Effect of B-site bismuth doping on magnetic and transport properties of La0.5Ca0.5Mn1−xBixO3 thin films

Sharma, Himanshu; Kumar, Deepak; Tulapurkar, Ashwin; Tomy, C. V.

doi:10.1007/s10853-018-2833-z

Cited by 10 publications

(3 citation statements)

References 17 publications

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“…Hence, this study will be helpful not only for exploring the physics of spin-orbit coupling phenomena using the interplay among heat, spin, pure spin-current and charge, but also help to explore the origin of anomaly observed at low temperature in NiMnSb. It will be interesting to see whether such anomaly observed in thermal and transport properties can also affect the anisotropy [24][25][26][27] of NiMnSb thin film.…”

Section: Resultsmentioning

confidence: 99%

Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Sharma

Wen

Takanashi

et al. 2019

Jpn. J. Appl. Phys.

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The anomaly in the anomalous Nernst effect (ANE) was observed for a C1 b -type NiMnSb half-Heusler alloy thin film deposited on a MgO (001) substrate. The Nernst angle (θ ANE ) showed maximum peak with decreasing temperature and reached 0.15 at 80 K, which is considered to be brought by the cross-over from half-metal to normal ferromagnet in NiMnSb at low temperature.This anomaly was also observed for the transport properties, that is, both the resistivity and the anomalous Hall resistivity in the same temperature range.

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Section: Resultsmentioning

confidence: 99%

Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Sharma

Wen

Takanashi

et al. 2019

Jpn. J. Appl. Phys.

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“…Mixed-valent manganites of the type R 1−x A x MnO 3 (R is a trivalent rare earth metal and A is a divalent alkaline earth metal) illustrate a variety of physical phenomena such as metal to insulator transition (MIT), charge/orbital ordering (CO/OO), etc., in addition to the well-known colossal magnetoresistance (CMR) property [1][2][3][4][5][6][7] due to the coexistence of competing magnetic and electronic states. In addition, the manganites show the interesting phase separation (PS) phenomenon, which has been studied extensively, especially in La 1−x−y Pr y Ca x MnO 3 (LPCMO) system which is considered to be a classical prototype [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the phase separation property in La$_{0.2}$Pr$_{0.4}$Ca$_{0.4}$MnO$_3$ manganite

Kumar,

Tulapurkar,

Tomy

2019

Preprint

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We report a comprehensive investigation of La0.2Pr0.4Ca0.4MnO3 to clarify the micrometre scale phase separation phenomenon in the mixed valent manganite (La,Pr,Ca)MnO3. The compound shows multiple magnetic transitions, in which the charge-ordered state is converted into a ferromagnetic state in steps with the application of a magnetic field. The ac susceptibility measurements show that the glassy transition at low temperatures does not depend on the frequency, thus indicating the absence of any spin glass behaviour. Magnetization as well as heat capacity measurements indicate that this low temperature transition is magnetic field dependent. The field dependent resistivity at 2 K shows a sharp drop indicating that the sample behaviour changes from a high resistive state to a low resistive state, corroborating the conversion of charge-ordered insulating (COI) phase to a ferromagnetic metallic (FMM) phase. Our results point towards the existence of phase separation, rigidity of the low temperature glassy-like phase as well as the conversion of COI phase to FMM phase by the application of magnetic fields.

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“…In the present study were studied the ferromagnetic La The epitaxial or polycrystalline structure can be influenced by the change of growth method and growth conditions 3 as well as by the choice of substrates for the film growth. 4 Moreover, the change of chemical composition/doping of the manganite films could drastically influence the properties of manganites having dielectric, 5 as well as ferromagnetic [6][7][8] properties. In order to be able to tune the properties of the material, the understanding of material structure and structural distortions is crucial, since compositional/charge distribution changes lead to the change of transport behavior in the multicomponent manganite films.…”

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confidence: 99%

Surface and structural analysis of epitaxial La_1−xSr_x (Mn_1−yCo_y)_zO₃ films

Kačiulis

Bolli

Mezzi

et al. 2020

Surface & Interface Analysis

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In the present study were studied the ferromagnetic La1−xSrx (Mn1−yCoy)zO3 (LSMCO) films with Co content y = 0 to 0.18, grown on LaAlO3 substrates by advantageous pulsed‐injection metalorganic chemical vapor deposition technique. The LSMCO films exhibit negative colossal magnetoresistance effect; therefore, they are interesting as potential material for the applications in magnetic field sensing. The changes of lattice volume in the investigated LSMCO films were monitored by X‐ray diffraction measurements revealing a transition from tensile to compressive strain with increase of Co content. Additionally, from the atomic force microscopy images, the surface smoothening with increase of y was determined. Despite the reduction of the out‐of‐plane lattice parameter of LSMCO, the increase of lattice volume in the whole Co‐doping range was observed. The X‐ray photoelectron spectroscopy combined with Ar+ ion sputtering was used for the investigation of chemical composition of the LSMCO films and demonstrated the change and redistribution of oxidation states of Mn and Co on the surface and in the volume of the films. Regardless of the structural changes and charge distribution of Co and Mn cations, epitaxial LSMCO exhibits ferromagnetic properties and magnetoresistance values increases with augmenting Co content in the range of y = 0 to 0.18.

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Effect of B-site bismuth doping on magnetic and transport properties of La0.5Ca0.5Mn1−xBixO3 thin films

Cited by 10 publications

References 17 publications

Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Investigation of the phase separation property in La$_{0.2}$Pr$_{0.4}$Ca$_{0.4}$MnO$_3$ manganite

Surface and structural analysis of epitaxial La_1−xSr_x (Mn_1−yCo_y)_zO₃ films

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Effect of B-site bismuth doping on magnetic and transport properties of La0.5Ca0.5Mn1−xBixO3 thin films

Cited by 10 publications

References 17 publications

Anomaly in anomalous Nernst effect at low temperature for C1b-type NiMnSb half-Heusler alloy thin film

Anomaly in anomalous Nernst effect at low temperature for C1b-type NiMnSb half-Heusler alloy thin film

Investigation of the phase separation property in La$_{0.2}$Pr$_{0.4}$Ca$_{0.4}$MnO$_3$ manganite

Surface and structural analysis of epitaxial La1−xSrx (Mn1−yCoy)zO3 films

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Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Anomaly in anomalous Nernst effect at low temperature for C1_b-type NiMnSb half-Heusler alloy thin film

Surface and structural analysis of epitaxial La_1−xSr_x (Mn_1−yCo_y)_zO₃ films