Results 91 to 100 of about 301,621 (273)

Electric polarization enhancement in multiferroic CoCr2O4 crystals with Cr-site mixing [PDF]

open access: yes, 2015
Single crystals of multiferroic cobalt chromite Co (Cr2-x Cox) O4 have been grown via several methods to have different Co3+ doping levels (x=0.0, 0.14, and 0.18). Under magnetic fields, all the crystals display electric polarization reversal below their
Chun, Sae Hwan   +8 more
core   +1 more source

Variable Temperature Studies of Two Calcium Uranates α‐Ca3UO6 and Ca2UO5

open access: yesChemistry – A European Journal, EarlyView.
The structures and thermal responses of the calcium uranates α‐Ca3UO6 and Ca2UO5 were investigated using in situ synchrotron x‐ray diffraction and neutron powder diffraction. Despite the very similar chemical compositions, the structural response of the two calcium uranates is shown to be complex and varied.
Maria K. Nicholas   +8 more
wiley   +1 more source

Nanostructured spinel ferrites: A comprehensive study on the synthesis, characterization, and magnetic properties of Zn and Mn substituted magnetite nanoparticles produced through the co-precipitation method

open access: yesJournal of Materials Research and Technology
Seven cubic spinel ferrite nanoparticles were successfully synthesized through the co-precipitation method. These nanoparticles include Fe3O4, Zn0.4Fe0.62+Fe23+O4, Mn0.4Fe0.62+Fe23+O4, Zn0.6Mn0.4Fe0.42+Fe1.63+O4, Zn0.4Mn0.6Fe0.42+Fe1.63+O4, Zn0.4Mn0.4Fe0.
Mahmoud Ahmed   +3 more
doaj   +1 more source

Long-run growth expectations and "global imbalances" : [January 5, 2011] [PDF]

open access: yes, 2011
This paper examines to what extent the build-up of "global imbalances" since the mid-1990s can be explained in a purely real open-economy DSGE model in which agents’ perceptions of long-run growth are based on filtering observed changes in productivity ...
Hoffmann, Mathias   +2 more
core  

Electronic Structure and Valence Band Spectra of Bi4Ti3O12

open access: yes, 1995
The x-ray photoelectron valence band spectrum and x-ray emission valence-band spectra (Ti K _beta_5, Ti L_alpha, O K_alpha) of Bi4Ti3O12 are presented (analyzed in the common energy scale) and interpreted on the basis of a band-structure calculation for ...
A. David Rae   +35 more
core   +1 more source

KI‐Chatbots als Unterrichtswerkzeug: Eine Lehrkräftefortbildung zum Einsatz von KI‐Chatbots im Chemieunterricht

open access: yesCHEMKON, EarlyView.
Der Einsatz von KI‐gestützten Chatbots wie ChatGPT im Chemieunterricht eröffnet neue Möglichkeiten für das Lehren und Lernen im Fach Chemie. Um Lehrkräfte für einen reflektierten und didaktisch sinnvollen Einsatz von KI‐Chatbots im Chemieunterricht zu qualifizieren und ihnen zu ermöglichen, diese Tools auch mit ihren Lernenden anzuwenden, wurde eine ...
Diana Zeller, Claudia Bohrmann‐Linde
wiley   +1 more source

Income Inequality and Economic Complexity Nexus: The Moderating Roles of Institutional Quality and Globalization

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice
This paper investigates the link between economic complexity and income inequality by addressing the moderating functions of institutional quality and globalization on economic complexity.
Erkişi Kemal
doaj   +1 more source

Digital inclusive finance for green transformation: Insight from green innovation, industrial upgrading, and employment quality

open access: yesJournal of Innovation & Knowledge
Understanding the influence of digital inclusive finance (DIF) on inclusive green growth (IGG) is crucial for promoting the green transformation and sustainable development of developing economies.
Wulin Wu, Xiaowen Lin
doaj   +1 more source

Classification of complete left-invariant affine structures on the Oscillator group [PDF]

open access: yes, 2013
The goal of this paper is to provide a method, based on the theory of extensions of left-symmetric algebras, for classifying left-invariant affine structures on a given solvable Lie group of low dimension.
Guediri, Mohammed
core   +3 more sources

Raman and Infrared-Active Phonons in Hexagonal HoMnO$_3$ Single Crystals: Magnetic Ordering Effects

open access: yes, 2003
Polarized Raman scattering and infrared reflection spectra of hexagonal HoMnO$_3$ single crystals in the temperature range 10-300 K are reported. Group-theoretical analysis is performed and scattering selection rules for the second order scattering ...
A P Litvinchuk   +19 more
core   +1 more source

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