Multiband d-p Model for the Description of Sr₂RuO₄

• Authors: K. Rościszewski , A. Oleś
• Languages of publication: EN

Abstracts

EN

We study electronic structure of multiband d-p model describing RuO₄ layer such as realized in Sr₂RuO₄. The model takes into account nearest-neighbor anisotropic ruthenium-oxygen and oxygen-oxygen hoppings, intra-atomic Coulomb interaction, Hund's exchange and in addition spin-orbit coupling on ruthenium. The RuO₄ is universally considered as a pure t_{2g} system (with e_{g} orbitals empty) due to sizable gap between t_{2g} and e_{g} levels. We show that ruthenium e_{g} orbitals are in fact occupied, similarly like showed earlier for CoO₂ layers.

Keywords

EN

75.25.Dk; 75.47.Lx; 71.70.Ej

Discipline

• 75.25.Dk: Orbital, charge, and other orders, including coupling of these orders
• 75.47.Lx: Magnetic oxides
• 71.70.Ej: Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 260-262

Dates

published

2015-02

Contributors

author

K. Rościszewski

• Marian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, PL-30-059 Kraków, Poland

author

A. Oleś

• Marian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, PL-30-059 Kraków, Poland
• Max-Planck Institut für Festkörperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany

References

• [1] K.T. Park, J. Phys. Condens. Matter 13, 9231 (2001), doi: 10.1088/0953-8984/13/41/313
• [2] I.G. Kaplan, J. Soullard, Phys. Rev. B 76, 174505 (2007), doi: 10.1103/PhysRevB.76.174505
• [3] K. Rościszewski, A.M. Oleś, J. Phys. Condens. Matter 25, 345601 (2013), doi: 10.1088/0953-8984/25/34/345601
• [4] C. Slater, G.F. Koster, Phys. Rev. 94, 1498 (1954), doi: 10.1103/PhysRev.94.1498
• [5] T. Mizokawa, A. Fujimori, Phys. Rev. B 54, 5368 (1966), doi: 10.1103/PhysRevB.54.5368
• [6] L.V. Poluyanov, W. Domcke, J. Chem. Phys. 137, 114101 (2012), doi: 10.1063/1.4751439
• [7] A.M. Oleś, G. Khaliullin, P. Horsch, L.F. Feiner, Phys. Rev. 72, 214431 (2005), doi: 10.1103/PhysRevB.72.214431
• [7a] P. Horsch, in: Handbook of Magnetism and Advanced Magnetic Materials, Vol. 1, Fundamentals and Theory, Eds. H. Kronmüller, S. Parkin, Wiley, London 2007
• [8] T. Sugimoto, D. Ootsuki, T. Mizokawa J. Phys. Soc. Jpn. 82, 104 (2013), doi: 10.1103/PhysRevB.54.5368
• [9] T. Oguchi, Phys. Rev. B 51, 1385 (1995), doi: 10.1103/PhysRevB.51.1385
• [10] T. Mizokawa, L.H. Tjeng, G.A. Sawatzky, G. Ghiringhelli, O. Tjernberg, N.B. Brookes, H. Fuzakawa, S. Nakatsuji, Y. Maeno, Phys. Rev. Lett. 87, 077202 (2001), doi: 10.1103/PhysRevLett.87.077202
• [11] Z.V. Pchelkina, I.A. Nekrasov, Th. Pruschke, A. Sekiyama, S. Suga, V.I. Anisimov, D. Vollhardt, Phys. Rev. B 75, 035122 (2007), doi: 10.1103/PhysRevB.75.035122
• [12] D.I. Khomski, M.V. Mostovoy, J. Phys. A Math. Gen. 36, 9197 (2003), doi: 10.1088/0305-4470/36/35/307
• [13] E. Arrigoni, M. Aichorn, M. Daghofer, W. Hanke, New J. Phys. 11, 055066 (2009), doi: 10.1088/1367-2630/11/5/055066
• [14] C.N. Veenstra, Z.H. Zhu, M. Raiche, B.M. Ludbrook, A. Nicolaou, B. Slomski, G. Landolt, S. Kittaka, Y. Maeno, J.H. Dil, I.S. Elfimov, M.W. Haverkort, A. Damascelli, Phys. Rev. Lett. 112, 127002 (2014), doi: 10.1103/PhysRevLett.112.127002

Identifiers

DOI

10.12693/APhysPolA.127.260