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Magnetism in La2O3(Fe1-xMnx)2Se2 tuned by Fe/Mn ratio

Autor: Lei, Hechang, Bozin, Emil S., Llobet, A., Ivanovski, V., Koteski, V., Cavor, J. Belosevic, Cekic, B., Petrovic, C.

Publikováno v: Phys. Rev. B 86, 125122 (2012)

We report the evolution of structural and magnetic properties in La2O3(Fe1-xMnx)2Se2. Heat capacity and bulk magnetization indicate an increased ferromagnetic component of the long-range magnetic order and possible increased degree of frustration. At

Externí odkaz: http://arxiv.org/abs/1210.2711

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Structure and physical properties of new layered iron oxychalcogenide BaFe2OSe2

Autor: Lei, Hechang, Ryu, Hyejin, Warren, John, Frenkel, A. I., Ivanovski, V., Cekic, B., Petrovic, C.

We have successfully synthesized a new layered iron oxychalcogenide BaFe2OSe2 single crystal. This compound is built up of Ba and Fe-Se(O) layers alternatively stacked along the c-axis. The Fe-Se(O) layers contain double chains of edge-shared Fe-Se(O

Externí odkaz: http://arxiv.org/abs/1206.5788

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New characterizations of Haj{\l}asz-Sobolev type spaces with variable exponent on metric measure spaces

Autor: Cekic, B., Mashiyev, R. A.

In this article, we introduce classes of functions whose increment is controlled by the measure of a ball containing the corresponding points and a nonnegative function p(.) that is summable with respect to measure. These classes of functions can be

Externí odkaz: http://arxiv.org/abs/1104.1549

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