Structural, magnetic, and magneto-optical properties of Co-doped CeO2-δ films

被引：38

作者：

Bi, Lei ^{[1
]}

Kim, Hyun-Suk ^{[1
]}

Dionne, Gerald F. ^{[1
,2
]}

Speakman, Scott A. ^{[1
]}

Bono, D. ^{[1
]}

Ross, C. A. ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] MIT, Lincoln Lab, Lexington, MA 02420 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期

关键词：

D O I：

10.1063/1.2833839

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetically doped CeO(2) is a promising dilute magnetic semiconductor and may also be useful in magneto-optical applications. Ce(1-x)Co(x)O(2-delta) (x=0, 0.02, 0.06, 0.15, and 0.25) films were deposited by pulsed laser deposition on MgO(100) substrates and their structural, magnetic, and magneto-optical properties were characterized. The films show a textured ceria single phase with (111) preferred orientation. All the Co-doped samples show room temperature ferromagnetism and large magnetic anisotropy with an out-of-plane easy axis. Magneto-optical measurements indicate that the Co-doped films also have high saturation Faraday rotation ranging from 230 to 6000 deg/cm depending on the Co concentration, and their refractive index and extinction coefficient also increase with Co concentration. (c) 2008 American Institute of Physics.

引用

页数：3

共 16 条

[1] CONTROL BY HYDROGEN ANNEALING OF THE MAGNETO-OPTICAL PROPERTIES OF TETRAHEDRAL COBALT IN YIG [J].