Correlation of electronic structure and ordered charge and orbital patterns for single-layered manganites in a wide hole-doping range (0≤x≤1)

被引：16

作者：

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

Arima, T.

Onoda, S.

Okimoto, Y.

Tokunaga, Y.

Mathieu, R.

Yu, X. Z.

He, J. P.

Kaneko, Y.

Matsui, Y.

Nagaosa, N.

Tokura, Y.

机构：

[1] Japan Sci & Technol Agcy, ERATO, Spin Superstruct Project & Multiferro Project, Tsukuba, Ibaraki 3058562, Japan

[2] Soongsil Univ, Dept Phys, Tsukuba, Ibaraki 156743, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[4] AIST, AIST Tsukuba Cent 4, CERC, Tsukuba, Ibaraki 3058562, Japan

[5] NIMS, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[6] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.75.144407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the doping-dependent evolution of the charge-orbital ordering (CO-OO) phase using optical spectroscopy of a series of single-layer manganites, La1-xSr1+xMnO4 (x=0 and 1) and Pr1-xCa1+xMnO4 (0.3 <= x <= 0.7). We found that the electronic response of the CO-OO phase changes asymmetrically with respect to the addition or removal of e(g) electrons from x=1/2. Especially, low-energy optical spectra depend strongly on the modulation vector of striped phase in a higher doping region (x >= 1/2). This finding highlights the role of the nanoscale structure of e(g) ordering in the electronic property of the striped phase in the layered manganite.

引用

页数：6

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