Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO3: Ion-size and the Jahn-Teller distortion effects

Y. T. Tsai; W. J. Chang; S. W. Huang; Jiunn-Yuan Lin; J. Y. Lee; J. M. Chen; Kaung-Hsiung Wu; T. M. Uen; Y. S. Gou; Jenh-Yih Juang

doi:10.1016/j.physb.2008.12.038

Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO₃: Ion-size and the Jahn-Teller distortion effects

Y. T. Tsai^*, W. J. Chang, S. W. Huang, Jiunn-Yuan Lin, J. Y. Lee, J. M. Chen, Kaung-Hsiung Wu, T. M. Uen, Y. S. Gou, Jenh-Yih Juang

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

10 Scopus citations

Abstract

The temperature-dependent X-ray absorption near-edge spectroscopy (XANES) of LaMnO₃ thin films doped with various divalent ions was systematically carried out to investigate the effects of the ion size and associated Jahn-Teller distortions (JTDs) on the electronic structure modifications. Doped LaMnO₃ thin films were grown on (1 0 0) SrTiO₃ and (1 1 0) NdGaO₃ substrates by pulsed-laser deposition with typical thickness of 250-300 nm. Temperature-dependent resistivity ρ(T) and magnetization M(T) were measured. The results indicate that the drastic changes in magneto-transport properties induced by the substitution of A-site ion and the splitting of the O K-edge pre-edge peak associated with the e_g(↑) and t_2g(↓) energy levels at low temperatures in La_1-xCa_xMnO₃ and La_1-xSr_xMnO₃ (x=0.3, 0.375) may both relate to the lattice disorder and the associated JTD effects on modifying the electronic structure of doped-LaMnO₃.

Original language	English
Pages (from-to)	1404-1408
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	404
Issue number	8-11
DOIs	https://doi.org/10.1016/j.physb.2008.12.038
State	Published - 1 May 2009

Keywords

Jahn-Teller distortion
LaMnO
XANES

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10.1016/j.physb.2008.12.038

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@article{e3d65d940bfa4dfbb563d774a0cc86a8,

title = "Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO3: Ion-size and the Jahn-Teller distortion effects",

abstract = "The temperature-dependent X-ray absorption near-edge spectroscopy (XANES) of LaMnO3 thin films doped with various divalent ions was systematically carried out to investigate the effects of the ion size and associated Jahn-Teller distortions (JTDs) on the electronic structure modifications. Doped LaMnO3 thin films were grown on (1 0 0) SrTiO3 and (1 1 0) NdGaO3 substrates by pulsed-laser deposition with typical thickness of 250-300 nm. Temperature-dependent resistivity ρ(T) and magnetization M(T) were measured. The results indicate that the drastic changes in magneto-transport properties induced by the substitution of A-site ion and the splitting of the O K-edge pre-edge peak associated with the eg(↑) and t2g(↓) energy levels at low temperatures in La1-xCaxMnO3 and La1-xSrxMnO3 (x=0.3, 0.375) may both relate to the lattice disorder and the associated JTD effects on modifying the electronic structure of doped-LaMnO3.",

keywords = "Jahn-Teller distortion, LaMnO, XANES",

author = "Tsai, {Y. T.} and Chang, {W. J.} and Huang, {S. W.} and Jiunn-Yuan Lin and Lee, {J. Y.} and Chen, {J. M.} and Kaung-Hsiung Wu and Uen, {T. M.} and Gou, {Y. S.} and Jenh-Yih Juang",

year = "2009",

month = may,

day = "1",

doi = "10.1016/j.physb.2008.12.038",

language = "English",

volume = "404",

pages = "1404--1408",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "8-11",

}

TY - JOUR

T1 - Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO3

T2 - Ion-size and the Jahn-Teller distortion effects

AU - Tsai, Y. T.

AU - Chang, W. J.

AU - Huang, S. W.

AU - Lin, Jiunn-Yuan

AU - Lee, J. Y.

AU - Chen, J. M.

AU - Wu, Kaung-Hsiung

AU - Uen, T. M.

AU - Gou, Y. S.

AU - Juang, Jenh-Yih

PY - 2009/5/1

Y1 - 2009/5/1

N2 - The temperature-dependent X-ray absorption near-edge spectroscopy (XANES) of LaMnO3 thin films doped with various divalent ions was systematically carried out to investigate the effects of the ion size and associated Jahn-Teller distortions (JTDs) on the electronic structure modifications. Doped LaMnO3 thin films were grown on (1 0 0) SrTiO3 and (1 1 0) NdGaO3 substrates by pulsed-laser deposition with typical thickness of 250-300 nm. Temperature-dependent resistivity ρ(T) and magnetization M(T) were measured. The results indicate that the drastic changes in magneto-transport properties induced by the substitution of A-site ion and the splitting of the O K-edge pre-edge peak associated with the eg(↑) and t2g(↓) energy levels at low temperatures in La1-xCaxMnO3 and La1-xSrxMnO3 (x=0.3, 0.375) may both relate to the lattice disorder and the associated JTD effects on modifying the electronic structure of doped-LaMnO3.

AB - The temperature-dependent X-ray absorption near-edge spectroscopy (XANES) of LaMnO3 thin films doped with various divalent ions was systematically carried out to investigate the effects of the ion size and associated Jahn-Teller distortions (JTDs) on the electronic structure modifications. Doped LaMnO3 thin films were grown on (1 0 0) SrTiO3 and (1 1 0) NdGaO3 substrates by pulsed-laser deposition with typical thickness of 250-300 nm. Temperature-dependent resistivity ρ(T) and magnetization M(T) were measured. The results indicate that the drastic changes in magneto-transport properties induced by the substitution of A-site ion and the splitting of the O K-edge pre-edge peak associated with the eg(↑) and t2g(↓) energy levels at low temperatures in La1-xCaxMnO3 and La1-xSrxMnO3 (x=0.3, 0.375) may both relate to the lattice disorder and the associated JTD effects on modifying the electronic structure of doped-LaMnO3.

KW - Jahn-Teller distortion

KW - LaMnO

KW - XANES

UR - http://www.scopus.com/inward/record.url?scp=64149124604&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2008.12.038

DO - 10.1016/j.physb.2008.12.038

M3 - Review article

AN - SCOPUS:64149124604

SN - 0921-4526

VL - 404

SP - 1404

EP - 1408

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 8-11

ER -

Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO₃: Ion-size and the Jahn-Teller distortion effects

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