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High entropy alloy(HEA) films of CrFeCoNiCu were prepared by sputtering, their structure was characterized, and their electric properties measured by temperature dependent Hall and Seebeck measurement. The HEA films show a solid solution…

We show that the magnetic properties of high-entropy alloys (HEAs) can be captured by \textit{ab initio} calculations within the coherent potential approximation, where the atomic details of the high-entropy mixing are considered as an…

材料科学 · 物理学 2025-12-30 Dinesh Bista , Willie B. Beeson , Turbasu Sengupta , Jerome Jackson , Shiv N Khanna , Kai Liu , Gen Yin

High-entropy alloys (HEA) form through the random arrangement of five or more chemical elements on a crystalline lattice. Despite the significant amount of resulting compositional disorder, a subset of HEAs enters a superconducting state…

超导电性 · 物理学 2021-11-23 Casey K. W. Leung , Xiaofu Zhang , Fabian von Rohr , Rolf Lortz , Berthold Jäck

High entropy alloys (HEAs) are multi-principal-element alloys designed for tailorable mechanical performance and have been attracting significant engineering interest, yet their fundamental behaviour under extreme dynamic conditions, such…

We report on the perpendicular magnetic anisotropy (PMA) behavior of heavy metal (HM)/ Fe alloy/MgO thin film heterostructures after an ultrathin HfO2 passivation layer is inserted between the Fe alloy and the MgO. This is accomplished by…

材料科学 · 物理学 2017-05-10 Yongxi Ou , D. C. Ralph , R. A. Buhrman

Magnetic insulators are important materials for a range of next generation memory and spintronic applications. Structural constraints in this class of devices generally require a clean heterointerface that allows effective magnetic coupling…

The authors developed a preparation technique of Co_2FeSi full-Heusler alloy films with the L2_1-ordered structure on silicon-on-insulator (SOI) substrates, employing rapid thermal annealing (RTA). The Co_2FeSi full-Heusler alloy films were…

材料科学 · 物理学 2010-05-26 Yota Takamura , Ryosho Nakane , Hiro Munekata , Satoshi Sugahara

High entropy alloys (HEA) show promise as a new type of high-performance structural material. Their vast degrees of freedom provide for extensive opportunities to design alloys with tailored properties. However, the compositional…

无序系统与神经网络 · 物理学 2019-04-19 Qi Jie , Andrew Cheung , S. Joseph Poon

Magnetic high entropy alloys (HEAs) are a new category of high-performance magnetic materials, with multi-component concentrated compositions and complex multi-phase structures. Although there have been numerous reports of their interesting…

High entropy alloys (HEAs) are promising magnetocaloric materials with tunable operating temperature conditions using compositional modifications. Here, we combine experiments and first principles based spin modelling to engineer…

High-entropy alloys (HEAs) are potential candidates for applications as refractory materials. While dual-phase refractory HEAs containing an ordered phase exhibit high hardness, there is high interest in developing intermetallic-free and…

材料科学 · 物理学 2024-12-30 Shivam Dangwal , Kaveh Edalati

Epitaxial thin films of REBa2Cu3O7-d (RE123, RE: rare earth) having a high entropy (HE) RE site were successfully fabricated on a SrTiO3 substrate by the pulsed laser deposition method. One to five RE elements are solved at the RE site,…

Ultrathin L1$_0$ films with different $c$-axis orientations relative to the film plane are promising candidates for data storage materials. In this work, within the framework of density functional theory, we calculated the magnetic…

材料科学 · 物理学 2023-12-13 Joanna Marciniak , Mirosław Werwiński

We have achieved (001) oriented L10 (Fe1-xCux)55Pt45 thin films, with magnetic anisotropy up to 3.6x10^7 erg/cm^3, using atomic-scale multilayer sputtering and post annealing at 400 {\deg}C for 10 seconds. By fixing the Pt concentration,…

10 nm and 50 nm Co$_{2}$FeAl (CFA) thin films have been deposited on MgO(001) and Si(001) substrates by magnetron sputtering and annealed at different temperatures. X-rays diffraction revealed polycrystalline or epitaxial growth (according…

材料科学 · 物理学 2014-07-30 M. Belmeguenai , H. Tuzcuoglu , M. S. Gabor , T. Petrisor , C. Tuisan , F. Zighem , S. M. Chérif , P. Moch

We present the fascinating magnetic properties in homogenous noble-metal-free and rare-earth-free L10-Mn1.5Ga epitaxial films on GaAs (001), including ultrahigh perpendicular coercivity remarkably tunable from 8.1 to 42.8 kOe, giant…

材料科学 · 物理学 2012-10-09 Lijun Zhu , Shuaihua Nie , Kangkang Meng , Dong Pan , Jianhua Zhao , Houzhi Zheng

Perpendicular magnetic anisotropy (PMA) in ultrathin magnetic structures is a key ingredient for the development of electrically controlled spintronic devices. Due to their relatively large spin-polarization, high Curie temperature and low…

材料科学 · 物理学 2019-10-30 M. S. Gabor , M. Nasui , A. Timar-Gabor

Thin ferromagnetic films with in-plane magnetic anisotropy are promising materials for obtaining high microwave permeability. The paper reports on the M\"ossbauer study of the field induced in-plane uniaxial anisotropy in electro-deposited…

材料科学 · 物理学 2011-09-22 Zhiwei Li , Xu Yang , Haibo Wang , Xin Liu , Fashen Li

High-entropy alloys (HEAs) combine compositional disorder with exceptional functional tunability, yet their inherently high-density limits use in lightweight systems. Here, we introduce entropy-architected nanowire metamaterials, a class of…

The successful synthesis of high entropy alloy (HEA) nanoparticles, a long-sought goal in materials science, opens a new frontier in materials science with applications across catalysis, electronics, structural alloys, and energetic…

材料科学 · 物理学 2021-05-27 Wissam A. Saidi , Waseem Shadid , Götz Veser
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