A combined first principle calculations and experimental study on the spin-polarized band structure of Co-doped PbPdO2

被引：12

作者：

Chen, S. W. ^{[2
]}

Huang, S. C. ^{[3
]}

Guo, G. Y. ^{[1
,4
]}

Chiang, S. ^{[5
]}

Lee, J. M. ^{[2
]}

Chen, S. A. ^{[2
]}

Haw, S. C. ^{[2
]}

Lu, K. T. ^{[2
]}

Chen, J. M. ^{[2
]}

机构：

[1] Natl Chengchi Univ, Grad Inst Appl Phys, Taipei 11605, Taiwan

[2] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

[3] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[4] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[5] Rensselaer Polytech Inst, Dept Chem Engn, Troy, NY 12180 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 22期

关键词：

SEMICONDUCTORS; METALS;

D O I：

10.1063/1.4768293

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

With x-ray spectroscopy and first-principles calculations, we expose the electronic structure, near the Fermi level, of Co-doped PbPdO2 composed of O 2p-Pd 4d hybridized states with an additional contribution of a spin-polarized Co 3d state at either a greater or smaller energy. The spin-polarized Co 3d states interacting with O 2p-Pd 4d hybridized states cause spin splitting at the band edge. Fascinating physical properties such as high-temperature ferromagnetism thus arise in Co-doped PbPdO2. Results will help in the design of materials with desired electronic structures and the control of spin polarization with chemical doping. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768293]

引用

页数：4

共 50 条

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