Ru L3-edge XANES studies of A2RuO4 and ARuO3 (A = Ca, Sr, Ba) ruthenates

H. H. Wu; S. W. Chen; B. N. Lin; Y. Y. Hsu; J. F. Lee; L. Y. Jang; H. C. Ku

doi:10.1023/A:1023434017456

Ru L₃-edge XANES studies of A₂RuO₄ and ARuO₃ (A = Ca, Sr, Ba) ruthenates

H. H. Wu^*, S. W. Chen, B. N. Lin, Y. Y. Hsu, J. F. Lee, L. Y. Jang, H. C. Ku

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

3 引文斯高帕斯（Scopus）

摘要

Ru L₃-edge X-ray absorption near-edge structure (XANES) and magnetic studies for Ca₂RuO₄ antiferromagnetic insulator, Sr₂RuO₄ p-wave superconductor, CaRuO₃ exchange-enchange-enhanced paramagnetic metal, SrRuO₃ itinerant ferromagnetic metal and BaRuO₃ paramagnetic metal are compared. Although these compounds crystallized with different structural distortions, they possess similar RuO₆ octahedral environment where the Ru 4d orbitals are split into partially filled t_2g bands with four electrons and empty e_g bands. Two 2p_3/2-4d dipole transition peaks are observed with lower energy peak A for transition to unfilled t_2g states and the higher energy peak B to empty e_g states. The L₃-edge absorption intensity, shape and e_g-t_2g average band separation ΔE (B-A) is closely related to the variation of RuO₆ distortion, Ru-O d-p hybridization and unfilled Ru 4d band width.

原文	英語
頁（從 - 到）	1193-1197
頁數	5
期刊	Journal of Low Temperature Physics
卷	131
發行號	5-6
DOIs	https://doi.org/10.1023/A:1023434017456
出版狀態	已發佈 - 2003 6月
對外發佈	是

ASJC Scopus subject areas

原子與分子物理與光學
一般材料科學
凝聚態物理學

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10.1023/A:1023434017456

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@article{94b757d109854e239e4804dda8d078bc,

title = "Ru L3-edge XANES studies of A2RuO4 and ARuO3 (A = Ca, Sr, Ba) ruthenates",

abstract = "Ru L3-edge X-ray absorption near-edge structure (XANES) and magnetic studies for Ca2RuO4 antiferromagnetic insulator, Sr2RuO4 p-wave superconductor, CaRuO3 exchange-enchange-enhanced paramagnetic metal, SrRuO3 itinerant ferromagnetic metal and BaRuO3 paramagnetic metal are compared. Although these compounds crystallized with different structural distortions, they possess similar RuO6 octahedral environment where the Ru 4d orbitals are split into partially filled t2g bands with four electrons and empty eg bands. Two 2p3/2-4d dipole transition peaks are observed with lower energy peak A for transition to unfilled t2g states and the higher energy peak B to empty eg states. The L3-edge absorption intensity, shape and eg-t2g average band separation ΔE (B-A) is closely related to the variation of RuO6 distortion, Ru-O d-p hybridization and unfilled Ru 4d band width.",

author = "Wu, {H. H.} and Chen, {S. W.} and Lin, {B. N.} and Hsu, {Y. Y.} and Lee, {J. F.} and Jang, {L. Y.} and Ku, {H. C.}",

year = "2003",

month = jun,

doi = "10.1023/A:1023434017456",

language = "English",

volume = "131",

pages = "1193--1197",

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T1 - Ru L3-edge XANES studies of A2RuO4 and ARuO3 (A = Ca, Sr, Ba) ruthenates

AU - Wu, H. H.

AU - Chen, S. W.

AU - Lin, B. N.

AU - Hsu, Y. Y.

AU - Lee, J. F.

AU - Jang, L. Y.

AU - Ku, H. C.

PY - 2003/6

Y1 - 2003/6

N2 - Ru L3-edge X-ray absorption near-edge structure (XANES) and magnetic studies for Ca2RuO4 antiferromagnetic insulator, Sr2RuO4 p-wave superconductor, CaRuO3 exchange-enchange-enhanced paramagnetic metal, SrRuO3 itinerant ferromagnetic metal and BaRuO3 paramagnetic metal are compared. Although these compounds crystallized with different structural distortions, they possess similar RuO6 octahedral environment where the Ru 4d orbitals are split into partially filled t2g bands with four electrons and empty eg bands. Two 2p3/2-4d dipole transition peaks are observed with lower energy peak A for transition to unfilled t2g states and the higher energy peak B to empty eg states. The L3-edge absorption intensity, shape and eg-t2g average band separation ΔE (B-A) is closely related to the variation of RuO6 distortion, Ru-O d-p hybridization and unfilled Ru 4d band width.

AB - Ru L3-edge X-ray absorption near-edge structure (XANES) and magnetic studies for Ca2RuO4 antiferromagnetic insulator, Sr2RuO4 p-wave superconductor, CaRuO3 exchange-enchange-enhanced paramagnetic metal, SrRuO3 itinerant ferromagnetic metal and BaRuO3 paramagnetic metal are compared. Although these compounds crystallized with different structural distortions, they possess similar RuO6 octahedral environment where the Ru 4d orbitals are split into partially filled t2g bands with four electrons and empty eg bands. Two 2p3/2-4d dipole transition peaks are observed with lower energy peak A for transition to unfilled t2g states and the higher energy peak B to empty eg states. The L3-edge absorption intensity, shape and eg-t2g average band separation ΔE (B-A) is closely related to the variation of RuO6 distortion, Ru-O d-p hybridization and unfilled Ru 4d band width.

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Ru L3-edge XANES studies of A2RuO4 and ARuO3 (A = Ca, Sr, Ba) ruthenates

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ASJC Scopus subject areas

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指紋

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Ru L₃-edge XANES studies of A₂RuO₄ and ARuO₃ (A = Ca, Sr, Ba) ruthenates