Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates

Details Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates

2011-06-23

arxiv.org/abs/1106.4828v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 6 figures

Scientific paper

Ab initio calculations predict a metal-insulator transition at zero temperature to occur in La$_4$Ni$_3$O$_8$ at moderate pressures as a result of a pressure-induced spin-state transition. The spin-state transition that is seen at 105 K at ambient pressure from a low-temperature high-spin state to a high-temperature low-spin state has been observed to be shifted to lower temperatures as pressure is applied. From our calculations we find that a smaller unit cell volume favors the metallic low-spin state, which becomes more stable at 5 GPa. Similar physics should take place in the related compound La$_3$Ni$_2$O$_6$, but on a different energy scale, which may account for why the transition has not been observed in this material.

Affiliated with

Also associated with

No associations

Rating

Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates 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 Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-393348