Tamai, A;
Allan, MP;
Mercure, JF;
Meevasana, W;
Dunkel, R;
Lu, DH;
Perry, RS;
... Baumberger, F; + view all
(2008)
Fermi surface and van hove singularities in the itinerant metamagnet Sr3Ru2O7.
Physical Review Letters
, 101
(2)
, Article 026407. 10.1103/PhysRevLett.101.026407.
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Abstract
The low-energy electronic structure of the itinerant metamagnet Sr 3 Ru 2 O 7 is investigated by angle-resolved photoemission and density-functional calculations. We find well-defined quasiparticle bands with resolution-limited linewidths and Fermi velocities up to an order of magnitude lower than in single layer Sr 2 RuO 4. The complete topography, the cyclotron masses, and the orbital character of the Fermi surface are determined, in agreement with bulk sensitive de Haas–van Alphen measurements. An analysis of the d x y band dispersion reveals a complex density of states with van Hove singularities near the Fermi level, a situation which is favorable for magnetic instabilities.
| Type: | Article |
|---|---|
| Title: | Fermi surface and van hove singularities in the itinerant metamagnet Sr3Ru2O7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.026407 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.101.026407 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10134066 |
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