(La,Ce)(Mn,Fe,Si)13-based compounds which show a giant magnetocaloric effect are potential materials for the cryogenic magnetic refrigeration. However, large hysteresis originating from first order magneto-elastic phase transition deteriorates cyclic performance of these materials, hindering their practical applications. In this work, Curie temperature (La1-xCex)y(MnzFe11.4-z)Si1.6 was tuned to...

electron paramagnetic resonance (epr) spectroscopy, also known as electron spin resonance(esr) especially among physicists, is a strong and versatile spectroscopic method forinvestigation of paramagnetic systems, i.e. systems like free radicals and most transition metalions, which have unpaired electrons. the sensitivity and selectivity of epr are notable andintriguing as compared to other spec...

Abstract Paramagnetic defects in diamond and hexagonal boron nitride possess a combination of spin optical properties that make them prototypical solid-state qubits. Despite the coherence these qubits being critically limited by spin-phonon relaxation, full understanding this process is not yet available. Here we apply ab initio dynamics simulations to problem quantitatively reproduce experimen...

Correction for ‘An in solution adsorption characterization technique based on the response to an external magnetic field of porous paramagnetic materials: application supramolecular metal–adenine frameworks containing heterometallic heptameric clusters’ by Jon Pascual-Colino et al. , Inorg. Chem. Front. 2023, https://doi.org/10.1039/d2qi01994a.

A three-dimensional phase-field model is proposed for simulating the magnetic martensitic phase transformation. The considers a paramagnetic cubic austenite to ferromagnetic tetragonal martensite transition, as it occurs in Heusler alloys like Ni2MnGa, and based on Landau 2-3-4 polynomial with temperature dependent coefficients. paramagnetic–ferromagnetic transition recaptured by interpolating ...

Because of their high electrical resistivity and high magnetic permeability, nickel–zinc ferrites are among the best soft magnetic materials for high-frequency applications. In this work, a precursor of nanostructured (Ni0.5Zn0.5)Fe2O4 was obtained by a sol–gel method modified for large quantity production. Six heat-treated samples were produced by calcining the precursor for 3 h at 450, 500, 6...

Within a mean-field approximation, the ground state and finite temperature phase diagrams of the two-dimensional Kondo lattice model have been carefully studied as functions of the Kondo coupling J and the conduction electron concentration [Formula: see text]. In addition to the conventional hybridization between local moments and itinerant electrons, a staggered hybridization is proposed to ch...

Titanium dioxide nanoparticles were synthesized by laser pyrolysis, their surface and electronic properties were modified by gold and/or nitrogen. These materials were characterized by different techniques like X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR). Time resolved conductivity (TRMC) was used to study the charge separation of el...

Magnetic CoFe2O4 nanoparticles were synthesized via a simple chemical reaction using precipitation method. The obtained materials consist of ferrite particles with average diameter of 25 nm. The effect of different surfactants such as cationic, anionic and neutral on the morphology of the products was investigated. Scanning electron microscopy was used to study the structure and particle size o...

692 nature materials | VOL 7 | SEPTEMBER 2008 | www.nature.com/naturematerials constructed chiral anionic layers based on the bridged metal centres. The synthesis involves a subtle enantioselective interaction between a solution of enantiopure cations and a racemic mixture (equal amounts of the two enantiomers) of the metallic components. The reaction leads to the formation of the desired enant...