Schematic of Mg diffusion method in combination with pyrene gas treatment used in study 1 and study 2. The sealed Ta tubes were vacuum-sealed in quartz tubes, sintered at for 4 min followed by annealing at for 24–48 h.
(a) Real component of ac susceptibility with and at and (b) normalized temperature dependence of derived from ac susceptibility with , , and , 0.2, 0.5, 1, 3, and 5 T for C-containing gas treated samples and the un-doped reference sample.
Magnetic field dependence of at 5 and 20 K for C-containing gas treated samples and the un-doped reference sample. The at 4.2 and 20 K for thin film is also included for comparison (Ref. 24 ).
Microstructure of high-density bulk prepared from B powder sintered in oxygen-free C-containing gas: (a) BF-TEM image, (b) ADF-STEM image, (c) HAADF-STEM image, (d) edge map, and (e) edge map.
Results of Rietveld refinement on the high-energy SR powder diffraction data for C-containing gas treated samples and the undoped reference sample. The fitting quality between the observed pattern and the calculated one was evaluated by reliability factors , , and and goodness of fit .
Article metrics loading...
Full text loading...