The preparation of single crystals of the rare earth borides by the solution method and a study of their properties

Problems of studying the crystal structure of Ce1−xLax11B6 solid solutions by high-resolution powder neutron diffraction

“…Crystallization was achieved by slow cooling of the melt from 1673 K to room temperature (Gurin, Korsukova, Nikanorov, Smirnov, Stepanov & Shulman, 1979). The purities of the starting materials were 99.7, 99.9 and 99.9 (in % of mass) for lanthanum, cerium and aluminium, respectively.…”

Revisiting the Possible 4f7 5d1 Ground State of Gd Impurities in SmB6 by Electron Spin Resonance

“…This was investigated in great detail within a Diploma thesis [8], in which ESR measurements at 9.25 GHz (X-band) and various theoretical models were also reported. Wiese et al measured samples of Sm 1−x Gd x B 6 in the range of 0.0002 ≤ x ≤ 0.003 that were grown by an aluminum flux technique [9]. The authors claimed that the anomalous spectra were observed in all concentrations, but they mainly focused on the analysis of x = 0.003 due to a better signal-to-noise ratio.…”

Mg‐Assisted Autoclave Synthesis of RB6 (R = Sm, Eu, Gd, and Tb) Submicron Cubes and SmB6 Submicron Rods

“…Most previous methods for the preparation of rare-earth hexaborides need either high temperature or harsh reaction conditions, such as the direct solid-phase reaction of a lanthanide or its oxides with elemental boron at around 1800°C; [1,[11][12][13] the floating-zone method of rare-earth oxides with boron at 1700°C; [5,14,15] the high-pressure and high-temperature synthesis from rare-earth oxides and boron at 1600°C; [16] the carbothermal reduction of lanthanide oxide and boron at 1500°C; [17] the solution method in molten aluminum at about 1300°C; [18] and the chemical vapor deposition (CVD) method at around 1150°C. [7,8,19] However, there are only a few papers reporting the synthesis of hexaborides below 1000°C.…”