English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Electron–phonon-driven three-dimensional metallicity in an insulating cuprate

MPS-Authors
/persons/resource/persons182604

Sentef,  M. A.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons191720

Brumme,  T.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Wilhelm Ostwald Institut of Physical and Theoretical Chemistry, University of Leipzig;

/persons/resource/persons22028

Rubio,  A.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Nano-Bio Spectroscopy Group, Departamento de Física de Materiales, Universidad del País Vasco;
Center for Computational Quantum Physics, The Flatiron Institute;

External Resource
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

6409.full.pdf
(Publisher version), 2MB

Supplementary Material (public)

pnas.1919451117.sapp.pdf
(Supplementary material), 11MB

Citation

Baldini, E., Sentef, M. A., Acharya, S., Brumme, T., Sheveleva, E., Lyzwa, F., et al. (2020). Electron–phonon-driven three-dimensional metallicity in an insulating cuprate. Proceedings of the National Academy of Sciences of the United States of America, 117(12), 6409-6416. doi:10.1073/pnas.1919451117.


Cite as: http://hdl.handle.net/21.11116/0000-0005-72B2-1
Abstract
Elucidating the role of different degrees of freedom in a phase transition is crucial in the comprehension of complex materials. A phase transformation that attracts significant interest is the insulator-to-metal transition of Mott insulators, in which the electrons are thought to play the dominant role. Here, we use ultrafast laser spectroscopy and theoretical calculations to unveil that the correlated insulator La2CuO4, precursor to high-temperature superconductivity, is unstable toward metallization when its crystal structure is displaced along the coordinates of specific vibrational modes. This, in turn, supports the involvement of the lattice in this phase transition. Our results pave the way toward the geometrical design of metallic states in Mott insulators, with technological potential for ultrafast switching devices at room temperature.