Spin Order due to Orbital Fluctuations: Cubic Vanadates

Details Spin Order due to Orbital Fluctuations: Cubic Vanadates Spin Order due to Orbital Fluctuations: Cubic Vanadates

2001-03-14

arxiv.org/abs/cond-mat/0103300v1

Phys. Rev. Lett. 86, 3879 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.86.3879

We investigate the highly frustrated spin and orbital superexchange interactions in cubic vanadates. The fluctuations of $t_{2g}$ orbitals trigger a {\it novel mechanism of ferromagnetic interactions} between spins S=1 of V$^{3+}$ ions along one of the cubic directions which operates already in the absence of Hund's rule exchange $J_H$, and leads to the C-type antiferromagnetic phase in LaVO$_3$. The Jahn-Teller effect can stabilize the orbital ordering and the G-type antiferromagnetic phase at low temperatures, but large entropy due to orbital fluctuations favors again the C-phase at higher temperatures, as observed in YVO$_3$.

Affiliated with

Also associated with

No associations

Rating

Spin Order due to Orbital Fluctuations: Cubic Vanadates 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 Spin Order due to Orbital Fluctuations: Cubic Vanadates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Order due to Orbital Fluctuations: Cubic Vanadates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-175320