Manganese solubility in quenched InSb

Саныгин, В. П.; Пашкова, О. Н.; Филатов, А. В.; Новоторцев, В. М.

doi:10.1134/s0020168510080017

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…This is associated with the fusion of antimony-rich manganese antimonide clusters (Mn/Sb = 0,896). These temperatures are lower than those reported starting at 570 °C for the antimony-rich compositions of the Mn-Sb binary system phase diagram [10].…”

Section: Resultscontrasting

confidence: 63%

“…Although the DTA technique has been used to measure transitions and magnetic properties [13][14][15], the thermograms showed no phase transitions (peaks) between room temperature and 400 °C. The reported magnetic transitions below 400 °C in the antimony-rich side of the phase diagram for the binary Mn-Sb system [10] were thus not observed, probably due to the low MnSb concentration of the sample.…”

Section: Resultsmentioning

confidence: 92%

“…In fact, although the ab initio calculation has been used to obtain the In1-xMnxSb system properties in the entire range of compositions [7], experimentally it has been noted that manganese solubility in InSb is limited. InSb and MnSb thus form an eutectic [8], and the presence of clusters with manganese has been found in solid polycrystalline In1-xMnxSb solutions obtained by fusion of InSb with Mn [9,10] and by fusion of the constituent elements with argon arc [11].…”

Section: Introductionmentioning

confidence: 95%

“…On the one hand, obtaining In1-xMnxSb system alloys with high Mn concentrations has not been possible using techniques such as the fusion of InSb with Mn [9,10] or the fusion of the constituent elements with the argon arc [11]. On the other hand, the usefulness of a material in spintronic applications depends on its magnetic properties, which are closely related to its morphological, structural and thermal properties.…”

Section: Introductionmentioning

confidence: 99%

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Structural and thermal properties of InSb:Mn with MnSb clusters

Rincón

González-Laprea

Oliveros

et al. 2022

J. Phys.: Conf. Ser.

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III-V family compounds doped with transition metals are promising materials for spintronic applications. Synthesis of an In0.9Mn0.1Sb ingot was thus carried out by direct fusion of the stoichiometric mixture of the constituent elements, followed by controlled cooling. The ingot obtained showed p-type conductivity. Scanning Electron Microscopy (SEM) images show MnSb clusters in an InSb matrix doped with Mn, a result like that found when the compound is obtained using other techniques. Energy-dispersive X-ray spectroscopy (EDS) shows that the atomic ratio of the clusters is Mn/Sb = 0.896 ± 0.025, while the atomic ratio of the matrix is In/Sb = 1.013 ± 0.005. The indexation of the powder X-ray diffraction pattern at room temperature yielded a majority cubic phase of InSb doped with Mn, with a lattice parameter a = 6.474173 Å and cell unit volume V = 271.36Å3 , while non-indexed reflections are associated with the presence of MnSb rich in Sb. The phase transition temperatures were obtained from differential thermal analysis (DTA) measurements on powder samples in evacuated quartz capsules. It can be observed that fusion of the InSb matrix doped with Mn occurs between 485 °C and 528 °C, unlike the congruent fusion of the InSb at 527.7 °C; while the fusion of the Sb-rich MnSb clusters occurs between 494 °C and 509 °C. These temperatures are lower than those reported for the Sb-rich side of the phase diagram of the Mn-Sb binary system, which shows a decrease in the thermal stability of the compounds. The estimated fusion enthalpies for InSb:Mn and antimony-rich MnSb are, respectively, 4.8 Kcal/mol and 117.4 Kcal/mol.

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Section: Resultscontrasting

confidence: 63%

Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structural and thermal properties of InSb:Mn with MnSb clusters

Rincón

González-Laprea

Oliveros

et al. 2022

J. Phys.: Conf. Ser.

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“…As shown by electron probe X ray microanalysis, when semiconductor InSb is quenched from the liquid state, doping of samples reduces to the doping of defects in the crystal lattice of the semiconductor [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Microstructure of quenched doped InSb

et al. 2014

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Magnetic characterization results indicate that, after liquid quenching, InSb samples doped with manganese, manganese + zinc, and manganese + cadmium are magnetic semiconductors. According to microstructural analysis data, polished sections of these materials demonstrate surface order: the grains have the form of wedges directed from the periphery of the section to its center, occupy essentially the entire sur face of the section, and have low angle boundaries with dislocation outcrops on the sample surface. Accord ing to X ray diffraction data, quenched doped InSb samples are free of impurity phases and have preferential crystallographic orientations. Analysis of the present experimental data leads us to conclude that the surfaces of metallographic specimens of doped InSb are sections through textures whose orientation-under given quenching conditions-depends on the dopant composition.

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