Showing 2015 · cond-mat.str-elShow all

23 papers · 2 filters

cond-mat.str-el2015★ 3 cited

Unusual Behaviour of (Np,Pu)B2C

Tomasz Klimczuk, Pascal Boulet, Jean-Christophe Griveau +5

Two transuranium metal boron carbides, NpB2C and PuB2C have been synthesized by argon arc melting. The crystal structures of the {Np,Pu}B2C compounds were determined from single cr…

cond-mat.str-el2015★ 48 cited

Dramatic pressure-driven enhancement of bulk skyrmion stability

I. Levatić, P. Popčević, V. Šurija +6

The recent discovery of magnetic skyrmion lattices initiated a surge of interest in the scientific community. Several novel phenomena have been shown to emerge from the interaction…

cond-mat.str-el2015★ 6 cited

Magnetic excitations of the charge stripe electrons below half doping in La(2-x)Sr(x)NiO4, x = 0.45 and x = 0.4

P. G. Freeman, S. R. Giblin, K. Hradil +3

The low energy magnetic excitation spectrum of charge stripe ordered La(2-x)Sr(x)NiO4, x = 0.4 and x = 0.45 samples were studied by neutron scattering. Two excitation modes are obs…

cond-mat.str-el2015★ 97 cited

Efficient implementation of the parquet equations -- role of the reducible vertex function and its kernel approximation

Gang Li, Nils Wentzell, Petra Pudleiner +2

We present an efficient implementation of the parquet formalism which respects the asymptotic structure of the vertex functions at both single- and two-particle levels in momentum-…

cond-mat.str-el2015★ 10 cited

Global Phase Diagram and Momentum Distribution of Single-Particle Excitations in Kondo insulators

J. H. Pixley, Rong Yu, Silke Paschen +1

Kondo insulators are emerging as a simplified setting to study both magnetic and metal-to-insulator quantum phase transitions. Here, we study a half-filled Kondo lattice model defi…

cond-mat.str-el2015★ 11 cited

Interacting weak topological insulators and their transition to Dirac semimetal phases

Gang Li, Werner Hanke, Giorgio Sangiovanni +1

Topological insulators in the presence of strong Coulomb interaction constitute novel phases of matter. Transitions between these phases can be driven by single-particle or many-bo…