Isotropic magnetization in FeSe thin films on GaAs substrate

Takemura, Yasushi; Honda, N.; Sutô, Hajime; Kakuno, K.

doi:10.1016/s0304-8853(97)00514-3

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…FeSe, as a magnetic material with Curie temperature above room temperature, also could be grown on GaAs substrates. Several methods have been attempted to prepare the iron selenide thin films: molecular beam epitaxy, 8,9 milling pure elemental powders of iron and selenium, [10][11][12] and selenization of evaporated iron thin films. 13 Most of the Fe-Se compounds were prepared by a two-step method: first fabricating Fe and second selenization.…”

mentioning

confidence: 99%

Electronic and magnetic properties of FeSe thin film prepared on GaAs (001) substrate by metal-organic chemical vapor deposition

Liu¹,

Zhang²,

Shen³

et al. 2007

Applied Physics Letters

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FeSe film was prepared on GaAs (001) substrate by low pressure metal-organic chemical vapor deposition. The x-ray diffraction measurement indicated that the sample was preferentially oriented with tetragonal structure. The structure relationship between FeSe epilayer and GaAs (001) substrate has been studied. The critical behavior in the temperature-dependent resistivity at ∼290K is close to the Curie temperature, which confirmed that the transformation from ferromagnetism to paramagnetism could be responsible for the critical behavior.

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mentioning

confidence: 99%

Electronic and magnetic properties of FeSe thin film prepared on GaAs (001) substrate by metal-organic chemical vapor deposition

Liu¹,

Zhang²,

Shen³

et al. 2007

Applied Physics Letters

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“…According to J-C. Grivel et al [22], the formation β-FeSe phase from Fe and Se involves the successive formation of different phase intermediate products and β-FeSe transforms into −FeSe at ~500°C. The tetragonal α-FeSe phase type PbO [23][24] mentioned by some others researchers β-FeSe [25][26][27] represents an interesting type of material whose potential has been proven in many fields because of its electrochemical properties [28] and the magnetic properties [29] significantly the discovery of its superconductivity [23] generated more and more attention for the preparation and the study of properties of this phase. R.A.et al [30] developed FeSe system by chemical vapor deposition method; the crystalline structures formed are the tetragonal and hexagonal superconducting phases in agreement with our results found by XRD.…”

Section: X-ray Diffraction and Analysesmentioning

confidence: 99%

Structural, magnetic and thermal characterization of Fe50Se50 powders obtained by mechanical alloying

Chebli

Djekoun

Suñol

et al. 2019

J Therm Anal Calorim

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Fe50Se50 alloys has been produced from the elementary powders in a high-energy ball mill.The influence of milling times on the microstructures, structure and thermal proprieties have been studied by scanning electron microscopy (SEM) coupled with (EDS) microanalysis, X-Ray diffraction (XRD) and differential scanning calorimetry (DSC).The interaction hyperfine and magnetic proprieties are investigated by transmission Mössbauer spectroscopy (TMS) and thermomagnetic measurements (VSM) respectively. For milling times up to 6 h, the Rietveld refinement of the X-ray diffraction spectra shows the formation of the hexagonal β-FeSe phase, amorphous selenium and also nanocrystalline α-Fe, the (DSC) curves shows several exothermic and endothermic picks, such as the crystallization the selenium amorphous at 103°C For milling times 39 h; the XRD shows the emergence of new phase, also in nanometric scale, a typical of α-FeSe phase tetragonal which has technological interest because is a superconducting phase. The Mössbauer spectroscopy confirmed to formation the two phase's paramagnetic hexagonal β-FeSe and − FeSe tetragonal, in according the XRD and DSC. Measurement of 2 magnetization (VSM) shows that saturation magnetization (MS) decreases by increasing the time of milling.

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“…Before iron-based superconductors were discovered, FeSe thin films had been grown to investigate the electrical application in spintronic devices. Most of reported FeSe films were prepared by the selenization technique [10][11][12]. But these films obtained through the selenized pre-set Fe films inevitably contained more than two Fe-Se phases, and had severely lattice aberration.…”

Section: Introductionmentioning

confidence: 99%

A novel selenization technique for fabrication of superconducting FeSex thin film

Chai

Zhi-Qiang

et al. 2011

Physica C: Superconductivity

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Isotropic magnetization in FeSe thin films on GaAs substrate

Cited by 9 publications

References 5 publications

Electronic and magnetic properties of FeSe thin film prepared on GaAs (001) substrate by metal-organic chemical vapor deposition

Electronic and magnetic properties of FeSe thin film prepared on GaAs (001) substrate by metal-organic chemical vapor deposition

Structural, magnetic and thermal characterization of Fe50Se50 powders obtained by mechanical alloying

A novel selenization technique for fabrication of superconducting FeSex thin film

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