Synthesis, structural and magnetic properties of ludwigite Mn-=SUB=-1.32-=/SUB=-Ni-=SUB=-0.85-=/SUB=-Cu-=SUB=-0.83-=/SUB=-BO-=SUB=-5-=/SUB=-
نویسندگان
چکیده
Single crystals of Mn 1.3 2Ni 0.85 Cu 0.83 BO 5 with the ludwigite structure were obtained by solution-melt method during spontaneous crystallization. The concentration copper, manganese and nickel ions was determined transmission microscopy. Manganese are included in compounds divalent trivalent states. study temperature field dependences showed that we have several magnetic transitions. first transition, associated ferrimagnetic ordering moments parts ions, observed region 50 K. In 25 K, a second transition is observed. Substitution for copper better disorder competition exchange interactions, which leads to division system into subsystems ordered at different temperatures. Keywords: ludwigites, interface indirect interactions.
منابع مشابه
Magnetic properties of the Haldane-gap material [Ni(C<sub>2</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>NO<sub>2</sub>](BF<sub>4</sub>)
Results of magnetization and high-field electron spin resonance (ESR) studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2] (BF4) (NENB) are reported. A definite signature of the Haldane state in NENB was obtained. From the analysis of the frequency–field dependence of magnetic excitations in NENB, the spin-Hamiltonian parameters were calculated, yielding 1/kB = 17.4 K, g‖ = 2.14, D...
متن کاملNovel Magnetic and Optical Properties of Sn<sub>1−x</sub>Zn<sub>x</sub>O<sub>2</sub> Nanoparticles
متن کامل
Magnetic and electronic properties of Eu<sub>4</sub>Sr<sub>4</sub>Ga<sub>16</sub>Ge<sub>30</sub>
متن کامل
Electrochemical Stability of Li<sub>10</sub>GeP<sub>2</sub>S<sub>12</sub> and Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Solid Electrolytes
DOI: 10.1002/aenm.201501590 electrochemical stability window, and (3) chemical compatibility with the anode and cathode. In the past few years, major advances have been achieved in increasing the Li ionic conductivity of the solid electrolytes. The state-of-the-art solid electrolyte materials, such as Li-garnet Li 7 La 3 Zr 2 O 12 (LLZO) and Li 10 GeP 2 S 12 (LGPS) have achieved an ionic conduc...
متن کاملSynthesis and Characterization of Tb[N(CN)<sub>2</sub>]<sub>3</sub>·2H<sub>2</sub>O and Eu[N(CN)<sub>2</sub>]<sub>3</sub>·2H<sub>2</sub>O: Two New Luminescent Rare-Earth Dicyanamides
Two new rare-earth dicyanamides, namely, Tb[N(CN)2]3‚2H2O and Eu[N(CN)2]3‚2H2O, have been prepared by ion exchange in aqueous solution, followed by evaporation of the solvent at room temperature. The structures of both compounds have been solved and refined from single-crystal and powder X-ray diffraction data, respectively. The two compounds are isostructural and are built up from irregular qu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Fizika tverdogo tela
سال: 2022
ISSN: ['0367-3294', '1726-7498']
DOI: https://doi.org/10.21883/pss.2022.11.54200.425