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Pregled bibliografske jedinice broj: 253831

Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties


Barišić, Neven; Wu, D.; Dressel, M.; Li, L.J.; Cao, G.H.; Xu, Z.A.
Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties // Physical Review B - Condensed Matter and Materials Physics, 82 (2010), 5; 054518-1 doi:10.1103/PhysRevB.82.054518 (međunarodna recenzija, članak, znanstveni)


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Naslov
Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties

Autori
Barišić, Neven ; Wu, D. ; Dressel, M. ; Li, L.J. ; Cao, G.H. ; Xu, Z.A.

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 82 (2010), 5; 054518-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2)

Sažetak
The electrodynamic properties of Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2) single crystals have been investigated by reflectivity measurements in a wide frequency range. In the metallic state, the optical conductivity consists of a broad incoherent background and a narrow Drude-type component which determines the transport properties ; only the latter contribution strongly depends on the composition and temperature. This subsystem reveals a T(2) behavior in the dc resistivity and scattering rate disclosing a hidden Fermi-liquid behavior in the 122 iron pnictide family. An extended Drude analysis yields the frequency dependence of the effective mass (with m*/m(b) approximate to 5 in the static limit) and scattering rate that does not disclose a simple power law. The spectral weight shifts to lower energies upon cooling ; a significant fraction is not recovered within the infrared range of frequencies.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Profili:

Avatar Url Neven Barišić (autor)

Citiraj ovu publikaciju

Barišić, Neven; Wu, D.; Dressel, M.; Li, L.J.; Cao, G.H.; Xu, Z.A.
Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties // Physical Review B - Condensed Matter and Materials Physics, 82 (2010), 5; 054518-1 doi:10.1103/PhysRevB.82.054518 (međunarodna recenzija, članak, znanstveni)
Barišić, N., Wu, D., Dressel, M., Li, L., Cao, G. & Xu, Z. (2010) Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties. Physical Review B - Condensed Matter and Materials Physics, 82 (5), 054518-1 doi:10.1103/PhysRevB.82.054518.
@article{article, year = {2010}, pages = {054518-1-054518-12}, DOI = {10.1103/PhysRevB.82.054518}, keywords = {Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2)}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.82.054518}, volume = {82}, number = {5}, issn = {1098-0121}, title = {Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties}, keyword = {Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2)} }
@article{article, year = {2010}, pages = {054518-1-054518-12}, DOI = {10.1103/PhysRevB.82.054518}, keywords = {Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2)}, journal = {Physical Review B - Condensed Matter and Materials Physics}, doi = {10.1103/PhysRevB.82.054518}, volume = {82}, number = {5}, issn = {1098-0121}, title = {Electrodynamics of electron-doped iron pnictide superconductors : Normal-state properties}, keyword = {Ba(Fe(0.92)Co(0.08))(2)As(2) and Ba(Fe(0.95)Ni(0.05))(2)As(2)} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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