Quasiparticle Interference, Quasiparticle Interactions, and the Origin of the Charge Density Wave in 2H-NbSe_{2}

Author(s): C. J. Arguello, E. P. Rosenthal, E. F. Andrade, W. Jin, P. C. Yeh, N. Zaki, S. Jia, R. J. Cava, R. M. Fernandes, A. J. Millis, T. Valla, R. M. Osgood, Jr., and A. N. Pasupathy

Photoemission and tunneling measurements show that the charge-density wave in 2H-NbSe₂ is governed by quasiparticles coupling to phonon modes.

[Phys. Rev. Lett. 114, 037001] Published Wed Jan 21, 2015