Publication

Disentanglement of pseudogap and charge stripe order in Nd-LSCO

2014
Talks

Abstract

Despite relentless efforts, the pseudogap phase of cuprates and its possible relation to high-temperature superconductivity remain enigmatic [1]. Even more complexity has been added by the experimental discovery of charge order[2], recently demonstrated as a universal property of underdoped cuprates [3-7]. Naturally, this raised the question as to whether the pseudogap is a precursor to charge order? This presentation addresses exactly that issue by means of angle resolved photoemission spectroscopy. Disentanglement of the spectroscopic signatures from pseudogap physics and charge ordering made it possible to show the different nature of these two phases [8].

Official source

https://infoscience.epfl.ch/entities/publication/44909ab7-9404-46b2-8087-30de29b2ebdf

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2014
Talks

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/44909ab7-9404-46b2-8087-30de29b2ebdf

About this result

Related concepts (11)

Elementary charge

The elementary charge, usually denoted by or , is the electric charge carried by a single proton or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge −1 . The symbol e has another useful mathematical meaning due to which its use as label for elementary charge is avoided in theoretical physics. For example, in quantum mechanics one wants to be able to write compactly plane waves with the use of Euler's number .

Photoemission spectroscopy

Photoemission spectroscopy (PES), also known as photoelectron spectroscopy, refers to energy measurement of electrons emitted from solids, gases or liquids by the photoelectric effect, in order to determine the binding energies of electrons in the substance. The term refers to various techniques, depending on whether the ionization energy is provided by X-ray, XUV or UV photons. Regardless of the incident photon beam, however, all photoelectron spectroscopy revolves around the general theme of surface analysis by measuring the ejected electrons.

Angle-resolved photoemission spectroscopy

Angle-resolved photoemission spectroscopy (ARPES) is an experimental technique used in condensed matter physics to probe the allowed energies and momenta of the electrons in a material, usually a crystalline solid. It is based on the photoelectric effect, in which an incoming photon of sufficient energy ejects an electron from the surface of a material. By directly measuring the kinetic energy and emission angle distributions of the emitted photoelectrons, the technique can map the electronic band structure and Fermi surfaces.

Related publications (10)

Disentanglement of pseudogap and charge stripe order in Nd-LSCO

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