Coherent Quasiparticles with a Small Fermi Surface in Lightly Doped Sr3Ir2O7

被引：40

作者：

de la Torre, A. ^{[1
]}

Hunter, E. C. ^{[2
]}

Subedi, A. ^{[3
]}

Walker, S. McKeown ^{[1
]}

Tamai, A. ^{[1
]}

Kim, T. K. ^{[4
]}

Hoesch, M. ^{[4
]}

Perry, R. S. ^{[5
,6
]}

Georges, A. ^{[1
,3
,7
]}

Baumberger, F. ^{[1
,8
,9
]}

机构：

[1] Univ Geneva, Dept Quantum Matter Phys, CH-1211 Geneva 4, Switzerland

[2] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 2TT, Midlothian, Scotland

[3] Ecole Polytech, Ctr Phys Theor, CNRS, F-91128 Palaiseau, France

[4] Diamond Light Source, Didcot OX11 0DE, Oxon, England

[5] UCL, London Ctr Nanotechnol, London WC1E 6BT, England

[6] UCL, UCL Ctr Mat Discovery, London WC1E 6BT, England

[7] Coll France, F-75005 Paris, France

[8] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[9] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 25期

基金：

欧洲研究理事会; 瑞士国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

SUPERCONDUCTORS; PHASE;

D O I：

10.1103/PhysRevLett.113.256402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We characterize the electron doping evolution of (Sr1-xLax)(3)Ir2O7 by means of angle-resolved photoemission. Concomitant with the metal insulator transition around x approximate to 0.05 we find the emergence of coherent quasiparticle states forming a closed small Fermi surface of volume 3x/2, where x is the independently measured La concentration. The quasiparticle weight Z remains large along the entire Fermi surface, consistent with the moderate renormalization of the low-energy dispersion, and no pseudogap is observed. This indicates a conventional, weakly correlated Fermi liquid state with a momentum independent residue Z approximate to 0.5 in lightly doped Sr3Ir2O7.

引用

页数：5

共 37 条

[11] Doping-dependent evolution of the electronic structure of La2-xSrxCuO4 in the superconducting and metallic phases -: art. no. 094504 [J].

Ino, A ;

Kim, C ;

Nakamura, M ;

Yoshida, T ;

Mizokawa, T ;

Fujimori, A ;

Shen, ZX ;

Kakeshita, T ;

Eisaki, H ;

Uchida, S .

PHYSICAL REVIEW B, 2002, 65 (09) :1-11

[12] Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models [J].

Jackeli, G. ;

Khaliullin, G. .

PHYSICAL REVIEW LETTERS, 2009, 102 (01)

[13] Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4 [J].

Kim, B. J. ;

Ohsumi, H. ;

Komesu, T. ;

Sakai, S. ;

Morita, T. ;

Takagi, H. ;

Arima, T. .

SCIENCE, 2009, 323 (5919) :1329-1332

[14] Novel Jeff=1/2 Mott state induced by relativistic spin-orbit coupling in Sr2IrO4 [J].

Kim, B. J. ;

Jin, Hosub ;

Moon, S. J. ;

Kim, J. -Y. ;

Park, B. -G. ;

Leem, C. S. ;

Yu, Jaejun ;

Noh, T. W. ;

Kim, C. ;

Oh, S. -J. ;

Park, J. -H. ;

Durairaj, V. ;

Cao, G. ;

Rotenberg, E. .

PHYSICAL REVIEW LETTERS, 2008, 101 (07)

[15] Dimensionality Driven Spin-Flop Transition in Layered Iridates [J].

Kim, J. W. ;

Choi, Y. ;

Kim, Jungho ;

Mitchell, J. F. ;

Jackeli, G. ;

Daghofer, M. ;

van den Brink, J. ;

Khaliullin, G. ;

Kim, B. J. .

PHYSICAL REVIEW LETTERS, 2012, 109 (03)

[16] Large Spin-Wave Energy Gap in the Bilayer Iridate Sr3Ir2O7: Evidence for Enhanced Dipolar Interactions Near the Mott Metal-Insulator Transition [J].

Kim, Jungho ;

Said, A. H. ;

Casa, D. ;

Upton, M. H. ;

Gog, T. ;

Daghofer, M. ;

Jackeli, G. ;

van den Brink, J. ;

Khaliullin, G. ;

Kim, B. J. .

PHYSICAL REVIEW LETTERS, 2012, 109 (15)

[17] Magnetic Excitation Spectra of Sr2IrO4 Probed by Resonant Inelastic X-Ray Scattering: Establishing Links to Cuprate Superconductors [J].

Kim, Jungho ;

Casa, D. ;

Upton, M. H. ;

Gog, T. ;

Kim, Young-June ;

Mitchell, J. F. ;

van Veenendaal, M. ;

Daghofer, M. ;

van den Brink, J. ;

Khaliullin, G. ;

Kim, B. J. .

PHYSICAL REVIEW LETTERS, 2012, 108 (17)

[18] Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet [J].

Kim, Y. K. ;

Krupin, O. ;

Denlinger, J. D. ;

Bostwick, A. ;

Rotenberg, E. ;

Zhao, Q. ;

Mitchell, J. F. ;

Allen, J. W. ;

Kim, B. J. .

SCIENCE, 2014, 345 (6193) :187-190

[19] Spectroscopic indications of polaronic behavior of the strong spin-orbit insulator Sr3Ir2O7 [J].

King, P. D. C. ;

Takayama, T. ;

Tamai, A. ;

Rozbicki, E. ;

Walker, S. McKeown ;

Shi, M. ;

Patthey, L. ;

Moore, R. G. ;

Lu, D. ;

Shen, K. M. ;

Takagi, H. ;

Baumberger, F. .

PHYSICAL REVIEW B, 2013, 87 (24)

[20] Tuning the Jeff=1/2 insulating state via electron doping and pressure in the double-layered iridate Sr3Ir2O7 [J].

Li, L. ;

Kong, P. P. ;

Qi, T. F. ;

Jin, C. Q. ;

Yuan, S. J. ;

DeLong, L. E. ;

Schlottmann, P. ;

Cao, G. .

PHYSICAL REVIEW B, 2013, 87 (23)

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