Thermodynamic Properties of Superconductor with Competing Spin-Density Wave and Charge-Density Wave

Thongcham, Kanphot; Udomsamuthirun, P.

doi:10.1007/s10948-015-3049-y

Cited by 2 publications

(1 citation statement)

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“…Early studies were motivated by the close proximity of antiferromagnetic and superconductivity, which suggested that the physics of pnictides is similar to that of cuprates and involves insulating characteristics. The scientific community has recently come to the conclusion that Mott physics has little to no impact on iron pnictides, which remain duplicated for all doping levels, including parent compounds, and whose magnetic order is of the spin density wave (SDW) [ 18,19 ] type rather than Heisenberg antiferromagnetism of localized spins. [ 20 ] Iron arsenide superconductors have encouraged the study of high T C superconductivity to develop in recent years.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Gardew

Kahsay

Negussie

2023

Physica Rapid Research Ltrs

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The current research work deals with the theoretical investigation of the interplay between spin density wave (SDW) and superconductivity in a two‐band model high‐temperature iron‐based superconductor by using the double‐time temperature‐dependent Green's function formalism. The superconductivity transition temperature () versus the spin density wave order parameter () for the electron and hole intrabands as well as the interband for the iron‐based superconductor has been plotted. With an increase in of the material, the superconductivity transition temperature decreases. In both intra‐ and interband pairings, the temperature at which the spin density wave transition () rises with increasing . The interplay between superconductivity and spin density wave of the electron and hole intraband interactions for . Furthermore, the phase diagram of the spin density wave parameter () versus temperature has been plotted, and the spin density wave parameter () is observed to decrease as the temperature rises and vanishes at the spin density wave transition temperature ().

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Section: Introductionmentioning

confidence: 99%

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Gardew

Kahsay

Negussie

2023

Physica Rapid Research Ltrs

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Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba ₂ Ti ₂ Fe ₂ As ₄ O

Rong¹,

Shi²,

Richard³

et al. 2018

Chinese Phys. Lett.

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The electronic structure of iron-pnictide compound superconductor Ba2Ti2Fe2As4O, which has metallic intermediate Ti2O layers, is studied using angle-resolved photoemission spectroscopy. The Ti-related bands show a 'peak-dip-hump' line shape with two branches of dispersion associated with the polaronic states at temperatures below around 120 K. This change in the spectra occurs along with the resistivity anomaly that was not clearly understood in a previous study. Moreover, an energy gap induced by the superconducting proximity effect opens in the polaronic bands at temperatures below 𝑇c (∼21 K). Our study provides the spectroscopic evidence that superconductivity coexists with polarons in the same bands near the Fermi level, which provides a suitable platform to study interactions between charge, lattice and spin freedoms in a correlated system.

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Thermodynamic Properties of Superconductor with Competing Spin-Density Wave and Charge-Density Wave

Cited by 2 publications

References 22 publications

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba ₂ Ti ₂ Fe ₂ As ₄ O

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Thermodynamic Properties of Superconductor with Competing Spin-Density Wave and Charge-Density Wave

Cited by 2 publications

References 22 publications

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Investigation of the Interplay Between Spin Density Wave and Superconductivity in High‐Temperature Iron‐Based Superconductor Ba1−xRbxFe2As2

Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba 2 Ti 2 Fe 2 As 4 O

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Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba ₂ Ti ₂ Fe ₂ As ₄ O