Stabilization of cubic Sr2FeMoO6 through topochemical reduction.
نویسندگان
چکیده
Sr2FeMoO6 has been extensively studied for application in spintronic devices. Through the topochemical de-intercalation of oxygen anions with metal hydride reduction, we demonstrate that the high temperature cubic phase is stabilized, at room temperature, whilst leaving the magnetic ordering intact. Synchrotron X-ray and neutron powder diffraction were used to characterize the structure and stoichiometry of the reduced oxide.
منابع مشابه
Effect of spinal stabilization exercises to reduce urinary incontinence in the elderly
Urinary incontinence has an increasing process among aged women and its statistics in women in The Home for the Elderly is more than others. The purpose of this study is to investigate effect of 4 weeks Spinal Stabilization exercises on urinary incontinence of the elderly people. In this study, participants are elderly women from age of 50 to 70 years old (67±11kg and BMI of 27±4kg/m2), who wer...
متن کاملPerovskites by Design: A Toolbox of Solid-State Reactions
In recent years, many soft-chemical reactions of layered perovskites have been reported, and they can be classified into sets of similar reactions. Simple ion-exchange and intercalation reactions replace or modify the interlayer cations of layered perovskites, and more complex metathesis reactions replace interlayer cations with cationic structural units. Topochemical condensation reactions tha...
متن کاملInfluence of synthesis conditions on microstructure and phase transformations of annealed Sr2FeMoO6−x nanopowders formed by the citrate–gel method
The sequence of phase transformations during Sr2FeMoO6-x crystallization by the citrate-gel method was studied for powders synthesized with initial reagent solutions with pH values of 4, 6 and 9. Scanning electron microscopy revealed that the as-produced and annealed powders had the largest Sr2FeMoO6-x agglomerates with diameters in the range of 0.7-1.2 µm. The average grain size of the powders...
متن کاملStudy on the Stabilization of Attractive Bose-einstein Condensates Using Projection Operator Method
We study the stability of Bose-Einstein condensates (BECs) with attractive twoand three-body interactions by analyzing the nonlinear, cubic quintic Gross-Pitaevskii equation (CQGPE). By employing a projection operator method we discuss the stabilization of an attractive BEC by varying the strength of the trapping potential. Our analysis suggests that the reduction in strength of the external tr...
متن کاملApplication of Response Surface Methodology to Assess the Combined Effect of Operating Variables on the Direct Reduction of Fe2O3 by Coal Volatiles
The reduction of Fe2O3 powder at the top layer by the volatiles from high volatile (HV) bituminous coal at the bottom layer of a multilayer powder geometry including a separating alumina layer was studied. The simultaneous effects of the alumina layer thickness, time, temperature and the weight of coal on the amount of reduction and coal devolatilization were studied by implementing a rotatable...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Chemical communications
دوره 51 61 شماره
صفحات -
تاریخ انتشار 2015