Results 21 to 30 of about 4,273 (189)
Фізика і хімія твердого тіла, 2021 Five substituted pyrochlore nanooxides such as Nd1.9Ho0.1Zr1.8Ce0.2O7, La1.95Ce0.05Zr0.29Ce1.71O7, Y1.79Pr0.21Ru1.99Pr0.01O7, Dy1.9Yb0.1Mn1.93Cu0.07O7 and Dy1.99Sr0.01Sn2O7 were synthesized by coprecipitation method.
M.B. Khanvilkar +8 more
doaj +1 more source
Magnetic frustration in lead pyrochlores [PDF]
Physical Review B, 2015 The rich phase diagrams of magnetically frustrated pyrochlores have maintained a high level of interest over the past 20 years. To experimentally explore these phase diagrams requires a means of tuning the relevant interactions. One approach to achieve this is chemical pressure, that is, varying the size of the non-magnetic cation. Here, we report on a
Hallas, A. M. +6 more
openaire +2 more sources
Quantum spin fluctuations in the dipolar Heisenberg-like rare earth pyrochlores [PDF]
, 2004 The magnetic pyrochlore oxide materials of general chemical formula R2Ti2O7 and R2Sn2O7 (R = rare earth) display a host of interesting physical behaviours depending on the flavour of rare earth ion.
Adrian G Del Maestro +19 more
core +1 more source
Ion beam Irradiation-induced Amorphization of Nano-sized KxLnyTa2O7-v Tantalate Pyrochlore
Frontiers in Energy Research, 2014 Nano-sized (~10-15 nm) tantalate pyrochlores KxLnyTa2O7-v (Ln = Gd, Y, and Lu) were irradiated with 1 MeV Kr2+ beams at different temperatures and their radiation response behaviors were studied by in-situ TEM observations.
Fengyuan eLu +7 more
doaj +1 more source
Defect structures and migration mechanisms in oxide pyrochlores [PDF]
, 1985 Using computer simulation techniques the defect structure and oxygen ion migration mechanism of oxide pyrochlores (eg. Gd2Zr2O7) was investigated in order to explain the decreased activation enthalpy for oxygen ion conductivity as a function of order ...
Burggraaf, A.J. +3 more
core +3 more sources
New high-pressure phase and equation of state of Ce2Zr2O8 [PDF]
, 2012 In this paper we report a new high-pressure rhombohedral phase of Ce2Zr2O8 observed from high-pressure angle-dispersive x-ray diffraction and Raman spectroscopy studies up to nearly 12 GPa.
A. K. Tyagi +10 more
core +1 more source
Frustrated Quantum Rare-Earth Pyrochlores [PDF]
Annual Review of Condensed Matter Physics, 2019 In this review, we provide an introduction to the physics of a series of frustrated quantum rare-earth pyrochlores. We first give a background on the microscopic single- and two-ion physics of these materials, discussing the origins and properties of their exchange interactions and their minimal low-energy effective models before outlining what is ...
Rau, J., Gingras, M.
openaire +3 more sources
Potassium Disorder in the Defect Pyrochlore KSbTeO6: A Neutron Diffraction Study
Crystals, 2017 KSbTeO6 defect pyrochlore has been prepared from K2C2O4, Sb2O3, and 15% excess TeO2 by solid-state reaction at 850 °C. Direct methods implemented in the software EXPO2013 allowed establishing the basic structural framework.
José Antonio Alonso +4 more
doaj +1 more source
Planar pyrochlore: A strong-coupling analysis [PDF]
Physical Review B, 2002 4 pages REVTeX4 including 3 figures: published version (minor changes)
Brenig, Wolfram, Honecker, Andreas
openaire +2 more sources
Записки Горного института, 2022 The article presents the results of study of the Ilmeno-Vishnevogorsky and Buldym carbonatite complexes in the Urals. It has been established that the carbonatites of the Ilmeno-Vishnevogorsky complex are represented by high-temperature ...
Irina L. Nedosekova
doaj +1 more source