English
Related papers

Related papers: Photoinduced insulator-metal transition and nonlin…

200 papers

Light-manipulation of correlated electronic phases in solids offers the tantalizing prospect of realizing electronic devices operating at the ultrafast time-scale. In this context, the experimental realization of non-equilibrium transitions…

Strongly Correlated Electrons · Physics 2021-04-09 Francesco Grandi , Martin Eckstein

Photo-doping of Mott insulators or correlated metals can create an unusual metallic state which simultaneously hosts hole-like and electron-like particles. We study the dynamics of this state up to long times, as it passes its kinetic…

Strongly Correlated Electrons · Physics 2021-05-26 Nagamalleswararao Dasari , Jiajun Li , Philipp Werner , Martin Eckstein

Understanding light-induced hidden orders is relevant for nonequilibrium materials control and future ultrafast technologies. Hidden superconducting order, in particular, has been a focus of recent experimental and theoretical efforts. In…

Strongly Correlated Electrons · Physics 2025-09-04 Sujay Ray , Martin Eckstein , Philipp Werner

The metal-insulator transition of VO$_2$, which in equilibrium is associated with a structural phase transition, has been intensively studied for decades. In particular, it is challenging to disentangle the role of Mott physics from…

Strongly Correlated Electrons · Physics 2025-05-16 Jiyu Chen , Francesco Petocchi , Viktor Christiansson , Philipp Werner

We study the dynamics of charge-transfer insulators after photo-excitation using the three-band Emery model and a nonequilibrium extension of Hartree-Fock+EDMFT and GW+EDMFT. While the equilibrium properties are accurately reproduced by the…

Strongly Correlated Electrons · Physics 2019-12-18 Denis Golež , Lewin Boehnke , Martin Eckstein , Philipp Werner

Ground state properties of the spin$-1/2$ Falicov-Kimball model on a triangular lattice in the presence of uniform external magnetic field are explored. Both the orbital and the Zeeman field-induced effects are taken into account and in…

Strongly Correlated Electrons · Physics 2020-12-30 Umesh K. Yadav

The study of nonequilibrium phenomena in correlated lattice systems has developed into an active and exciting branch of condensed matter physics. This research field provides rich new insights that could not be obtained from the study of…

Strongly Correlated Electrons · Physics 2014-07-11 Hideo Aoki , Naoto Tsuji , Martin Eckstein , Marcus Kollar , Takashi Oka , Philipp Werner

We study photoinduced optical responses of one-dimensional strongly correlated electron systems. The optical conductivity spectra are calculated for the ground state and a photoexcited state in the one-dimensional Hubbard model at half…

Strongly Correlated Electrons · Physics 2009-11-11 Nobuya Maeshima , Kenji Yonemitsu

The zero temperature core-level photoemission spectrum is studied across the metal to Mott insulator transition using dynamical mean-field theory and Wilson's numerical renormalization group. An asymmetric power-law divergence is obtained…

Strongly Correlated Electrons · Physics 2007-05-23 P. S. Cornaglia , A. Georges

We investigate the metal-to-insulator phase transition driven by the density-density electronic interaction in the quarter-filled model on a cubic lattice with two orbitals split by a crystal field. We show that a systematic consideration…

Strongly Correlated Electrons · Physics 2023-05-30 M. Vandelli , J. Kaufmann , V. Harkov , A. I. Lichtenstein , K. Held , E. A. Stepanov

Based on recent experiments, we describe the Mott insulating, but undimerized state of $TiOCl$ using the local-density approximation combined with multi-orbital dynamical mean field theory (LDA+DMFT) for this $3d^{1}$ system.Good agreement…

Strongly Correlated Electrons · Physics 2007-05-23 L. Craco , M. S. Laad , E. Müller-Hartmann

To elucidate the pressure evolution of the electronic structure in an antiferromagnetic dimer-Mott (DM) insulator ${\beta}^{\prime}$-(BEDT-TTF)$_2$ICl$_2$, which exhibits superconductivity at 14.2 K under 8 GPa, we measured the polarized…

Strongly Correlated Electrons · Physics 2015-09-01 K. Hashimoto , R. Kobayashi , H. Okamura , H. Taniguchi , Y. Ikemoto , T. Moriwaki , S. Iguchi , M. Naka , S. Ishihara , T. Sasaki

The interaction-driven insulator-to-metal transition has been reported in the ionic Hubbard model (IHM) for moderate interaction $U$, while its metallic phase only occupies a narrow region in the phase diagram. To explore the enlargement of…

Strongly Correlated Electrons · Physics 2016-04-13 Mi Jiang , T. C. S. Schulthess

We show that an interplay of double exchange and impurity randomness can explain the competition between metal-ferromagnetic and insulating charge ordered states in doped manganites. The double exchange is simplified in the Ising type,…

Strongly Correlated Electrons · Physics 2016-04-18 Van-Nham Phan , Quoc-Huy Ninh , Minh-Tien Tran

The control of materials properties with light is a promising approach towards the realization of faster and smaller electronic devices. With phases that can be controlled via strain, pressure, chemical composition or dimensionality,…

The magnetic field-induced superconductor-insulator-metal transition (SIMT) in partially deuterated $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br, which is just on the Mott boundary, has been observed using the infrared magneto-optical imaging…

We observe an insulator-to-metal (I-M) transition in crystalline silicon doped with sulfur to non- equilibrium concentrations using ion implantation followed by pulsed laser melting and rapid resolidification. This I-M transition is due to…

Materials Science · Physics 2015-05-27 Mark T. Winkler , Daniel Recht , Meng-Ju Sher , Aurore J. Said , Eric Mazur , Michael J. Aziz

We present a theory of the linear and nonlinear optical characteristics of the insulating phase of the Falicov-Kimball model within the self-consistent mean-field approximation. The Coulomb attraction between the itinerant d-electrons and…

Condensed Matter · Physics 2009-10-28 T. Portengen , Th. Ostreich , L. J. Sham

The recent observation of a insulator to metal transition (IMT) [I. Loa et al, PRL 87, 125501 (2001)] in pure LaMnO$_3$ at 32 GPa and room temperature, well above the Neel temperature (145 K) and below the Jahn-Teller transition temperature…

Strongly Correlated Electrons · Physics 2009-04-16 Javier D. Fuhr , Blas Alascio , Michel Avignon

Temperature-driven metal-insulator and pressure-driven insulator-metal transitions observed in(BEDT-TTF)8[Hg4X12(C6H5Y)2]] with X = Y = Br are studied through band structure calculations based on X-ray crystal structure determination and…