Growth of eutectic composites in the InSb–MnSb system

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• 作者：S. F. Marenkin ; A. V. Kochura ; I. V. Fedorchenko ; A. D. Izotov…
• 关键词：semiconductor heterostructures ; eutectic composites ; ferromagnets ; spintronics
• 刊名：Inorganic Materials
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：52
• 期：3
• 页码：268-273
• 全文大小：1,198 KB
• 参考文献：1.Novotortsev, V.M., Kochura, A.V., Marenkin, S.F., et al., Ferromagnetism of manganese-doped InSb alloys, Russ. J. Inorg. Chem., 2006, vol. 51, no. 10, pp. 1627–1631.CrossRef
  2.Novotortsev, V.M., Kochura, A.V., Marenkin, S.F., Fedorchenko, I.V., Drogunov, S.V., Lashkul, A., and Lahderanta, E., Synthesis and magnetic properties of the InSb–MnSb eutectic, Russ. J. Inorg. Chem., 2011, vol. 56, no. 12, pp. 1951–1956.CrossRef
  3.Izotov, A.D., Marenkin, S.F., Fedorchenko, I.V., Rumyantsev, A.S., Kochura, A.V., Trukhan, V.M., and Shelkovaya, T.V., Magnetic properties of an InSb–MnSb eutectic alloy, Perspekt. Mater., 2011, no. 11, pp. 228–231.
  4.Marenkin, S.F., Izotov, A.D., Fedorchenko, I.V., and Novotortsev, V.M., Manufacture of magnetic granular structures in semiconductor–ferromagnet systems, Russ. J. Inorg. Chem., 2015, vol. 60, no. 3, pp. 295–300.CrossRef
  5.Marenkin, S.F., Izotov, A.D., and Novotortcev, V.M., Synthesis of nanocomposites in semiconductor–ferromagnet systems materials, IX Int. Conf. “Efficient Use of Resources and Environmental Protection—Key Issues of Mining and Metallurgical Complex Development” and XII Int. Sci. Conf. “Advanced Technologies, Equipment and Analytical Systems for Materials and Nano-Materials,” Ust-Kamenogorsk, 2015, part 1, pp. 15–22.
  6.Pashkova, O.N., Izotov, A.D., Sanygin, V.P., and Filatov, A.V., Cluster magnetism in doped InSb, Russ. J. Inorg. Chem., 2014, vol. 59, no. 7, pp. 688–691.CrossRef
  7.Ganesan, K. and Bhat, H.L., Growth, magnetotransport, and magnetic properties of ferromagnetic (In,Mn)Sb crystals, J. Appl. Phys., 2008, vol. 103, paper 043701.
  8.Rednic, L., Deac, I.G., Dorolti, E., et al., Magnetic cluster development in In1–x MnxSb semiconductor alloys, Central Eur. J. Phys., 2010, vol. 8, no. 4, pp. 620–627.
  9.Marenkin, S.F., Raukhman, A.M., Maimasov, A.B., et al., Growth of CdAs2 single crystals by directional solidification in Bridgman geometry, Inorg. Mater., 1997, vol. 33, no. 12, pp. 1220–1226.
  10.Pan, Y. and Sun, G., Magnetic properties of directionally solidified MnSb/Sb eutectic composite, Scr. Mater., 1999, vol. 41, no. 8, pp. 803–807.CrossRef
  11.Takei, W.J., Cox, D.E., and Shirane, G., Magnetic structures in the MnSb–CrSb system, Phys. Rev., 1963, vol. 129, no. 5, pp. 2008–2018.CrossRef
  12.Novodvorsky, O.A., Marenkin, S.F., Parshina, L.S., Khramova, O.D., Mikhalevskiy, V.A., and Aronzon, B.A., Effect of magnetic field on the voltage–current characteristic of the p-(InSb + MnSb)/n-InSb diode structure, IX Int. Conf. “Efficient use of resources and environmental protection—key issues of mining and metallurgical complex development” and XII Int. Sci. Conf. “Advanced technologies, equipment and analytical systems for materials and nano-materials,” Ust-Kamenogorsk, 2015, part 1, pp. 311–313.
  
• 作者单位：S. F. Marenkin (1) (2)
  A. V. Kochura (3)
  I. V. Fedorchenko (1) (2)
  A. D. Izotov (1)
  M. G. Vasil’ev (1)
  V. M. Trukhan (4)
  T. V. Shelkovaya (4)
  O. A. Novodvorsky (5)
  A. L. Zheludkevich (4)
  
  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia
  2. Moscow Institute of Steel and Alloys (National University of Science and Technology), Leninskii pr. 4, Moscow, 119049, Russia
  3. Southwest State University, ul. 50 let Oktyabrya 94, Kursk, 305040, Russia
  4. Scientific–Practical Materials Research Centre, Belarussian Academy of Sciences, ul. Brovki 19, Minsk, 220072, Belarus
  5. Institute on Laser and Information Technologies, Russian Academy of Sciences, Svyatoozerskaya ul. 1, Shatura, Moscow oblast, 140700, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Industrial Chemistry and Chemical Engineering
  Materials Science
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3172

文摘

Eutectic composites in the InSb–MnSb system have been grown by the Bridgman method in vertical geometry using a growth charge of eutectic composition. The composites consisted of a [110]-oriented single-crystal InSb matrix and single-crystal MnSb needles aligned in the growth direction. As the solidification rate was raised from 0.5 to 6 mm/h, the length of the needles increased, whereas their diameter dropped from 20 to 4 µm. Further raising the solidification rate led to spontaneous crystallization. Characteristically, the electrical and magnetic properties of the eutectic composites in the InSb–MnSb system were found to exhibit large anisotropy. The low-temperature resistivity of the composites across the needles is four to five times that along the needles. With increasing temperature, the resistivity ratio drops by up to a factor of 2–3. This can be accounted for in terms of a geometric factor. The electrical conductivity of the composites is determined primarily by the MnSb phase, whose volume along the growth direction was considerably larger. According to magnetic measurements, the eutectic composites in the InSb–MnSb system are ferromagnets with a Curie temperature of ≃ 600 K.