Results 41 to 50 of about 5,404 (201)

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Magnetic and Thermoelectric properties of RbCaYF(Y= C and N) Heusler alloys: Promising Candidates for Embedded Systems in Telecommunications

East European Journal of Physics
On the basis of density functional theory, the structural, electronic, magnetic and thermoelectric properties of the d0 new quaternary Heusler alloys RbCaYF (Y= C and N) have been analyzed by means of first-principles calculations.
Kheira Bahnes, Saliha Rezini, Amel Abbad, Wissam Benstaali, Noureddine Saidi, Omar Belarbi   +5 more
doaj   +1 more source

Thermoelectric transport trends in group 4 half-Heusler alloys [PDF]

Journal of Applied Physics, 2019
The thermoelectric properties of 54 different group 4 half-Heusler (HH) alloys have been studied from first principles. Electronic transport was studied with density functional theory using hybrid functionals facilitated by the k⋅p method, while the temperature-dependent effective potential method was used for the phonon contributions to the figure of ...
Kristian Berland, Nina Shulumba, Olle Hellman, Clas Persson, Ole Martin Løvvik   +4 more
openaire   +5 more sources

Conventional Half-Heusler alloys advance state-of-the-art thermoelectric properties

Materials Today Physics, 2022
Half-Heusler (HH) phases have garnered much attention as thermally stable and non-toxic thermoelectric materials for power conversion. The most studied alloys to date utilize Hf, Zr, and Ti as the base components. These alloys can achieve a moderate dimensionless figure of merit, ZT, near 1.
Mousumi Mitra, Allen Benton, Md Sabbir Akhanda, Jie Qi, Mona Zebarjadi, David J. Singh, S. Joseph Poon   +6 more
openaire   +2 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Defects-driven appearance of half-metallic ferrimagnetism in Co-Mn--based Heusler alloys

, 2007
Half-metallic ferromagnetic full-Heusler alloys containing Co and Mn, having the formula Co$_2$MnZ where Z a sp element, are among the most studied Heusler alloys due to their stable ferromagnetism and the high Curie temperatures which they present ...
Aktas, B., Galanakis, I., Ozdogan, K., Sasioglu, E.   +3 more
core   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Role of defects and disorder in the half-metallic full-Heusler compounds

, 2007
Half-metallic ferromagnets and especially the full-Heusler alloys containing Co are at the center of scientific research due to their potential applications in spintronics.
A Bergmann, A Continenza, A Stroppa, B Sanyal, BG Liu, C Hordequin, C Jiang, CT Tanaka, CY Fong, E asıoğlu, E asıoğlu, F Heusler, H Akai, H Akinaga, H Itoh, H Kato, H van Leuken, HM Kandpal, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I Galanakis, I. Galanakis, J Grabis, J Grabis, J Pierre, J Schmalhorst, J Tobola, J Tobola, J Tobola, J-C Zheng, J-H Park, JA Caballero, JE Pask, JH Zhao, JH Zhao, JP Perdew, K Koepernik, K Koepernik, K Ono, K Watanabe, KA Kilian, KÖ zdoğan, KÖ zdoğan, KÖ zdoğan, KÖ zdoğan, KÖ zdoğan, M Horne, M Kallmayer, M Ležaić, M Mizuguchi, M Mizuguchi, M Mizuguchi, M Nagao, M Sargolzaei, M Shirai, M Shirai, M Zhang, P Hohenberg, P Mavropoulos, P Mavropoulos, P Mavropoulos, PH Dederichs, R Weht, RA de Groot, RA de Groot, RJ Soulen Jr., S Datta, S Ishida, S Ishida, S Kämmerer, S Picozzi, S Picozzi, S Sanvitom, T Shishidou, W Kohn, W-H Xie, W-H Xie, XY Dong, Y Miura, Y Sakuraba, Y Yoshida, YQ Xu   +94 more
core   +1 more source

Ab-initio design of half-metallic fully-compensated ferrimagnets: the case of Cr$_2$MnZ (Z= P, As, Sb, Bi) compounds [PDF]

, 2007
Electronic structure calculations from first-principles are employed to design some new half-metallic fully-compensated ferrimagnets (or as they are widely known half-metallic antiferromagnets) susceptible of finding applications in spintronics.
Aktas, B., Galanakis, I., Ozdogan, K., Sasioglu, E.   +3 more
core   +2 more sources

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source