Concept
Energy gap
Related publications (99)
Universal scaling of tunable Yu-Shiba-Rusinov states across the quantum phase transition
Quantum magnetic impurities give rise to a wealth of phenomena attracting tremendous research interest in recent years. On a normal metal, magnetic impurities generate the correlation-driven Kondo effect. On a superconductor, bound states emerge inside the ...
NATURE PORTFOLIO2023Hybridization driving distortions and multiferroicity in rare-earth nickelates
Nicola Marzari, Iurii Timrov, Michele Kotiuga, Luca Binci
For decades transition-metal oxides have generated a huge interest due to the multitude of physical phenomena they exhibit. In this class of materials, the rare-earth nickelates, RNiO3, stand out for their rich phase diagram stemming from complex couplings ...
College Pk2023Spin wave spectra of single crystal CoPS3
Henrik Moodysson Rønnow, Luc Testa, Ursula Bengaard Hansen, Mechthild Enderle
The spin waves in single crystals of the layered van der Waals antiferromagnet CoPS3 have been measured using inelastic neutron scattering. The data show four distinct spin wave branches with large (>14 meV) energy gaps at the Brillouin zone center indicat ...
AMER PHYSICAL SOC2023Origin of metallic-like behavior in disordered carbon nano-onions
Oleg Yazyev, Kristians Cernevics
Carbon nano-onions are a class of nanomaterials that can exhibit long electron spin relaxation times at room temperature and thus hold promise as potential building blocks for spintronics and quantum information processing devices. Despite first being synt ...
PERGAMON-ELSEVIER SCIENCE LTD2023First-principles study of the gap in the spin excitation spectrum of the CrI3 honeycomb ferromagnet
The nature of the gap observed at the zone border in the spin excitation spectrum of CrI3 quasitwo-dimensional single crystals is still controversial. We perform first-principles calculations based on time-dependent density functional perturbation theory, ...
College Pk2023Spin-dependent tunneling between individual superconducting bound states
Klaus Kern, Jacob Senkpiel, Haonan Huang
Magnetic impurities on superconductors induce discrete bound levels inside the superconducting gap, known as Yu-Shiba-Rusinov (YSR) states. YSR levels are fully spin polarized such that the tunneling between YSR states depends on their relative spin orient ...
AMER PHYSICAL SOC2021Quantum phase transitions and the role of impurity-substrate hybridization in Yu-Shiba-Rusinov states
Klaus Kern, Jacob Senkpiel, Haonan Huang
Spin-dependent scattering from magnetic impurities inside a superconductor gives rise to Yu-Shiba-Rusinov (YSR) states within the superconducting gap. They can be modeled by the largely equivalent Kondo or Anderson impurity models. The role of the magnetic ...
NATURE RESEARCH2020Superconducting properties of MoTe2 from ab initio anisotropic Migdal-Eliashberg theory
Samuel Poncé, Feliciano Giustino
Molybdenum ditelluride (MoTe2) is attracting considerable interest since it is the archetypal type-II Weyl semimetal and a candidate for topological superconductivity. We investigate the superconducting phase diagram of two MoTe2 polymorphs using the ab in ...
AMER PHYSICAL SOC2020Formation and stabilization of all-inorganic perovskites for photovoltaics
All-inorganic perovskite films hold promise for improving stability of perovskite solar cells. However, the desirable narrow-bandgap inorganic perovskites (such as CsPbI3 and CsPbI2Br) are suffering from the thermodynamic phase instability, as the photoact ...
EPFL2020Structure and superconductivity in the binary Re1-xMox alloys
The binary Re1-xMox alloys, known to cover the full range of solid solutions, were successfully synthesized and their crystal structures and physical properties investigated via powder x-ray diffraction, electrical resistivity, magnetic susceptibility, and ...
AMER PHYSICAL SOC2019