Results 51 to 60 of about 8,007 (208)

Active Learning‐Guided Accelerated Discovery of Ultra‐Efficient High‐Entropy Thermoelectrics

Advanced Materials, EarlyView.
An active learning framework is introduced for the accelerated discovery of high‐entropy chalcogenides with superior thermoelectric performance. Only 80 targeted syntheses, selected from 16206 possible combinations, led to three high‐performance compositions, demonstrating the remarkable efficiency of data‐driven guidance in experimental materials ...
Hanhwi Jang, Wooseok Lee, Hwa‐Jung Kim, Sohyang Cha, Hosun Shin, Won Bo Lee, Min‐Wook Oh, Yeon Sik Jung, YongJoo Kim   +8 more
wiley   +1 more source

Effect of interfacial strain on spin injection and spin polarization of Co2CrAl/NaNbO3/Co2CrAl magnetic tunneling junction

, 2012
First-principles calculations were carried out to investigate interfacial strain effects on spin injection and spin polarization of a magnetic tunnel junction consisting of half-metallic full-Heusler alloy Co2CrAl and ferroelectric perovskite NaNbO3 ...
Galanakis I. J., Inomata K., Ming Yang, Yamamoto M., Yongqing Cai, Yuan Ping Feng, Zhaoqiang Bai   +6 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

Termination layer compensated tunnelling magnetoresistance in ferrimagnetic Heusler compounds with high perpendicular magnetic anisotropy

Nature Communications, 2016
Heusler alloy thin films with a distorted tetragonal structure have potential spintronics applications given their bulk perpendicular magnetic anisotropy.
Jaewoo Jeong, Yari Ferrante, Sergey V. Faleev, Mahesh G. Samant, Claudia Felser, Stuart S. P. Parkin   +5 more
doaj   +1 more source

Slater-Pauling Behavior of the Half-Ferromagnetic Full-Heusler Alloys

, 2002
Using the full-potential screened Korringa-Kohn-Rostoker method we study the full-Heusler alloys based on Co, Fe, Rh and Ru. We show that many of these compounds show a half-metallic behavior, however in contrast to the half-Heusler alloys the energy gap
A. Deb, A. Matsushita, A.F. Tatarchenko, A.W. Carbonari, B. Drittler, B. Ravel, C.S. Lue, D. Brown, D. Jung, D. Ristoiu, E. Kulatov, F.Y. Yang, G. Lehman, G.A. Prinz, G.A. Prinz, G.A. Wijs, I. Galanakis, I. Galanakis, I. Galanakis, I. Galanakis, I. Galanakis, J. Giapintzakis, J. Kübler, J. Kübler, J.C. Suits, K.E.H.M. Hanssen, K.E.H.M. Hanssen, K.R.A. Ziebeck, L.P. Bouckaert, M. Gotoh, M. Pugacheva, M.N. Kirillova, M.P. Raphael, N. Papanikolaou, N. Papanikolaou, N. Stefanou, P. H. Dederichs, P. Lloyd, P. Lloyd, P. Turban, P.G. van Engen, P.J. Brown, P.J. Webster, R. Weht, R.A. de Groot, R.A. Dunlap, S. Fujii, S. Fujii, S. Ishida, S. Ishida, S. Ishida, S. Ishida, S. Jha, S. Picozzi, S. Plogmann, S.A. Wolf, S.H. Vosko, S.J. Jenkins, S.J. Jenkins, S.J. Youn, S.V. Halilov, T. Ambrose, T. Ambrose, T. Kanomata, U. Geiersbach, V.N. Antonov, W. Pendl, Jr., W. van Roy, X. Wang, Y. Nishino, Ye Feng   +70 more
core   +1 more source

Porous Bi2S3 Bulk With Excellent Thermoelectric Performance by Solid States Replacement and Low Melting‐Point Metal Volatilization

Advanced Materials, EarlyView.
By introducing FeCoNi medium‐entropy alloy, the bismuth sulfide (Bi2S3) material achieves a record‐high ZT of 1.1 at 773 K, owing to the solid‐states replacement reaction and the volatilization of low melting‐point metal. This strategy is also applicable to other sulfur‐based thermoelectric materials.
Zi‐Yuan Wang, Jun Guo, Yi‐Xin Zhang, Hao Liang, Xing Yang, Rafal E. Dunin‐Borkowski, Fengshan Zheng, Lei Jin, Jing Feng, Zhen‐Hua Ge   +9 more
wiley   +1 more source

A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant

AIP Advances, 2016
For half-Heusler alloys, the general formula is XYZ, where X can be a transition or alkali metal element, Y is another transition metal element, typically Mn or Cr, and Z is a group IV element or a pnicitide.
R. L. Zhang, L. Damewood, C. Y. Fong, L. H. Yang, R. W. Peng, C. Felser   +5 more
doaj   +1 more source

Relative Cooling Power Enhancement by Tuning Magneto-structural Stability in Ni-Mn-In Heusler Alloys

, 2018
Off-stoichiometric Ni$_2$MnIn Heusler alloys have drawn recent attention due to their large magnetocaloric entropy change associated with the first-order magneto-structural transition. Here we present crystal structural, calorimetric and magnetic studies
Bruno, Nickolaus M., Chen, Jing-Han, Huang, Yujin, Karaman, Ibrahim, Li, Jianguo, Ning, Zhenhua, Ross Jr, Joseph H., Shelton, William A.   +7 more
core   +1 more source

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

Magnetoelastic interactions and magnetic damping in Co2Fe0.4Mn0.6Si and Co2FeGa0.5Ge0.5 Heusler alloys thin films for spintronic applications

Scientific Reports, 2021
Co2Fe0.4Mn0.6Si (CFMS) and Co2FeGa0.5Ge0.5 (CFGG) Heusler alloys are among the most promising thin film materials for spintronic devices due to a high spin polarization, low magnetic damping and giant/tunneling magnetoresistance ratios.
O. M. Chumak, A. Pacewicz, A. Lynnyk, B. Salski, T. Yamamoto, T. Seki, J. Z. Domagala, H. Głowiński, K. Takanashi, L. T. Baczewski, H. Szymczak, A. Nabiałek   +11 more
doaj   +1 more source