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Electrochemical, optical, and magnetic properties of Ni x GaSe (0 < x ≤ 1) intercalation compounds

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Abstract

We have studied the electrochemical, optical, and magnetic properties of GaSe single crystals electrochemically intercalated with nickel ions. The electrode potential of the layered semiconductor GaSe has been shown to increase monotonically at intercalate concentrations in the range x = 0.2–0.5. Nickel incorporation influences the energy position of the excitonic peak, E ex, and increases the full width at half maximum of the excitonic band, H ex, in GaSe crystals at room temperature. The composition dependence of the energy position of the excitonic peak for the Ni x GaSe intercalation compounds at a temperature of 77 K has been shown to be nonmonotonic, which is caused by two-dimensional exciton motion localization in the basal plane, characteristic of intercalated layered single crystals. The magnetic moment as a function of magnetic field for Ni0.1GaSe intercalation compounds prepared in a magnetic field has the form of a hysteresis loop characteristic of ferromagnetic materials.

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Authors and Affiliations

  1. Frantsevich Institute of Materials Science Problems (Chernivtsi Branch), National Academy of Sciences of Ukraine, vul. Vilde 5, Chernivtsi, 58001, Ukraine

    V. B. Boledzyuk, Z. D. Kovalyuk, Z. R. Kudrynskyi, M. N. Pyrlya & T. N. Feshak

  2. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, bul’v. Akademika Vernadskogo 36, Kyiv, 03680, Ukraine

    A. D. Shevchenko

Authors
  1. V. B. Boledzyuk
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  2. Z. D. Kovalyuk
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  3. Z. R. Kudrynskyi
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  4. M. N. Pyrlya
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  5. T. N. Feshak
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  6. A. D. Shevchenko
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Corresponding authors

Correspondence to V. B. Boledzyuk or A. D. Shevchenko.

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Original Russian Text © V.B. Boledzyuk, Z.D. Kovalyuk, Z.R. Kudrynskyi, M.N. Pyrlya, T.N. Feshak, A.D. Shevchenko, 2015, published in Neorganicheskie Materialy, 2015, Vol. 51, No. 11, pp. 1170–1174.

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Boledzyuk, V.B., Kovalyuk, Z.D., Kudrynskyi, Z.R. et al. Electrochemical, optical, and magnetic properties of Ni x GaSe (0 < x ≤ 1) intercalation compounds. Inorg Mater 51, 1086–1089 (2015). https://doi.org/10.1134/S0020168515100039

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  • DOI: https://doi.org/10.1134/S0020168515100039

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