Results 51 to 60 of about 672,845 (214)

Giant elastocaloric effect and exceptional mechanical properties in an all-d-metal Ni–Mn–Ti alloy: Experimental and ab-initio studies

open access: yesMaterials & Design, 2019
Exploring novel materials with superior elastocaloric effect (eCE) is a central issue for the development of eCE refrigeration technique. In this work, we report a giant adiabatic temperature change ΔTad of −20.4 K in the 〈100〉-textured all-d-metal ...
Hai-Le Yan   +10 more
doaj   +1 more source

Renormalization of the tunnel splitting in a rotating nanomagnet

open access: yes, 2010
We study spin tunneling in a magnetic nanoparticle with biaxial anisotropy that is free to rotate about its anisotropy axis. Exact instanton of the coupled equations of motion is found that connects degenerate classical energy minima.
A. R. Edmonds   +7 more
core   +2 more sources

Anisotropy in antiferromagnets [PDF]

open access: yesJournal of Applied Physics, 2020
Due to the advent of antiferromagnetic (AF) spintronics, there is a burgeoning interest in AF materials for a wide range of potential and actual applications. Generally, AFs are characterized via the ordering at the Néel temperature (TN), but to have a stable AF configuration, it is necessary that the material has a sufficient level of anisotropy so as
K. O’Grady   +6 more
openaire   +4 more sources

Optimal design of high‐performance rare‐earth‐free wrought magnesium alloys using machine learning

open access: yesMaterials Genome Engineering Advances
In this study, a small dataset of 370 datapoints of Mg alloys are selected for machine learning (ML), in which each datapoint includes five rare‐earth‐free alloying elements (Ca, Zn, Al, Mn and Sn), three extrusion parameters (extrusion speed ...
Shaojie Li   +6 more
doaj   +1 more source

Effects of heat treatment technology on microstructures and properties of 30Cr15NiMo martensitic stainless steel

open access: yesCailiao gongcheng
As an effective approach for improving the match of strength and ductility of martensitic stainless steel, the processing of quenching and partitioning (Q&P) is seldom implemented in industrial practice of commercial steels due to two factors: the one is
WANG Haixu   +3 more
doaj   +1 more source

Self-adapted clustering of solute atoms into a confined two-dimensional prismatic platelet with an ellipse-like quasi-unit cell

open access: yesIUCrJ, 2018
This paper reports a new structured prismatic platelet, self-assembled by an ellipse-like quasi-unit cell, precipitated in Mg–In–Yb and Mg–In–Ca ternary alloys and aged isothermally at 200°C using aberration-corrected high-angle annular dark-field ...
Hongbo Xie   +9 more
doaj   +1 more source

Surface contribution to the anisotropy of magnetic nanoparticles

open access: yes, 2002
We calculate the contribution of the Neel surface anisotropy to the effective anisotropy of magnetic nanoparticles of spherical shape cut out of a simple cubic lattice.
D. A. Garanin, H. Kachkachi, L. Néel
core   +1 more source

Dielectric magnetochiral anisotropy

open access: yesNature Communications, 2022
AbstractThe combination of chirality and magnetism has steadily grown over the last decennia into an area of intense research. Magnetochiral anisotropy, chirality-induced spin-selectivity and helimagnetism are the most prominent phenomena resulting from this combination, touching different systems like topological (semi-)metals and insulators, quantum ...
Rikken, Geert, Avarvari, Narcis
openaire   +5 more sources

Metallic Bond Induces Soft Phonon Mode and Anharmonicity in Heusler Alloy

open access: yesAdvanced Science
The fruitful functional performances of metastable Heusler alloys originate from the martensitic transformation driven by the transverse acoustic soft phonon mode, regulated by anharmonicity. However, the origins of the soft mode and the anharmonicity in
Hao‐Xuan Liu   +6 more
doaj   +1 more source

Perpendicular magnetic anisotropy of two-dimensional Rashba ferromagnets

open access: yes, 2016
We compute the magnetocrystalline anisotropy energy within two-dimensional Rashba models. For a ferromagnetic free-electron Rashba model, the magnetic anisotropy is exactly zero regardless of the strength of the Rashba coupling, unless only the lowest ...
Kim, Kyoung-Whan   +3 more
core   +1 more source

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