Asymmetric behavior of charge-orbital order in electron/hole-doped A-site ordered manganites Eu(Ba1-yLay)Mn2O6 and (Eu1-xCax)BaMn2O6

被引：7

作者：

Akahoshi, D.

Uchida, M.

Arima, T.

Tomioka, Y.

Tokura, Y.

机构：

[1] AIST, CERC, Tsukuba, Ibaraki 3058562, Japan

[2] CO AIST, JST, ERATO, SSS, Tsukuba, Ibaraki 3058562, Japan

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

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

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.74.012402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the electron- and hole-doping effects on the charge-orbital order in the ordered-perovskite manganite, EuBaMn2O6. In the electron-doping case of Eu(Ba1-yLay)Mn2O6, the stacking manner of the commensurate charge-orbital ordered (CO-OO) sheets is variable between AABB and ABAB types, because of the competition between Jahn-Teller distortion and Coulomb interaction energies arising from Eu/Ba cation ordering. In the hole-doping case of (Eu1-xCax)BaMn2O6, on the other hand, the switching of the stacking pattern of the incommensurate CO-OO sheets does not occur, and the stacking pattern is perhaps identical with that of conventional solid-solution manganites (AAAA type).

引用

页数：4

共 23 条

[1] Charge-orbital ordering near the multicritical point in A-site ordered perovskites SmBaMn2O6 and NdBaMn2O6 -: art. no. 064418 [J].