Skip to main content
eScholarship
Open Access Publications from the University of California

Emerging coherence with unified energy, temperature, and lifetime scale in heavy fermion YbRh 2Si 2

  • Author(s): Mo, SK
  • Lee, WS
  • Schmitt, F
  • Chen, YL
  • Lu, DH
  • Capan, C
  • Kim, DJ
  • Fisk, Z
  • Zhang, CQ
  • Hussain, Z
  • Shen, ZX
  • et al.
Abstract

We present ultrahigh resolution angle-resolved photoemission data of the prototypical Kondo lattice system YbRh 2Si 2, using a 7 eV laser photon source. Detailed temperature dependent measurements reveal the development of coherent states, in the form of sharp, weakly dispersing peaks at the lowest energy of single-electron spectra, below a characteristic temperature. The characteristic temperature, obtained from angle-resolved photoemission, is intriguingly of exactly the same scale as the energy and the lifetime of the coherent state. © 2012 American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View