Evidence for the formation of a Mott state in potassium-intercalated pentacene

Details Evidence for the formation of a Mott state in potassium-intercalated pentacene Evidence for the formation of a Mott state in potassium-intercalated pentacene

2008-02-20

arxiv.org/abs/0802.2813v2

Phys. Rev. B. 79, 125116 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 6 figures

Scientific paper

10.1103/PhysRevB.79.125116

We investigate electronic transport through pentacene thin-films intercalated with potassium. From temperature-dependent conductivity measurements we find that potassium-intercalated pentacene shows metallic behavior in a broad range of potassium concentrations. Surprisingly, the conductivity exhibits a re-entrance into an insulating state when the potassium concentration is increased past one atom per molecule. We analyze our observations theoretically by means of electronic structure calculations, and we conclude that the phenomenon originates from a Mott metal-insulator transition, driven by electron-electron interactions.

Affiliated with

Also associated with

No associations

Rating

Evidence for the formation of a Mott state in potassium-intercalated pentacene 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 Evidence for the formation of a Mott state in potassium-intercalated pentacene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for the formation of a Mott state in potassium-intercalated pentacene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-647690