In this work, we show a line-shape analysis of the resonant Raman scattering spectrum of un-doped CdTe single crystal. We found that the main peak correspondent to the longitudinal-optic (LO) phonon mode is asymmetrically broadened toward the high-frequency side. We attributed this asymmetry to an electron-phonon coupling effect, which was demonstrated using a Fano-type function to describe the spectrum

A core/shell geometric structure is described by ferrimagnetic mixed spin square Blume-Capel Ising nanowire, using MMFM, i.e., molecular mean field method, or rather self-consistent field theory. In this model, antiferromagnetic forms are allowed to spin interactions, i.e. the nearest neighbors. We tested the influence of crystal and external magnetic fields on a ferrimagnetic mixed spin-1 and spin-5/2

Developing hydrogels with optimal properties for specific applications is challenging as most of these properties, such as toughness, stiffness, swelling or deformability, are interrelated. The improvement of one property usually comes at the cost of another. In order to decouple the interdependence between these properties and to extend the range of material properties for hydrogels, we propose a

It has recently been shown that in a broad class of disordered systems oscillatory shear training can embed memories of specific shear protocols in relevant physical parameters such as the yield strain. These shear protocols can be used to change the physical properties of the system and memories of the protocol can later be “read” out. Here we investigate shear training memories in colloidal gels

A generalized rigorous Floquet scattering-matrix method for stratified anisotropic optical media, subject to a periodic spatio-temporal modulation, is formulated and implemented. The method is applied for studying an optomagnonic cavity formed by an in-plane magnetized ferrite film, in which a magnetostatic surface spin wave propagates, sandwiched between two nonmagnetic dielectric Bragg mirrors. Our

We present a general quantum kinetic theory that accounts for the interplay between a temperature gradient, momentum-space Berry curvatures of Bloch electrons, and Bloch-state scattering. Using a theory that incorporates the presence of a temperature gradient by introducing a "thermal vector potential", we derive a quantum kinetic equation for Bloch electrons in the presence of disorder and a temperature

Existence of a topological Dirac nodal loop is predicted for hydrogenated monolayer boron sheets with a non-symmorphic symmetry. The three-center two-electron bonds in boron compounds restrict the electronic system to be insulating or semi-metallic with a Dirac nodal loop. Two types of electronic structures are distinguished by ℤ2 topological index, and confirmed by first-principles total-energy calculations

The search for superconducting hydrides has, so far, largely focused on finding materials exhibiting the highest possible critical temperatures (Tc). This has led to a bias towards materials stabilised at very high pressures, which introduces a number of technical difficulties in experiment. Here we apply machine learning methods in an effort to identify superconducting hydrides which can operate closer

Using density functional theory based first-principles calculations, we predict the dynamically stable 1H-phase of a Janus single-layer composed of S-Mo-O atomic layers. It is an indirect band gap semiconductor exhibiting strong polarization arising from the charge difference on the two surfaces. In contrast to 1H-phases of MoS2 and MoO2, Janus MoSO is found to possess four Raman active phonon modes

More than 30 years ago, Malozemoff (Phys. Rev. B 35 , 3679 (1987)) hypothesized that exchange interaction at the interface between a ferromagnet (F) and an antiferromagnet (AF) can act as an effective random field, which can profoundly affect the magnetic properties of the system. However, until now this hypothesis has not been directly experimentally tested. We utilize magnetoelectronic measurements

Magnetic noise from randomly fluctuating nuclear spin ensembles is the dominating source of decoherence for many multi-quantum-dot multielectron spin qubits. Here we investigate in detail the effect of a DC electric current on the coupled electron-nuclear spin dynamics in double and triple quantum dots tuned to the regime of Pauli spin blockade. We consider both systems with and without significant

A large anomalous Hall effect (AHE) has been observed in ferromagnetic Fe3Sn2 with breathing kagome bilayers. To understand the underlying mechanism for this, we investigate the electronic structure of Fe3Sn2 by angle-resolved photoemission spectroscopy (ARPES). In particular, we use both of vacuum ultraviolet light (VUV) and soft X-ray (SX), which allow surface- and relatively bulk-sensitive measurements

Optical pump-probe time- and magnetic-field-resolved Kerr rotation measurements provide a window into the mechanisms that generate dynamic nuclear polarization in bulk gallium arsenide. Previously, we have reported an unexpected dependence of the direction of the nuclear polarization on the sweep direction of the applied external magnetic field. In this paper, we present numerical calculations based

Topological transition-metal dichalcogenides have been the centre of research interests in materials science, recent days, due to their potential applications in spintronics, optoelectronics, and quantum computations. In this paper, using angle resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations we systematically studied the low-energy electronic structure of

Correction for ‘Multi-scale microporous silica microcapsules from gas-in water-in oil emulsions’ by Zenon Toprakcioglu et al., Soft Matter, 2020, DOI: 10.1039/c9sm02274k.

