Kondo Holes in the Two-Dimensional Itinerant Ising Ferromagnet Fe3GeTe2.
Sign Up to like & getrecommendations! Published in 2021 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c01661
Abstract: Heavy Fermion (HF) states emerge in correlated quantum materials due to the intriguing interplay between localized magnetic moments and itinerant electrons but rarely appear in 3d-electron systems due to high itinerancy of d-electrons. Here, an… read more here.
Keywords: itinerant ising; kondo holes; dimensional itinerant; two dimensional ... See more keywords
Building Complex Kondo Impurities by Manipulating Entangled Spin Chains.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.7b02882
Abstract: The creation of molecule-like structures in which magnetic atoms interact controllably is full of potential for the study of complex or strongly correlated systems. Here, we create spin chains in which a strongly correlated Kondo… read more here.
Keywords: strongly correlated; building complex; complex kondo; kondo impurities ... See more keywords
Manipulation of the Magnetic State of a Porphyrin-Based Molecule on Gold: From Kondo to Quantum Nanomagnet via the Charge Fluctuation Regime.
Sign Up to like & getrecommendations! Published in 2023 at "ACS nano"
DOI: 10.1021/acsnano.2c12223
Abstract: By moving individual Fe-porphyrin-based molecules with the tip of a scanning tunneling microscope in the vicinity of the elbow of the herringbone-reconstructed Au(111) containing a Br atom, we reversibly and continuously control their magnetic state.… read more here.
Keywords: kondo; charge; manipulation magnetic; magnetic state ... See more keywords
Real space manifestations of coherent screening in atomic scale Kondo lattices
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-10103-5
Abstract: The interaction among magnetic moments screened by conduction electrons drives quantum phase transitions between magnetically ordered and heavy-fermion ground states. Here, starting from isolated magnetic impurities in the Kondo regime, we investigate the formation of… read more here.
Keywords: coherent screening; manifestations coherent; real space; kondo ... See more keywords
Quantum engineered Kondo lattices
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-13446-1
Abstract: Atomic manipulation techniques have provided a bottom-up approach to investigating the unconventional properties and complex phases of strongly correlated electron materials. By engineering artificial systems containing tens to thousands of atoms with tailored electronic or… read more here.
Keywords: kondo droplets; kondo lattices; engineered kondo; quantum engineered ... See more keywords
Competing magnetic correlations across the ferromagnetic quantum critical point in the Kondo system CeTi1−xVxGe3 : V51 NMR as a local probe
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.134432
Abstract: $^{51}$V nuclear magnetic resonance (NMR) and magnetization studies on CeTi$_{1-x}$V$_x$Ge$_3$ have been performed to explore the evolution from the ferromagnetic ($x = 0.113$) to the antiferromagnetic Kondo lattice state ($x = 1$), with focus on… read more here.
Keywords: quantum critical; kondo; critical point; ferromagnetic quantum ... See more keywords
Isoelectronic tuning of heavy fermion systems: Proposal to synthesize Ce3Sb4Pd3
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.035116
Abstract: The study of (quantum) phase transitions in heavy-fermion compounds relies on a detailed understanding of the microscopic control parameters that induce them. While the influence of external pressure is rather straight forward, atomic substitutions are… read more here.
Keywords: tuning heavy; heavy fermion; isoelectronic tuning; kondo ... See more keywords
Topology and magnetism in the Kondo insulator phase diagram
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.161112
Abstract: Topological Kondo insulators are a rare example of an interaction-enabled topological phase of matter in three-dimensional crystals - making them an intriguing but also hard case for theoretical studies. Here, we aim to advance their… read more here.
Keywords: topology; kondo; phase diagram; insulator ... See more keywords
Photoemission signature of the competition between magnetic order and Kondo effect in CeCoGe3
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.l201104
Abstract: The competition between magnetic order and Kondo effect is essential for the rich physics of heavy fermion systems. Nevertheless, how such competition is manifested in the quasiparticle bands in a real periodic lattice remains elusive… read more here.
Keywords: kondo; kondo effect; magnetic order; competition magnetic ... See more keywords
Fine structure of the spectra of the Kondo lattice model: Two-site cellular dynamical mean-field theory study
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.035107
Abstract: We study the antiferromagnetic and the paramagnetic Kondo insulator phases of the Kondo lattice model on the cubic lattice at half-filling using the cellular dynamical mean-field theory (CDMFT) with numerical renormalization group (NRG) as the… read more here.
Keywords: lattice model; kondo; cellular dynamical; structure ... See more keywords
Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.115158
Abstract: We analyze the magnetically ordered phases in the Kondo lattice model on a square lattice around quarter filling using the dynamical mean field theory. We find that close to quarter filling besides the paramagnetic phase,… read more here.
Keywords: state; order; lattice model; striped magnetic ... See more keywords