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Dirac Materials

Objective

"The elegant Dirac equation, describing the linear dispersion (energy/momentum) relation of electrons at relativistic speeds, has profound consequences such as the prediction of antiparticles, reflection less tunneling (Klein paradox) and others. Recent discovery of graphene and topological insulators (TI) highlights the scientific importance and technological promise of materials with “relativistic Dirac dispersion"" of electrons for functional materials and device applications with novel functionalities. One might use term ‘Dirac materials’ to encompass a subset of (materials) systems in which the low energy phase space for fermion excitations is reduced compared to conventional band structure predictions (i.e. point or lines of nodes vs. full Fermi Surface).

Dirac materials are characterized by universal low energy properties due to presence of the nodal excitations. It is this reduction of phase space due to additional symmetries that can be turned on and off that opens a new door to functionality of Dirac materials.

We propose to use the sensitivity of nodes in the electron spectrum of Dirac materials to induce controlled modifications of the Dirac points/lines via band structure engineering in artificial structures and via inelastic scattering processes with controlled doping. Proposed research will expand our theoretical understanding and guide design of materials and engineered geometries that allow tunable energy profiles of Dirac carriers."

Call for proposal

ERC-2012-ADG_20120216
See other projects for this call

Funding Scheme

ERC-AG - ERC Advanced Grant

Host institution

KUNGLIGA TEKNISKA HOEGSKOLAN
Address
Brinellvagen 8
100 44 Stockholm
Sweden
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 1 700 000
Principal investigator
Alexander Balatsky (Dr.)
Administrative Contact
Anastasia Gross (Ms.)

Beneficiaries (1)

KUNGLIGA TEKNISKA HOEGSKOLAN
Sweden
EU contribution
€ 1 700 000
Address
Brinellvagen 8
100 44 Stockholm
Activity type
Higher or Secondary Education Establishments
Principal investigator
Alexander Balatsky (Dr.)
Administrative Contact
Anastasia Gross (Ms.)