Superconducting transition temperature in polar metals: NaxWO3

Salchow, R.; Liebmann, R.; Appel, J.

doi:10.1016/0378-4363(81)90564-7

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…The single-particle density of states means the density of states for one particle which is to be added or removed from the ground state, while the background remains unchanged. Salchow et al [619,620] have studied the screening effect of the conduction electrons on the electron-phonon interaction using the two-dimensional Lindhard dielectric function whose derivative is singular at q = 2kF, where nkF is the Fermi momentum. Davies and Franz explain the small density of states of Nax Tay W l-y03 with this model 198 5 [617].…”

Section: Electronic Properties In the Insulating Range And The Metal-mentioning

confidence: 99%

“…In such a conductor, the screening of the Coulomb interaction is weak [619,620] and a simple Fermi-liquid picture must be modified especially when the electronelectron interaction is large [834][835][836][837] . In such a conductor, the screening of the Coulomb interaction is weak [619,620] and a simple Fermi-liquid picture must be modified especially when the electronelectron interaction is large [834][835][836][837] .…”

Section: D1 Conductorsmentioning

confidence: 99%

“…Salchow et al have shown that the Tc of Nax W03 is very sensitive to the carrier concentration [619,620] and it increases toward the metalinsulator boundary (Sect. 5.4.3).…”

Section: C) Phonons and The Electron-phonon Interactionmentioning

confidence: 99%

“…(With permission from The American Institute of Physics) 39. The solid line is the calculated one[620]. The solid line is the calculated one[620].…”

mentioning

confidence: 99%

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Electronic Conduction in Oxides

Tsuda

Nasu

Fujimori

et al. 2000

Springer Series in Solid-State Sciences

262

157

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Section: Electronic Properties In the Insulating Range And The Metal-mentioning

confidence: 99%

Section: D1 Conductorsmentioning

confidence: 99%

“…Salchow et al have shown that the Tc of Nax W03 is very sensitive to the carrier concentration [619,620] and it increases toward the metalinsulator boundary (Sect. 5.4.3).…”

Section: C) Phonons and The Electron-phonon Interactionmentioning

confidence: 99%

“…(With permission from The American Institute of Physics) 39. The solid line is the calculated one[620]. The solid line is the calculated one[620].…”

mentioning

confidence: 99%

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Electronic Conduction in Oxides

Tsuda

Nasu

Fujimori

et al. 2000

Springer Series in Solid-State Sciences

262

157

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“…Tungsten trioxide is known to be quite reactive with basic compounds in forming various salts for various technical benefits [28], [29]. The discovery of high temperature super-conductivity has further intensified interest in research on perovskite oxides, especially tungsten trioxide and their bronzes [30], [31].Tungsten trioxide in thin film form has also been known to have other practical applications such as anti-dazzling rear-view mirrors for auto-mobiles [32]- [34], and non-emissive information displays [1], [35] due to its variable diffuse reflectance.…”

Section: Introductionmentioning

confidence: 99%

Thermo Optic Coefficients and Electronic Polarizabilities of Tungsten Bronzes Using Ellipsometry

Hussain

2019

IEEE Photonics J.

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The values of dn/dT for thermally evaporated WO 3 thin films were found to be negative either in the heating cycle (295-373 K) or in the cooling cycle (100-300 K) and were found to be of order of 10 −5 K −1. On the other hand thermo optic coefficients (TOCs: dn/dT and dk/dT values) of tungsten bronzes (H + , Li + , Na +) with different concentrations were found to be positive and negative, respectively in both the heating and cooling cycles and they were found to be in the order of 10 −4 K −1. Heating cycles show hysteresis loops of n and k for tungsten bronzes, which are good for electrochromic devices. On heating the bronzes at temperature higher than 400 K, there might be a reduction in the porosity but an irreversible disordering of hydrogen, lithium or sodium atoms could occur because of anomalous dispersions produced in the optical data. For cooling cycles, the calculated TOCs were again of the order of 10 −4 but there was an increase in dn/dT and a decrease in dk/dT values due to more amorphousness built up in the bronzes during the cooling cycles. This change in the values of TOCs for tungsten bronzes created small decrease in electronic polarizabilities (α e) which were calculated in the range from 8.003 to 8.02 × 10 −24 cm 3 in the cooling cycles.

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Superconductivity and crystalline structure in the Na-W-O system

Garcı́a-Ruiz

Bokhimi

1992

Physica C: Superconductivity

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Superconducting transition temperature in polar metals: NaxWO3

Cited by 6 publications

References 4 publications

Electronic Conduction in Oxides

Electronic Conduction in Oxides

Thermo Optic Coefficients and Electronic Polarizabilities of Tungsten Bronzes Using Ellipsometry

Superconductivity and crystalline structure in the Na-W-O system

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