The structure and magnetic properties of Zn0.99Fe0.01O synthesized under high pressure

Observation of ferromagnetism at room temperature in polycrystalline Zn1 − x Fe x O solid solutions synthesized by the precursor method

“…The magnetic prop erties were investigated for single phase samples of the (Table 2). As compared to the data available in the literature (see, for example, [9,13,30,35]), our results correspond to relatively high values of the magnetization, and they were obtained for samples without special treatments in hydrogen and argon (as in [9,13]) or under a high pressure (as in [36]). In particular, according to [13], the pure zinc oxide synthesized by the authors exhibit diamagnetic properties, whereas the Zn 0.98 Fe 0.02 O and Zn 0.95 Fe 0.05 O oxides are paramagnets.…”

Room-temperature ferromagnetism in polycrystalline Zn1–xFexO (0≤x≤0.075) solid solutions synthesized by the precursor method

“…In comparison with the available literature data, for example [9,13,28], our results show relatively higher magnetic moment, although no AreH 2 gas mixture [9,13] or high-pressure [33] treatment was employed. So, according to Ref.…”

Synthesis and magnetic properties of nanocrystalline Zn1–x Fe x O solid solutions

“…X ray phase analysis of the products of Zn 1 ⎯ x Fe x (HCOO) 2 to the data available in the literature (e.g., [12][13][14][15]), our results differ by their relatively high values of mag netization with no special treatment employing hydrogen and argon [12,13] or high pressure [14]. According to [12] [15], and the satura tion magnetization fell as the concentration of iron rose from 0.17 μ B /Fe for x = 0.03 to 0.13 and 0.065 μ B /Fe for x = 0.05 and x = 0.08, respectively.…”

“…This means that the magnetic charac teristics of such materials are unstable over time; i.e., they depend on the content of hydrogen. The authors of[14] synthesized Zn 0.99 Fe 0.01 O solid solution in which ferromagnetism with a saturation magnetiza tion of 0.18 μ B per Fe atom was observed for the sam ple annealed at atmospheric pressure. Treating the samples at pressures of 2 and 5 GPa raised M s to 0.41 and 0.44 μ B /Fe, respectively.…”