Revisiting the influence of Fe excess in the synthesis of 
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Amigó, M. L.; Stahl, Quirin; Maljuk, A.; Wolter, A. U. B.; Heß, Christian; Geck, J.; Wurmehl, S.; Seiro, S.; Büchner, B.

doi:10.1103/physrevmaterials.5.094801

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…We presume that the same tendency is expected for BaFe2Se3. However, it is indicated that the Fe-rich inclusion appears in the Fe excess BaFe2+δS3 [35]. It is observed that the slight increase of ferromagnetic signal was detected with increasing excess Fe in our SQUID measurements in BaFe2+δSe3.…”

Section: Methodsmentioning

confidence: 55%

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

et al. 2022

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The iron-based superconductors had a significant impact on condensed matter physics. They have a common structural motif of a two-dimensional square iron lattice and exhibit fruitful physical properties as a strongly correlated electron system. During the extensive investigations, quasi-one-dimensional iron-based spin-ladder compounds attracted much attention as a platform for studying the interplay between magnetic and orbital ordering. In these compounds, BaFe2S3 and BaFe2Se3 were found to exhibit superconductivity under high pressure, having a different crystal and magnetic structure at low temperature. We report a brief review of the iron-based spin-ladder compound and recent studies for BaFe2+δ(S1−xSex)3. BaFe2(S0.75 Se0.25)3 is in the vicinity of the boundary of two different magnetic phases and it is intriguing to perform high pressure experiments for studying superconductivity, since effects of large magnetic fluctuations on superconductivity are expected. The effect of iron stoichiometry on the interplay between magnetism and superconductivity is also studied by changing the iron concentration in BaFe2+δSe3.

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Section: Methodsmentioning

confidence: 55%

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

et al. 2022

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“…The hydrostatic pressure environment was also thought to play an important role in the observation of bulk superconductivity. However, the later studies show that, no superconductivity can be witnessed in BaFe 2 S 3 and BaFe 2 S 2.5 Se 0.5 for pressure up to 20 GPa, and there is no clear correlation between the nominal excess Fe content and the actual composition and structure of BaFe 2 S 3 [19,20]. Currently, controversies still exist in understanding the origin of the pressure-induced superconductivity in BaFe 2 S 3 and BaFe 2 Se 3 .…”

Section: Introductionmentioning

confidence: 99%

Pressure-induced electronic phase transition and superconductivity in spin-ladder compounds BaFe₂(S_1−xSe _x )₃

Fan¹,

Liu²,

Jiajia³

et al. 2022

Supercond. Sci. Technol.

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The discovery of high-temperature superconductivity in quasi-one-dimensional spin ladder compound BaFe2S3 has attracted great attention for facilitating study on the interplay among crystalline dimensionality, magnetism, and superconductivity. Here, we report a systematic study on the doping-dependent structure, susceptibility, and high-pressure properties of BaFe2(S1−x Se x )3. The structural analysis manifests a structural transition within the doping level of 0.18 < x< 0.29. Accompanied with this structural transition, the magnetic susceptibility behaviors change substantially, in line with the antiferromagnetic structure change from the stripe-type to the block-type. Furthermore, obvious spin glassy behaviors are observed in the low-temperature region for x⩾ 0.29. High-pressure study has revealed an explicit superconductivity signal in the undoped BaFe2S3 with a pressure of about 12.6 GPa, while no bulk superconductivity is observed for the Se-doped samples. Analysis of the pressure-dependent resistance behavior indicates a pressure-induced electronic phase transition around 18 GPa for all Se-doped samples. Finally, we have discussed the possible origin for the pressure-induced superconductivity in BaFe2(S1−x Se x )3.

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Revisiting the influence of Fe excess in the synthesis of BaFe2S3

Cited by 2 publications

References 36 publications

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

Pressure-induced electronic phase transition and superconductivity in spin-ladder compounds BaFe₂(S_1−xSe _x )₃

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Revisiting the influence of Fe excess in the synthesis of BaFe2S3

Cited by 2 publications

References 36 publications

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

Pressure-Induced Superconductivity in Iron-Based Spin-Ladder Compound BaFe2+δ(S1−xSex)3

Pressure-induced electronic phase transition and superconductivity in spin-ladder compounds BaFe2(S1−x Se x )3

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Product

Resources

About

Pressure-induced electronic phase transition and superconductivity in spin-ladder compounds BaFe₂(S_1−xSe _x )₃