Filling-enforced nonsymmorphic Kondo semimetals in two dimensions

Cited 7 time in webofscience Cited 0 time in scopus
  • Hit : 410
  • Download : 0
We study the competition between Kondo screening and frustrated magnetism on the nonsymmorphic Shastry-Sutherland Kondo lattice at a filling of two conduction electrons per unit cell. This model is known to host a set of gapless partially Kondo screened phases intermediate between the Kondo-destroyed paramagnet and the heavy Fermi liquid. Based on crystal symmetries, we argue that (i) both the paramagnet and the heavy Fermi liquid are semimetals protected by a glide symmetry; and (ii) partial Kondo screening breaks the symmetry, removing this protection and allowing the partially Kondo screened phase to be deformed into a Kondo insulator via a Lifshitz transition. We confirm these results using large-N mean-field theory and then use nonperturbative arguments to derive a generalized Luttinger sum rule constraining the phase structure of two-dimensional nonsymmorphic Kondo lattices beyond the mean-field limit.
Publisher
AMER PHYSICAL SOC
Issue Date
2017-08
Language
English
Article Type
Article
Keywords

QUANTUM PHASE-TRANSITIONS; HEAVY-FERMION METALS; CRITICALITY; DIAGRAM; SURFACE; LIQUIDS; LATTICE

Citation

PHYSICAL REVIEW B, v.96, no.8, pp.081105

ISSN
2469-9950
DOI
10.1103/PhysRevB.96.081105
URI
http://hdl.handle.net/10203/225671
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 7 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0