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- Title
Growth and characterization of Ni substituted Bi<sub>2</sub>Se<sub>3</sub> single crystals.
- Authors
Kumar, Kapil; Sharma, Prince; Sharma, M. M.; Kumar, Yogesh; Awana, V. P. S.
- Abstract
In this article, we report synthesis and magneto-transport analysis of Ni substituted Bi2Se3 crystals. Phase purity and crystalline growth are checked through X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Substitution of smaller Ni atoms is evident from lattice parameters which are apparently decreased with increased Ni concentration. Electron Dispersive X-ray analysis (EDAX) confirms presence of Ni atoms and Raman Spectroscopy measurements shows the presence of vibrational modes of Bi2Se3 with slight shift due to Ni substitution. Interestingly, Bi2Se3 tends to change its metallic phase to semiconducting phase with gradual Ni substitution. Magneto-resistance is also found to be drastically suppressed with Ni substitution due to semiconducting behavior of Ni substituted Bi2Se3. Magneto-conductivity of Ni substituted Bi2Se3 crystal is analyzed for the first time in this article by applying Hikami-Larkin-Nagaoka (HLN) model.
- Subjects
SINGLE crystals; LATTICE constants; MAGNETORESISTANCE; SCANNING electron microscopy; RAMAN spectroscopy
- Publication
Journal of Superconductivity & Novel Magnetism, 2022, Vol 35, Issue 5, p1017
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-022-06150-7