruct dynamical correlations in energy-momentum space. This "Kitaev quantum spin liquid" supports magnetic excitations equivalent to Majorana fermions—particles that are unusual in that they are their own antiparticles. The presence of Majorana fermions is of great interest because of their potential use as the basis for a qubit, the essential building block of quantum computers. Familiar.

Ferromagnetic Kitaev interaction and the origin of large.

Pursuing the exotic quantum spin liquid (QSL) state in the Kitaev material $α$-RuCl$_3$ has intrigued great research interest recently. A fascinating question is on the possible existence of field-induced QSL phase in this compound. Here we perform a high-field measurement of the magnetization process of $α$-RuCl$_3$ up to 102 T employing the non-destructive and destructive pulsed magnets.

New evidence for electron’s dual nature found in a quantum.

Consequently, there has been enormous interest in exploring possible material realizations of Kitaev physics and several candidate materials have been put forward, recently including α-RuCl3. In the absence of a magnetic field this material orders at a finite temperature and exhibits low-energy spin wave excitations. Sub-gap optical response in the Kitaev spin-liquid candidate α-RuCl 3. J Phys Condens Matter. 2018 Nov 28;30(47):475604. doi: 10.1088/1361-648X/aae805.... One motivation is to unravel the microscopic nature of THz and spin-orbital excitations via a study of temperature and symmetry-induced changes. The optical studies are complemented by. The main aim of this review is to summarize experimental evidence obtained by THz spectroscopy and utilizing heat-capacity experiments, which point to the existence of fractionalized excitations in the spin-liquid state, which in -RuCl3 exists at temperatures just above the onset of magnetic order or at in-plane magnetic fields just beyond the.

Proximate ferromagnetic state in the Kitaev model.

This is confirmed through an analysis of the phonon linewidths, which show a related anomaly due to spin-phonon coupling. These observations are in line with theoretical expectations for the Heisenberg-Kitaev model and suggest that α−RuCl3 may be close to a quantum spin liquid ground state. Phys. Rev. Lett. 114, 147201 (2015). The material α-RuCl3 has been the subject of intense scrutiny as a potential Kitaev quantum spin liquid, predicted to display Majorana fermions as low-energy excitations. In practice, α-RuCl3 undergoes a transition to a state with antiferromagnetic order below a temperature TN≈7 K, but this order can be suppressed by applying an external in..