Comment on "Orbital Order, Structural Transition and Superconductivity in Iron Pnictides" [arXiv:1010.0129] by Yanagi et al

Abstract

In contrast to the claim by Yanagi et al. in Ref. [1], the development of orbital fluctuations at $q0$ due to the "orthorhombic phonon" is unable to explain the high-Tc superconductivity in iron pnictides. The reason is that the orthorhombic-phonon is acoustic with the energy ${\omega }_q\propto q$, although the authors in Ref. [1] treated it as optical phonon (${\omega }_o=0.02eV$) inconsistently.

arXiv comment2 pages, 1 figure, accepted for publication in J. Phys. Soc. Jpn

References in corpus (5)

• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• Orbital Fluctuation Mediated Superconductivity in Iron Pnictides: Analysis of Five Orbital Hubbard-Holstein Model
• Effects of nematic fluctuations on the elastic properties of iron arsenide superconductors
• Orbital Fluctuation Theory in Iron Pnictides: Effects of As-Fe-As Bond Angle, Isotope Substitution, and $Z^2$-Orbital Pocket on the Superconductivity
• Orbital Order, Structural Transition and Superconductivity in Iron Pnictides

Cited by in corpus (1)

• Origin of Orthorhombic Transition, Magnetic Transition, and Shear Modulus Softening in Iron Pnictide Superconductors: Analysis based on the Orbital Fluctuation Theory