Competition between lattice distortion and charge dynamics for the charge carriers of double-layered manganites

被引：56

作者：

Park, JH ^{[1
]}

Kimura, T

Tokura, Y

机构：

[1] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA

[2] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 305, Japan

[3] Univ Tokyo, Dept Appl Phys, Tokyo 113, Japan

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.58.R13330

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the characteristics of the charge carriers of the double-layered manganites, La2-2xSr1+2xMn2O7 (x=0.35, 0.40), using polarized O Is x-ray absorption spectroscopy. When the system undergoes the insulator to metal transition, the spectral weight is transferred to the absorption threshold, analogous to the Drude weight in optical absorption. The charge carriers in the metallic phase contain comparable amounts of in-plane and out-of-plane character. This result is due to the competition between the tetragonal lattice distortion and the charge dynamics that force the charge carriers out of and in the plane, respectively. [S0163-1829(98)51844-9].

引用

页码：13330 / 13333

页数：4

共 21 条

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