Title of article
Comparison of electronic structures of orthorhombic and hexagonal manganites studied by X-ray absorption spectroscopy
Author/Authors
Asokan، نويسنده , , K. and Dong، نويسنده , , C.L. and Bao، نويسنده , , C.W. and Tsai، نويسنده , , H.M. and Chiou، نويسنده , , J.W. and Chang، نويسنده , , C.L. and Pong، نويسنده , , W.F. and Duran، نويسنده , , P. and Moure، نويسنده , , C. and Peٌa، نويسنده , , O.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
6
From page
821
To page
826
Abstract
Electronic structures of orthorhombic perovskite-type manganites (OM) and hexagonal manganites (HM) are compared by using X-ray absorption near edge structure spectroscopy. This study reveals that the environments around Mn and O ions in both the systems are different. These are reflected primarily in the lifting of degeneracy of the Mn 3d orbitals. Interestingly, the unoccupied Mn 3 d x 2 − y 2 orbital in HM is strongly hybridized with O 2p states and appears to be responsible for both long range orderings: ferroelectric ordering at high temperatures and ferromagnetic ordering at low temperatures.
Keywords
C. XANES , A. Manganites , D. Electronic structure , E. X-ray absorption spectroscopy
Journal title
Solid State Communications
Serial Year
2005
Journal title
Solid State Communications
Record number
1789992
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