Controlling magnetostructural transition and magnetocaloric effect in multi-component transition-metal-based materials

Abstract

Influence of growth oxygen pressure on the electrical properties and phase transformation of the epitaxial (K,Na)NbO 3 -based lead-free ferroelectric films

Density functional theory study of energetics, local chemical environment and magnetic properties in a high-entropic MnNiSi0.2Ge0.2Sn0.2Al0.2Ga0.2 intermetallic magnet

“…Although the atomic positions occupied by the non-magnetic, X-site Si-and Ge-atoms are unambiguous in the compositionally complex (Mn,Fe,Ni) 66.7 (Si x Ge 1-x ) 33.3 intermetallic alloy series, the distributions of Mn, Fe and Ni in the M-and T-sites are still not clear. Data from density functional theory (DFT) calculations also reveal the non-trivial role of magnetic atoms occupying the M-and T-sites in impacting the magnetostructural properties of MTX intermetallic compounds [32,37,38]. Developing a fundamental understanding of properties impacted by site-specific multi-principal element substitutions is crucial to further advance the materials design and discovery efforts in this high-entropy intermetallic magnets search space.…”

Correlating Crystallography, Magnetism, and Electronic Structure Across Anhysteretic First-Order Phase Transition in Pr2In

“…High sensitivity to external influences, in turn, gives rise to a number of functionalities, such as giant magnetostriction, colossal magnetoresistance, and giant caloric effects. 1,[4][5][6][7][8][9][10][11][12] For example, control of an FOPT in MnAs with hydrostatic pressure, originally explored by Goodenough et al, 13 was later exploited to demonstrate large barocaloric effects both in MnAs and Mn(As 1−x Sb x ) solid solution. 14 Considering that FOPTs in these compounds are between paramagnetic and ferromagnetic states, the transitions are susceptible to variations of magnetic field, and the materials also exhibit giant magnetocaloric effects.…”