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.

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.

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 …

2014年6月1日 · We synthesized a series of Ho 1−x Pr x FeO 3 and HoFe 1−x Mn x O 3 polycrystalline compounds to study the A-site and B-site substitution effects on the structural and magnetic properties in HoFeO 3. For A-site Pr 3+ substitution, the spin reorientation temperature increases from 50 K at x =0 to 76 K at x =0.3.

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...

High-quality powder XRD data collected on the ESRF beam line BM16, are presented for the entire magnetically ordered regime (T N ¼ 50 K) of the compound HoFe 4 Ge 2. The data analysis reveals the occurrence of a re-entrant structural transition.

摘要 通过 X 射线粉末衍射 (XRD)、金相学和配备能量色散 X 射线光谱 (EDS) 的扫描电子显微镜 (SEM) 研究了 Ho-Fe-Cr 三元体系的等温截面。 表征了三元化合物 HoFe 12- x Cr x ( x = 2) 并研究了各种三元溶液的均匀性范围。 它以 ThMn 12 型结构结晶，空间群 I 4/ mmm 和单位参数 a = 0.8406 nm 和 c = 0.4756 nm。 HoFe 12- x Cr x 的均匀性范围确定为 x = 1.9–3.6，即 14.6–27.7 at.% Cr。 Cr在Fe、Ho 2 Fe 17 、Ho 6 Fe 23 、HoFe 3 和HoFe 2 中的最大固溶度约为28.0 …

HoFe2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to twelve equivalent Fe atoms. All Ho–Fe bond lengths are 3.00 Å.