Magnetoresistive effect in the cobalt-doped bismuth ferrite films

Романова, О. Б.; Aplesnin, S. S.; Sitnikov, M. N.; Udod, L. V.; Begisheva, O B; Demidenko, Olga

doi:10.1007/s10854-020-03333-7

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…The bismuth ferrite solid solution films were prepared by sputtering of the pre-synthesized BiFe 0.95 Co 0.05 O 3 solid solutions onto object glasses using the burst technique. The procedure of the synthesis of these thin-film compounds was described in detail in [27]. The deposition was performed in a UVN-71R-2 vacuum system.…”

Section: Structural Optical and Magnetic Propertiesmentioning

confidence: 99%

Electrical Properties of the Polycrystalline BiFe0.95Co0.05O3 Films

et al. 2021

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Semiconductor BiFe 0.95 Co 0.05 O 3 thin-film compounds have been synthesized by a burst technique. The film surface morphology and the effect of electronic doping via substitution of cobalt ions for trivalent iron on the optical, magnetic, and kinetic properties have been investigated in the temperature range of 77-600 K in magnetic fields of up to 12 kOe. Two electron relaxation channels have been found in the impedance spectrum in the frequency range of 0.1-1000 kHz. The negative magnetoresistance in the anomalous magnetization region and the maximum magnetoimpedance in the vicinity of the surface phase transition have been established. Using the Hall measurements, carrier types dominating in the magnetoresistance and magnetoimpedance effects have been determined. The magnetization anomalies have been explained in the model of superparamagnetic clusters and the magnetoresistance, by the carrier scattering by spin fluctuations.

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Section: Structural Optical and Magnetic Propertiesmentioning

confidence: 99%

Electrical Properties of the Polycrystalline BiFe0.95Co0.05O3 Films

et al. 2021

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“…The Seebeck coefficient can reach high values in the region of magnetic and structural phase transitions [12][13][14][15][16][17][18]. Thermoelectricity depends on the conductivity in semiconductors, which can be changed by a magnetic field [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Electric Power Sources Based on the Seebeck Effect of Manganese Sulfides with Rare Earth Substitution

Харьков

Sitnikov

Kretinin

et al. 2022

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The thermoelectric properties of compounds with variable valence Mn1-ХReХS (0 ≤ X ≤ 0.2) in the temperature range of (80 – 1100) K are studied. The maxima on the temperature dependences of the Seebeck coefficient (thermal EMF) for all substitution concentrations and the change of the sign of the Seebeck coefficient from positive to negative with an increase in the substitution concentration in Mn1-XYbXS are determined. A model of impurity donor 4f-states is proposed and a satisfactory agreement with the data on the thermal EMF is obtained.

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