scholarly journals Electronic structure and phase stability of strongly correlated electron materials

2016 ◽  
Author(s):  
Eric B. Isaacs ◽  
Keyword(s):  
Electronic Structure ◽  
Phase Stability ◽  
Strongly Correlated ◽  
Strongly Correlated Electron ◽  
Correlated Electron ◽  
Strongly Correlated Electron Materials

scholarly journals Tomographic mapping of the hidden dimension in quasi-particle interference

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
C. A. Marques ◽  
M. S. Bahramy ◽  
C. Trainer ◽  
I. Marković ◽  
M. D. Watson ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Theoretical Description ◽  
Interference Signal ◽  
Strongly Correlated ◽  
Strongly Correlated Electron ◽  
Quasiparticle Interference ◽  
Correlated Electron ◽  
Tomographic Mapping ◽  
Orbital Character ◽  
Strongly Correlated Electron Materials

AbstractQuasiparticle interference (QPI) imaging is well established to study the low-energy electronic structure in strongly correlated electron materials with unrivalled energy resolution. Yet, being a surface-sensitive technique, the interpretation of QPI only works well for anisotropic materials, where the dispersion in the direction perpendicular to the surface can be neglected and the quasiparticle interference is dominated by a quasi-2D electronic structure. Here, we explore QPI imaging of galena, a material with an electronic structure that does not exhibit pronounced anisotropy. We find that the quasiparticle interference signal is dominated by scattering vectors which are parallel to the surface plane however originate from bias-dependent cuts of the 3D electronic structure. We develop a formalism for the theoretical description of the QPI signal and demonstrate how this quasiparticle tomography can be used to obtain information about the 3D electronic structure and orbital character of the bands.

MHz Broadline NMR and HRTEM in the Study of Novel Strongly Correlated Electron Materials

2011 ◽  
Vol 2 (Supplement A) ◽  
pp. A31-A37
Author(s):  
Georgios Papavassiliou ◽  
D. Argyriou ◽  
Nikos Panopoulos ◽  
Dimitris Koumoulis ◽  
Nikos Boukos ◽  
...  
Keyword(s):  
Strongly Correlated ◽  
Strongly Correlated Electron ◽  
Correlated Electron ◽  
Strongly Correlated Electron Materials

scholarly journals Toward a predictive theory of correlated materials

Science ◽  
2018 ◽  
Vol 361 (6400) ◽  
pp. 348-354 ◽  
Author(s):  
Paul R. C. Kent ◽  
Gabriel Kotliar
Keyword(s):  
Quantum Monte Carlo ◽  
Point Of View ◽  
Strongly Correlated ◽  
Strongly Correlated Electron ◽  
Correlated Electron ◽  
Computational Property ◽  
Difficult Challenge ◽  
Predictive Theory ◽  
Quantum Monte Carlo Methods ◽  
Strongly Correlated Electron Materials

Correlated electron materials display a rich variety of notable properties ranging from unconventional superconductivity to metal-insulator transitions. These properties are of interest from the point of view of applications but are hard to treat theoretically, as they result from multiple competing energy scales. Although possible in more weakly correlated materials, theoretical design and spectroscopy of strongly correlated electron materials have been a difficult challenge for many years. By treating all the relevant energy scales with sufficient accuracy, complementary advances in Green’s functions and quantum Monte Carlo methods open a path to first-principles computational property predictions in this class of materials.

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