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33 papers · 2 filters
Pressure-Tuned Point-Contact Spectroscopy of URu2Si2 from Hidden Order to Antiferromagnetic States: Similarity of the Fermi Surface Gapping
Xin Lu, F. Ronning, P. H. Tobash +3
We report soft point-contact spectroscopy studies of URu2Si2 both in the hidder order (HO) and the large-moment antiferromagnetic (LMAF) states accessed by pressure. In the HO stat…
Fractionalization in spontaneous integer quantum Hall systems
Rodrigo A. Muniz, Armin Rahmani, Ivar Martin
It is widely believed that integer quantum Hall systems do not have fractional excitations. Here we show the converse to be true for a class of systems where integer quantum Hall e…
Behavior of a Magnetic Impurity in Graphene in the Presence of a Vacancy
F. M. Hu, J. E. Gubernatis, Hai-Qing Lin +2
With quantum Monte Carlo methods, we investigate the consequences of placing a magnetic adatom adjacent to a vacancy in a graphene sheet. We find that instead of the adatom propert…
Metal-insulator transition in the Edwards model
H. Fehske, S. Ejima, G. Wellein +1
To understand how charge transport is affected by a background medium and vice versa we study a two-channel transport model which captures this interplay via a novel, effective fer…
How Kondo Holes Create Intense Nanoscale Heavy-Fermion Hybridization Disorder
Mohammad H. Hamidian, Andrew R. Schmidt, Inês A. Firmo +8
Replacing a magnetic atom by a spinless atom in a heavy fermion compound generates a quantum state often referred to as a 'Kondo-hole'. No experimental imaging has been achieved of…
Charge self-consistent dynamical mean-field theory based on the full-potential linear muffin-tin orbital method: methodology and applications
O. Grånäs, I. Di Marco, P. Thunström +4
Full charge self-consistence (CSC) over the electron density has been implemented into the local density approximation plus dynamical mean-field theory (LDA+DMFT) scheme based on a…