Competition between heavy fermion and Kondo interaction in isoelectronic A-site-ordered perovskites

被引：22

作者：

Meyers, D. ^{[1
]}

Middey, S. ^{[1
]}

Cheng, J. -G. ^{[2
,3
,4
]}

Mukherjee, Swarnakamal ^{[5
]}

Gray, B. A. ^{[1
]}

Cao, Yanwei ^{[1
]}

Zhou, J. -S. ^{[4
]}

Goodenough, J. B. ^{[4
]}

Choi, Yongseong ^{[6
]}

Haskel, D. ^{[6
]}

Freeland, J. W. ^{[6
]}

Saha-Dasgupta, T. ^{[5
]}

Chakhalian, J. ^{[1
]}

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[2] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[4] Univ Texas Austin, ETC 9 102, Texas Mat Inst, Austin, TX 78712 USA

[5] SN Bose Natl Ctr Basic Sci, Dept Condensed Matter Phys & Mat Sci, Kolkata 700098, India

[6] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

关键词：

X-RAY-ABSORPTION; ELECTRONIC-STRUCTURE; HOLE CONCENTRATION; PHASE-DIAGRAM; MAGNETORESISTANCE; 1ST-PRINCIPLES; TRANSITION; PHYSICS; STATES; OXIDE;

D O I：

10.1038/ncomms6818

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

With current research efforts shifting towards the 4d and 5d transition metal oxides, understanding the evolution of the electronic and magnetic structure as one moves away from 3d materials is of critical importance. Here we perform X-ray spectroscopy and electronic structure calculations on A-site-ordered perovskites with Cu in the A-site and the B-sites descending along the ninth group of the periodic table to elucidate the emerging properties as d-orbitals change from partially filled 3d to 4d to 5d. The results show that when descending from Co to Ir, the charge transfers from the cuprate-like Zhang-Rice state on Cu to the t(2g) orbital of the B site. As the Cu d-orbital occupation approaches the Cu2+ limit, a mixed valence state in CaCu3Rh4O12 and heavy fermion state in CaCu3Ir4O12 are obtained. The investigated d-electron compounds are mapped onto the Doniach phase diagram of the competing RKKY and Kondo interactions developed for the f-electron systems.

引用

页数：6

共 56 条

[1] Bulk sensitive x-ray absorption spectroscopy free of self-absorption effects [J].

Achkar, A. J. ;

Regier, T. Z. ;

Wadati, H. ;

Kim, Y. -J. ;

Zhang, H. ;

Hawthorn, D. G. .

PHYSICAL REVIEW B, 2011, 83 (08)

[2] EXPLICIT, 1ST-PRINCIPLES TIGHT-BINDING THEORY [J].

ANDERSEN, OK ;

JEPSEN, O .

PHYSICAL REVIEW LETTERS, 1984, 53 (27) :2571-2574

[3] Muffin-tin orbitals of arbitrary order [J].

Andersen, OK ;

Saha-Dasgupta, T .

PHYSICAL REVIEW B, 2000, 62 (24) :16219-16222

[4]

Ashcroft N. W., 1976, SOLID STATE PHYS DOR

[5]

Blaha P., 2019, An augmented plane wave+ local orbitals program for calculating crystal properties

[6] IMPROVED TETRAHEDRON METHOD FOR BRILLOUIN-ZONE INTEGRATIONS [J].

BLOCHL, PE ;

JEPSEN, O ;

ANDERSEN, OK .

PHYSICAL REVIEW B, 1994, 49 (23) :16223-16233

[7] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[8] Anomalous magnetic and transport behavior in the magnetic insulator Sr3Ir2O7 -: art. no. 214412 [J].

Cao, G ;

Xin, Y ;

Alexander, CS ;

Crow, JE ;

Schlottmann, P ;

Crawford, MK ;

Harlow, RL ;

Marshall, W .

PHYSICAL REVIEW B, 2002, 66 (21) :1-7

[9] Weak ferromagnetism, metal-to-nonmetal transition, and negative differential resistivity in single-crystal Sr2IrO4 [J].

Cao, G ;

Bolivar, J ;

McCall, S ;

Crow, JE ;

Guertin, RP .

PHYSICAL REVIEW B, 1998, 57 (18) :R11039-R11042

[10] Orbital reconstruction and covalent bonding at an oxide interface [J].

Chakhalian, J. ;

Freeland, J. W. ;

Habermeier, H.-U. ;

Cristiani, G. ;

Khaliullin, G. ;

van Veenendaal, M. ;

Keimer, B. .

SCIENCE, 2007, 318 (5853) :1114-1117

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