Baumberger, F;
Ingle, NJC;
Kikugawa, N;
Hossain, MA;
Meevasana, W;
Perry, RS;
Shen, KM;
... Shen, ZX; + view all
(2006)
Nested Fermi surface and electronic instability in Ca3Ru2O7.
Physical Review Letters
, 96
(10)
, Article 107601. 10.1103/PhysRevLett.96.107601.
Preview |
Text
PhysRevLett.96.107601.pdf - Published Version Download (665kB) | Preview |
Abstract
High-resolution angular resolved photoemission data reveal well-defined quasiparticle bands of unusually low weight, emerging in line with the metallic phase of Ca 3 Ru 2 O 7 below ∼ 30 K . At the bulk structural phase transition temperature of 48 K, we find clear evidence for an electronic instability, gapping large parts of the underlying Fermi surface that appears to be nested. Metallic pockets are found to survive in the small, non-nested sections, constituting a low-temperature Fermi surface with 2 orders of magnitude smaller volume than in all other metallic ruthenates. The Fermi velocities and volumes of these pockets are in agreement with the results of complementary quantum oscillation measurements on the same crystal batches.
| Type: | Article |
|---|---|
| Title: | Nested Fermi surface and electronic instability in Ca3Ru2O7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.96.107601 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.96.107601 |
| Language: | English |
| Additional information: | This version is the version of record. 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/10134074 |
Archive Staff Only
 |
View Item |