The transmission and reflection of a spin wave at an internal boundary created by the local variation of anisotropy (or a bias magnetic field) are studied taking into account not only the changes in the wave amplitude, but also the changes in the wave polarization. It is shown, that the account of the changes in the spin wave polarization before and after the boundary leads to: (i) increase of the

First principles density functional theory (DFT) with the time-dependent Bethe-Salpeter Equation (BSE) is used to calculate the second harmonic generation (SHG) spectra of five trigonal prismatic (2H-phase) transition metal dichalcogenide (TMD) monolayers, MoS2, MoSe2, WS2, WSe2, and MoTe2, as a function of biaxial and uniaxial strain. It is shown that it is important to take excitonic effects into

We describe the ground- and excited-state electronic structure of bulk MnO and NiO, two prototypical correlated electron materials, using coupled cluster theory with single and double excitations (CCSD). As a corollary, this work also reports the first implementation of unrestricted periodic ab initio equation-of motion CCSD. Starting from a Hartree-Fock reference, we find fundamental gaps of 3.46

The extremely large magnetoresistance (XMR) effect in nonmagnetic semimetals have attracted intensive attention recently. Here we propose an XMR candidate material SrPd based on first-principles electronic structure calculations in combination with a semi-classical model. The calculated carrier densities in SrPd indicate that there is a good electron-hole compensation, while the calculated intrinsic

We propose and demonstrate first steps towards schemes where the librational mode of levitating ferromagnets can be strongly coupled to the electronic spin of Nitrogen-Vacancy (NV) centers in diamond. Experimentally, we levitate soft ferromagnets in a Paul trap and employ magnetic fields to attain oscillation frequencies in the hundreds of kHz range with Q factors close to 104. These librational frequencies

We study the optical reflectivity of three-dimensional (3D) photonic band gap crystals with increasing thickness. The crystals consist of GaAs plates with nanorod arrays that are assembled by an advanced stacking method into high-quality 3D woodpile structures. We observe intense and broad reflectivity peak with stop bands that correspond to a broad gap in the photonic band structures. The maximum

Room temperature optically detected magnetic resonance experiments on spin 3/2 Silicon vacancies in 4H-SiC are reported. The ms=+1/2↔−1/2 transition is accessed using a two microwave frequency excitation protocol. The ratio of the Rabi frequencies of the +3/2↔+1/2 and +1/2↔−1/2 transitions is measured to be (0.901±0.013). The deviation from 3/2 is attributed to small difference in g-factor for different

Recently anomalous Hall effect was predicted as a possible mechanism to produce magnetization-dependent spin current. Here we have applied NiFe/Ru/perpendicular magnetic multilayers and a specific geometry to demonstrate magnetization switching driven by anomalous spin-orbit torque resulting from the bulk anomalous Hall effect. The anomalous spin Hall torque of NiFe not only strong enough to switch

We consider spontaneous symmetry breaking transitions of strongly interacting two-dimensional Dirac fermions minimally coupled to mass and emergent gauge field order parameters. Using a renormalization group analysis, we show that the presence of gauge fields leads to novel fermion induced quantum (multi-)criticality where the putative emergent Lorentz invariance is violated. We illustrate this with

The remarkable increase in the flow resistance of dense suspensions can hinder 3D-printing processes on account of flow cessation in the extruder, and filament fragility/rupture following deposition. Understanding the nature of rheological changes that occur is critical to manipulate flow conditions or to dose flow modifiers for 3D-printing. Therefore, this paper elucidates the influences of clay particulates

We present a molecular dynamics simulation study of the phase diagram and melting scenarios of two-dimensional Hertzian spheres with exponent 7/2. We have found multiple re-entrant melting of a single crystal with a triangular lattice in a wide range of densities from 0.5 to 10.0. Depending on the position on the phase diagram, the triangular crystal has been shown to melt through both two-stage melting

This study aims to provide a fundamental understanding of the morphological transition of film buckling–delamination in an elastomeric bilayer spherical shell system. We developed an experimental system in which surface delamination buckles emerge because of biaxial compression of the elastomeric bilayer spherical shell driven by an air-pressured (pneumatic) device. A flat PDMS plate was first isotropically

We performed an ultrasonic measurement for the heavy-fermion compound CeRhIn5 to investigate the origin of the field-induced anisotropic phase in high magnetic fields. The transverse elastic constant CT=(C11−C12)/2 and the ultrasonic attenuation coefficient αT show clear anomaly at B⋆=28.5 T, which was discussed as the electronic nematic transition point. In addition, CT exhibits acoustic de Haas-van

Motivated by recent experimental studies that have found signatures of a correlated insulator phase and tuning superconductivity in twisted bilayer graphene, we study the temperature-dependent conductivity, the spin correlation and the superconducting pairing correlation within a two-orbital Hubbard model on an emergent honeycomb lattice. The evaluation of the temperature dependence of the conductivity