Results 61 to 70 of about 2,370,040 (298)

Effects of the atmosphere and Mn doping on the electrical properties of Sr2Fe1−xMnxNbO6 and their mechanisms

Materials Research Express, 2020
Double-perovskite composite oxides (A _2 BB′O _6 ) usually have excellent functional properties and are widely studied and applied. Its electrical, magnetic or other properties can be optimized by doping transition metal elements at its B or B′ site.
Ben Ge, Jiaqi Sheng, Yuan Zhuang, Jingtao Ma, Zhibin Yang, Cunpu Li, Suping Peng   +6 more
doaj   +1 more source

Phase competition in the double-exchange model on the frustrated pyrochlore lattice

, 2010
Competition between the ferromagnetic double-exchange interaction and the super-exchange antiferromagnetic interaction is theoretically studied in the presence of geometrical frustration.
Furukawa, Nobuo, Motome, Yukitoshi
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Development of High Energy Thin Layers of Exchange Spring Magnets Originating from Rare Earth Magnets of NdFeB/FeCo

Journal of Advanced Materials in Engineering, 2016
In this study, nine Nd-Fe-B and FeCe thin films with 10-50 nanometers width were prepared by RF magnetron sputtering on the Si/SiO2 substrate. Then, the films were annealed at 800 oC for 5 sec in rapid thermal annealing furnace. X-ray diffractometry (XRD)
A. R. Khanjani, A. Ghasemi
doaj  

Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets

, 1998
We investigate antiferromagnetic spin chains, which are coupled by a weak antiferromagnetic exchange interaction on a hexagonal lattice. We particulary study the role of the dipole-dipole interaction within the framework of a Heisenberg model with ...
Hummel, M., Pich, C., Schwabl, F.
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Temperature‐robust exchange bias and spin‐orbit torque switching in van der Waals heterostructure

InfoMat
Exchange bias (EB) in ferromagnetic/antiferromagnetic materials is a novel idea for high‐density spintronic devices. Van der Waals (vdW) heterostructures offer a promising solution, enabling a “Lego” like assembly without interface or adding dopants ...
Obaid Iqbal, Zahir Muhammad, Wajid Ali, Fuzhou Wang, Md Shafayat Hossain, Azizur Rahman, Saleh S. Alarfaji, Yue Zhang, Xiaoyang Lin, M. Zahid Hasan, Weisheng Zhao   +10 more
doaj   +1 more source

Ab initio exchange interactions and magnetic properties of Gd2Fe17 iron sublattice: rhombohedral vs. hexagonal phases

, 2009
In the framework of the LSDA+U method electronic structure and magnetic properties of the intermetallic compound Gd2Fe17 for both rhombohedral and hexagonal phases have been calculated. On top of that, ab initio exchange interaction parameters within the
A. G. Kuchin, A. V. Lukoyanov, Ch. Kittel, E. E. Kokorina, I. A. Nekrasov, K. H. J. Buschow, M. V. Medvedev   +6 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Mechanisms of spin-polarized current-driven magnetization switching

, 2002
The mechanisms of the magnetization switching of magnetic multilayers driven by a current are studied by including exchange interaction between local moments and spin accumulation of conduction electrons.
A. Brataas, A. Fert, A. Fert, C. Heide, C. Heide, D. H. Hernando, F. J. Albert, J. A. Katine, J. Bass, J. C. Slonczewski, J. C. Slonczewski, J. Grollier, L. Berger, L. Berger, L. Piraux, M. Johnson, P. C. van Son, P. M. Levy, S. Zhang, T. Valet, X. Waintal   +20 more
core   +1 more source