Results 61 to 70 of about 33,197 (330)

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Hydrothermal synthesis of perovskite and pyrochlore powders of potassium tantalate [PDF]

, 2002
Potassium tantalate powders were hydrothermally synthesized at 100 to 200 °C in 4 to 15 M aqueous KOH solutions. A defect pyrochlore, Kta_(2)O_(5)(OH). nH2O (n ≈ 1.4), was obtained at 4 M KOH, but at 7–12 M KOH, this pyrochlore was gradually replaced by ...
Goh, Gregory K. L., Haile, Sossina M., Lange, Fred F., Levi, Carlos G.   +3 more
core  

Magnetic and Orbital States and Their Phase Transition of the Perovskite-Type Ti Oxides: Strong Coupling Approach

, 2001
The properties and mechanism of the magnetic phase transition of the perovskite-type Ti oxides, which is driven by the Ti-O-Ti bond angle distortion, are studied theoretically by using the effective spin and pseudospin Hamiltonian with strong Coulomb ...
Bocquet A. E., Brandow B. H., Castellani C., Garret J. D., Goodenough J. B., Goodenough J. B., Goral J. P., Goral J. P., Greedan J. E., Harrison W. A., Imada M., Ishihara S., Ishihara S., Kanamori J., Kanamori J., Kanamori J., Katsufuji T., Khomskii D. I., Koshibae W., Kugel K. I., Kugel K. I., Kugel K. I., Maclean D. A., Mermin M. D., Mizokawa T., Mizokawa T., Mochizuki M., Okimoto Y., Saitoh T., Sawada H., Slater J. C.   +30 more
core   +1 more source

Synthesis of infinite-layer LaNiO2 films by metal-organic deposition [PDF]

, 2008
We report the synthesis of infinite-layer LaNiO2 thin films by metal organic decomposition. Our work is aimed to synthesize perovskite-like oxides with 3d9 electronic configuration, which is common to high-Tc copper oxides.
A. Tsukada, Anisimov, Crespin, Crespin, D. Kaneko, Hayward, K. Yamagishi, Lee, M. Naito, Martinez-Lope, Moriga, Sayagués, T. Manabe, Zhou   +13 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Phase relations in the Eu2O3-Fe2O3 system at 1300 and 1400 °C [PDF]

Processing and Application of Ceramics
Phase relations in the Eu2O3-Fe2O3 system at 1300 and 1400°C were studied in the whole concentration range by X-ray diffraction and scanning electron microscopy. The samples were prepared with a concentration step of 1 to 5mol%.
Chudinovych Olga V., Samelyuk Anatoliy V., Korichev Serhiy F., Flis Victor S.   +3 more
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

New cathode material La2/3Cu3Ti4 – xFexO12 – δ for solid oxide fuel cell: Synthesis and electrical conductivity [PDF]

Электрохимическая энергетика
Copper lanthanum titanate La2/3Cu3Ti4−xFexO12−δ x = 0–1 was doped with Fe3+ cations. The diagram of the dependence of the tolerance factor on the relative electronegativity of cations for all studied compositions was represented ...
Pantyukhina, Marina Ivanovna, Dunyushkina, Liliya Adibovna   +1 more
doaj   +1 more source

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source

Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor [PDF]

, 1995
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling.
Bouwmeester, H.J.M., Elshof, J.E. ten, Verweij, H.   +2 more
core   +2 more sources