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Laser based photoemission: revolutionizing the spectroscopy of correlated electrons

Objective

It is proposed to develop a novel instrument for angular resolved photoelectron spectroscopy (ARPES) by combining a laser based ultraviolet light source with a state-of-the-art electron spectrometer. This combination will be unique in Europe and will push this important technique to an entirely new level of resolution, comparable to the thermal broadening at 1 K and nearly an order of magnitude lower than the resolution achievable in practical ARPES experiments with the latest synchrotron light sources. The low photon energy of this new source will also markedly enhance the bulk sensitivity of ARPES and thus enable the investigation of interesting materials that were not accessible so far. These new capabilities will be used to study the subtle quantum many-body states of correlated electrons in transition metal oxides, a frontier topic in condensed-matter physics. Specifically, we will focus on electronic instabilities in perovskites and elucidate how different degrees of freedom play together to determine the often vastly different properties of chemically closely related materials. Moreover, we will apply modern electron spectroscopy to correlated molecular solids with complex phase diagrams that challenge existing theory for satisfactory explanations. This field is largely unexplored but is fundamental for advances in molecular electronics.

Field of science

  • /natural sciences/chemical sciences/analytical chemistry/spectroscopy
  • /natural sciences/physical sciences/optics/laser physics

Call for proposal

ERC-2007-StG
See other projects for this call

Funding Scheme

ERC-SG - ERC Starting Grant

Host institution

UNIVERSITE DE GENEVE
Address
Rue Du General Dufour 24
1211 Geneve
Switzerland
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 281 130
Principal investigator
Felix Baumberger (Dr.)
Administrative Contact
Alex Waehry (Dr.)

Beneficiaries (2)

UNIVERSITE DE GENEVE
Switzerland
EU contribution
€ 281 130
Address
Rue Du General Dufour 24
1211 Geneve
Activity type
Higher or Secondary Education Establishments
Principal investigator
Felix Baumberger (Dr.)
Administrative Contact
Alex Waehry (Dr.)
THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS

Participation ended

United Kingdom
EU contribution
€ 1 169 695
Address
North Street 66 College Gate
KY16 9AJ St Andrews
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Trish Starrs (Ms.)