Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$

Details Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$ Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$

2010-03-04

arxiv.org/abs/1003.1003v1

Phys. Rev. B 81, 125119 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

to appear in Phys. Rev. B

Scientific paper

Recent experimental data on the optical conductivity of niobium doped SrTiO$_{3}$ are interpreted in terms of a gas of large polarons with effective coupling constant $\alpha_{eff}\approx2$. The {theoretical approach takes into account} many-body effects, the electron-phonon interaction with multiple LO-phonon branches, and the degeneracy and the anisotropy of the Ti t$_{2g}$ conduction band. {Based on the Fr\"{o}hlich interaction, the many-body large-polaron theory} provides an interpretation for the essential characteristics, except -- interestingly -- for the unexpectedly large intensity of a peak at $\sim130$ meV, of the observed optical conductivity spectra of SrTi$_{1-x}$Nb$_{x}$O$_{3}$ \textit{without} any adjustment of material parameters.

Affiliated with

Also associated with

No associations

Rating

Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Many-body large polaron optical conductivity in SrTi$_{1-x}$Nb$_x$O$_3$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-559960