Co Valence by K-Edge X-ray Absorption Spectroscopy, Magnetic Properties, and Structure of Polycrystalline Bulk Zn1 xCoxO
Resource
IEEE TRANSACTIONS ON MAGNETICS 41(10), 2727-2729
Journal
IEEE TRANSACTIONS ON MAGNETICS 41(10)
Pages
2727-2729
Date Issued
2005-10
Date
2005-10
Author(s)
Peleckis, G.
Wang, X.L.
Liu, R.S.
Dou, S.X.
DOI
246246/200611150121266
Abstract
We report on magnetic properties and a Co K-edge X-ray absorption spectroscopy (XAS) study of polycrystalline bulk Zn1 Co O
( = 0 10 0 15 0 17) samples. All samples show paramagnetic behavior and no ferromagnetism was observed. XAS results showed
that for all samples the valence of Co is 2+. Spin state assessment derived from Currie–Weiss fitting indicated a possible spin state
transition from Co2+ high spin to Co2+ low spin. Calculated e values for samples with = 0 10 and 0 15 indicated an orbital
contribution to the effective magnetic moment of the Co ion.
Subjects
Paramagnetic materials
spintronics
Publisher
Taipei:National Taiwan University Dept Chem Engn
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
2407.pdf
Size
209.57 KB
Format
Adobe PDF
Checksum
(MD5):57abd6d87f8ec0993fe88cdee3356266