1211.3943 (J. Laverock et al.)

Photoemission evidence for crossover from Peierls-like to Mott-like
transition in highly strained VO$_2$    [PDF]

J. Laverock, A. R. H. Preston, D. Newby Jr, K. E. Smith, S. Sallis, L. F. J. Piper, S. Kittiwatanakul, J. W. Lu, S. A. Wolf, M. Leandersson, T. Balasubramanian

We present a spectroscopic study that reveals that the metal-insulator transition of strained VO$_2$ thin films may be driven towards a purely electronic transition, which does not rely on the Peierls dimerization, by the application of mechanical strain. Comparison with a moderately strained system, which does involve the lattice, demonstrates the crossover from Peierls- to Mott-like transitions.

View original: http://arxiv.org/abs/1211.3943