Preparation of Nanocomposite Magnetic Compounds Based on Layered Semiconductors by Means of Electrochemical Intercalation in a Gradient Magnetic Field

Boledzyuk, V. B.; Bakhtinov, A. P.; Kovalyuk, Z. D.; Kudrynskyi, Z. R.; Ivanov, V. I.; Слынько, В. И.

doi:10.12693/aphyspola.130.773

Cited by 2 publications

(3 citation statements)

References 26 publications

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“…Cobalt and nickel are ferromagnetic. Thus, in particular, hysteresis of the magnetic properties, which is characteristic of ferromagnetic materials, was observed in layered InSe and GaSe crystals intercalated with cobalt [11,12]. Fig.…”

Section: -2mentioning

confidence: 86%

“…The intercalation of Sb2Te3, Bi2Te3 and In4Se3 samples was carried out with and without applying a constant magnetic field. The magnetic field was created by permanent neodymium magnets, its value at the intercalation front was 4 kOe [11]. The magnetic properties of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 intercalates were studied by magnetometry using a Vibrating Magnetometer 7404 VSM.…”

Section: Methodsmentioning

confidence: 99%

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Magnetic Properties of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 Compounds

Boledzyuk¹,

Kovalyuk²,

Ivanov³

2022

J. Nano- Electron. Phys.

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The properties of layered transition metal dichalcogenides intercalated with 3d metal ions are investigated. The influence of the gradient magnetic field at the intercalation front on the properties of intercalants is studied. It is shown that Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 intercalates have ferromagnetic properties at room temperature. The dependences of the magnetic moment on the magnetic field strength along and across the layers of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 intercalates have the hysteresis loop. The obtained values of the coercive force of the studied samples are typical for hard ferromagnets. The properties of the obtained intercalates are determined by the crystal structure of layered crystals, localization and magnetic interaction of intercalant atoms between the layers of the crystal matrix and the influence of the magnetic field on the processes of exchange interaction between them.

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Section: -2mentioning

confidence: 86%

Section: Methodsmentioning

confidence: 99%

Magnetic Properties of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 Compounds

Boledzyuk¹,

Kovalyuk²,

Ivanov³

2022

J. Nano- Electron. Phys.

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“…Intercalation technology enables creation of new composite material systems in which there is a nanoscale alternation of semiconductor 2D layers and intercalant interlayers, including those of magnetic substances. This has been explored in our earlier experiments on III-VI van der Waals compounds [17][18][19][20][21][22]. This approach can be considered as one of the most promising for progress of spintronic devices based on van der Waals semiconductors.…”

Section: Introductionmentioning

confidence: 99%

Electron Transport in n-Type InSe van der Waals Crystals with Co Impurities

et al. 2022

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Intercalation and doping are promising routes to tune properties of van der Waals (vdW) semiconductors and pave the way for their applications in digital electronics beyond Moore’s law, sensors and spintronics. The indium selenide (InSe) vdW crystal shows great promise for use in next-generation semiconductor technologies. For these applications to be realized, the effects of impurities on properties of InSe must be understood. Here, we present a comparative experimental study of electron transport in n-type InSe semiconductor doped and electrochemically intercalated with magnetic cobalt (Co) impurities. It is shown that the presence of Co decreases the free electron density, the Hall mobility along layers and the conductivity anisotropy σ^С/σ||С. Furthermore, this leads to a change of the behavior of σ^С(Т) dependence from a metallic one in pristine samples to a semiconducting one in samples with Co. We also demonstrate that the interaction of electrons with space-charge regions is an effective scattering mechanism, which should be taken into account in doped and intercalated crystals. The present work is important for the basic physics knowledge of the effect of Co impurities on physical properties of InSe, which is needed to tailor the parameters of this semiconductor for applications in electronics and spintronics.

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Preparation of Nanocomposite Magnetic Compounds Based on Layered Semiconductors by Means of Electrochemical Intercalation in a Gradient Magnetic Field

Cited by 2 publications

References 26 publications

Magnetic Properties of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 Compounds

Magnetic Properties of Co0.1Sb2Te3, Ni0.1Bi2Te3 and Ni0.2In4Se3 Compounds

Electron Transport in n-Type InSe van der Waals Crystals with Co Impurities

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