2006年4月
Local spin ordering in the antiferromagnetic as well as paramagnetic LaMnO3 phase revealed by polarized spin-selected 1s -> 3d absorption spectra
PHYSICAL REVIEW B
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- 巻
- 73
- 号
- 13
- 開始ページ
- 134405
- 終了ページ
- 5
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevB.73.134405
- 出版者・発行元
- AMERICAN PHYSICAL SOC
Spin-selected x-ray absorption near edge structures have been studied on single crystal LaMnO3 at 45 K (A-type antiferromagnetic phase) and at 273 K (paramagnetic phase) with polarized x rays. Observed polarization characters have been interpreted in terms of hybridization of Mn 4p orbitals with 3d orbitals of adjacent Mn ions combined with spin-invariance upon transitions. Almost no temperature dependence was observed in the spectra of both polarization, indicating that short-range spin order exists even at a temperature much higher than T-N. An apparent contradiction of the result with bulk magnetic properties can be resolved by assuming that the x-ray absorption process, being so fast, is sensitive to temporal local structures in the vicinity of the central absorbing Mn ion.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevB.73.134405
- ISSN : 1098-0121
- CiNii Articles ID : 80019079574
- Web of Science ID : WOS:000237153800059