Optical investigation of the metal-insulator transition in the manganite films with the thickness dependence

被引：3

作者：

Seo, Il Wan ^{[1
]}

Lee, Y. S. ^{[1
]}

Seo, Ji Won ^{[2
]}

Baek, Seung-Hyub ^{[3
]}

机构：

[1] Soongsil Univ, Dept Phys, Seoul 06978, South Korea

[2] Yonsei Univ, Dept Phys, Wonju 26493, South Korea

[3] Korea Inst Sci & Technol, Ctr Elect Mat, Seoul 02792, South Korea

来源：

CURRENT APPLIED PHYSICS | 2019年 / 19卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

La0.67Sr0.33MnO3 (LSMO) films; Metal-insulator transition; Thickness dependence; Electron-phonon coupling; DOUBLE-EXCHANGE;

D O I：

10.1016/j.cap.2019.06.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the optical response of La0.67Sr0.33MnO3 (LSMO) films which show the metal-insulator transition (MIT) with the film thickness dependence. By using spectroscopic ellipsometric technique we found that the optical spectra below the charge transfer gap exhibited the coherent-incoherent crossover behavior through MIT. The formation of the incoherent mode near 1.5 eV was reminiscent of the polaron absorption which had been widely observed in various manganites. We suggest that the electron-phonon coupling could be enhanced due to low dimensionality in the ultrathin LSMO film in consideration of orbital polarization.

引用

页码：1019 / 1023

页数：5

共 50 条

[1] Metal-insulator transition induced by postdeposition annealing in low doped manganite films
Sirena, M.
Haberkorn, N.
Granada, M.
Steren, L. B.
Guimpel, J.
JOURNAL OF APPLIED PHYSICS, 2009, 105 (03)
[2] Metal-insulator transition in zirconium oxynitride films
Wu, Jiankun
Li, Zhaoguo
Peng, Liping
Yi, Yong
Zhang, Jicheng
PHYSICA B-CONDENSED MATTER, 2022, 624
[3] Room temperature metal-insulator transition observed in Pb substituted lanthanum manganite
Yadav, Akash
Shah, Jyoti
Tripathi, Rahul
Kotnala, R. K.
CERAMICS INTERNATIONAL, 2017, 43 (13) : 10508 - 10514
[4] Unusual metal-insulator transition in disordered ferromagnetic films
Muttalib, K. A.
Woelfle, P.
Misra, R.
Hebard, A. F.
PHYSICA B-CONDENSED MATTER, 2012, 407 (20) : 4023 - 4026
[5] Investigation of the Metal-insulator Transition in n-3C-SiC Epitaxial Films
Lebedev, A. A.
Abramov, P. L.
Agrinskaya, N. V.
Kozub, V. I.
Kuznetsov, A. N.
Lebedev, S. P.
Oganesyan, G. A.
Chernyaev, A. V.
Shamshur, D. V.
Skvortsova, M. O.
SILICON CARBIDE AND RELATED MATERIALS 2008, 2009, 615-617 : 335 - 338
[6] Metal-insulator transition in MnS
Chernov, Evgenii D.
Lukoyanov, Alexey, V
PHYSICA SCRIPTA, 2025, 100 (03)
[7] The metal-insulator transition: A perspective
Edwards, PP
Johnston, RL
Rao, CNR
Tunstall, DP
Hensel, F
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1998, 356 (1735): : 5 - 22
[8] Optical response of FeS due to metal-insulator transition at pressure
Chen, L.
Matsunami, M.
Nanba, T.
Kobayashi, H.
PHYSICA B-CONDENSED MATTER, 2006, 378-80 : 1116 - 1117
[9] Metal-insulator transition induced in CaVO3 thin films
Gu, M. (mg8yd@virginia.edu), 1600, American Institute of Physics Inc. (113):
[10] On the metal-insulator transition in vanadium dioxide
Fujita, Shigeji
Jovaini, Azita
Godoy, Salvador
Suzuki, Akira
PHYSICS LETTERS A, 2012, 376 (44) : 2808 - 2811

← 1 2 3 4 5 →