Synthesis and properties of In1−x MnxSb solid solutions

Пашкова, О. Н.; Саныгин, В. П.; Иванов, В. А.; Падалко, А. Г.; Новоторцев, В. М.

doi:10.1134/s0020168506050013

Cited by 16 publications

(6 citation statements)

References 2 publications

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“…As shown by Pashkova et al [11], columnar grains account for about 80% of the surface of polished sec tions prepared on quenched manganese doped indium antimonide samples. Later, columnar struc ture was observed in all quenched doped InSb samples.…”

Section: Resultsmentioning

confidence: 87%

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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Section: Resultsmentioning

confidence: 87%

Microstructure of quenched doped InSb

et al. 2014

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“…1 it is clearly seen, that co-doping of (In,Mn)Sb with Zn at the same Mn content enhances the ferromagnetic properties due to the hole density increase in accordance with predictions of the kinematic exchange theory (see Refs. [2][3][4]7] and references therein). …”

Section: Discussionmentioning

confidence: 98%

“…The polycrystalline In x Mn 1Àx Sb samples with different Mn content (0.25, 0.75, 1.00, 1.33 at%) were prepared by the same technique as was used earlier to synthesize the indium antimonide heavily doped with manganese [3,4]. The starting materials were the single-crystal n-type indium antimonide, 99.99%-pure Mn, and 99.999%-pure Sb.…”

Section: Synthesismentioning

confidence: 99%

Dilute magnetic semiconductor (In,Mn)Sb: Transport and magnetic properties

Иванов

Пашкова

Саныгин

et al. 2007

Journal of Magnetism and Magnetic Materials

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“…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: 94%

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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Synthesis and properties of In1−x MnxSb solid solutions

Cited by 16 publications

References 2 publications

Microstructure of quenched doped InSb

Microstructure of quenched doped InSb

Dilute magnetic semiconductor (In,Mn)Sb: Transport and magnetic properties

Structural and thermal properties of InSb:Mn with MnSb clusters

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