Bilayer splitting and wave functions symmetry in Sr3Ir2O7

被引：17
|
作者：
Moreschini, L. [1 ]
Moser, S. [2 ]
Ebrahimi, A. [2 ]
Dalla Piazza, B. [2 ]
Kim, K. S. [1 ,3 ,4 ]
Boseggia, S. [5 ,6 ]
McMorrow, D. F. [5 ]
Ronnow, H. M. [2 ]
Chang, J. [2 ]
Prabhakaran, D. [7 ]
Boothroyd, A. T. [7 ]
Rotenberg, E. [1 ]
Bostwick, A. [1 ]
Grioni, M. [2 ]
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
[2] Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland
[3] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
[4] Inst for Basic Sci, Ctr Artificial Low Dimens Elect Syst, Pohang 790784, South Korea
[5] UCL, London Ctr Nanotechnol, London WC1E 6BT, England
[6] Diamond Light Source Ltd, Didcot OX11 0DE, Oxon, England
[7] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 20期
基金：
英国工程与自然科学研究理事会;
关键词：
ELECTRONIC-STRUCTURE; PHOTOEMISSION; STATES;
D O I：
10.1103/PhysRevB.89.201114
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of dimensionality on the electronic properties of layered perovskite materials remains an outstanding issue. We address it here for Sr3Ir2O7, the bilayer compound of the iridate Srn+1IrnO3n+1 series. By angle-resolved photoemission spectroscopy we show that in this material the interlayer coupling is large and that the intercell coupling is, conversely, negligible. From a detailed mapping of the bilayer splitting, and from the intensity modulation of the bonding and antibonding bands with photon energy, we establish differences and similarities with the prominent case of the bilayer superconducting cuprates.
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页数：5
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