2022年12月24日 · In the present work, the dynamics of structural and magnetic phase transitions, type and dimension of magnetic order in the HoFe 3 (BO 3) 4 crystals were studied by X-ray diffraction (XRD) and Mössbauer spectroscopy (MS) in the temperature range T = 3.5–500 K.

XRD analysis indicates that the structural phase of HoMnO 3 is highly sensitive to calcination temperature. When the calcination temperature increases from 1000 °C to 1100 °C, HoMnO 3 exhibits phase coexistence, transitioning from a predominantly orthorhombic phase to a primarily hexagonal phase.

2017年5月1日 · We report on the magnetic and Mössbauer properties of polycrystalline HoFe 1-x Cr x O 3 (0≤ x ≤1) compounds. Magnetization data reveals the continuous tailoring of magnetic transition due to weakening of Ho 3+ -Fe 3+ and Fe 3+ -Fe 3+ interactions in the entire temperature range by replacing the Fe 3+ ions with Cr 3+ ions.

2022年10月28日 · In this paper, the structural distortion and competition of magnetic order were investigated by the slight changing the concentration of Cr 3+ ion in HoFe 1−x Cr x O 3 (HFCO) near half-doping. Microstructural distortions were obtained by …

2020年11月25日 · The refined XRD patterns of the HoFeO 3 and HoFe 0.8 Sc 0.2 O 3 samples confirm the presence of a single phase having orthorhombic structure with space group Pbnm.

2016年12月20日 · Magnetic and magnetocaloric properties of HoFe 1−x Co x Al (x = 0, 0.3) were investigated. Both HoFeAl and HoFe 0.7 Co 0.3 Al undergo a second-order ferromagnetic (FIM) to paramagnetic (PM) transition at Curie temperatures (T C) of 87 and 82 K, respectively. The magnetocaloric effect is improved by the introduction of Co in HoFeAl compound.

2016年5月1日 · Orthoferrite solid solution HoFe1−xCrxO3 (x=0, 0.2…, 1.0) was synthesized via solid state reaction methods. The crystal structure, magnetism and spin reorientation properties of this system were...

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videnced orbital mediated electron – pho. on coupling and band gap tuning in HoFe1-xCrxO3 ( lectron-phonon. coupling is sensitive to the presence of both the Fe and Cr at the B-site. . tween Fe3+ - Cr3+ at around 670 cm-1, . his observation is explained on the basis of Franck- ondon (FC) mechanism. Optical absorption studies infer that th.

2016年11月1日 · Therefore, we have investigated the potentially novel magnetic properties of solid solution HoFe 1−x Cr x O 3 (x =1–0) with a focus on the effect of Fe–Cr site substitution and temperature on magnetic structure. This substitution can be viewed as a continuous change of the Ho–Fe (Cr) and Fe (Cr)–Fe (Cr) magnetic interaction.