$Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction$

Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction

碩士 === 淡江大學 === 物理學系碩士班 === 97 === We report the x-ray multiple-wave diffraction on a high quality single crystal hematite α-Fe2O3. Multiple-wave diffraction is a very useful method to study the phase problem of material structure. In this experiment, we observed the pre-edge (E=7115 eV) feature nea...

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Main Authors:	Yen-Chung Lai, 賴彥仲
Other Authors:	Chao-Hung Du
Format:	Others
Language:	zh-TW
Online Access:	http://ndltd.ncl.edu.tw/handle/80267259462855096402

id	ndltd-TW-097TKU05198013
record_format	oai_dc
spelling	ndltd-TW-097TKU051980132015-10-13T16:13:45Z http://ndltd.ncl.edu.tw/handle/80267259462855096402 Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction α-Fe2O3原子結構的複繞射研究 Yen-Chung Lai 賴彥仲碩士淡江大學物理學系碩士班 97 We report the x-ray multiple-wave diffraction on a high quality single crystal hematite α-Fe2O3. Multiple-wave diffraction is a very useful method to study the phase problem of material structure. In this experiment, we observed the pre-edge (E=7115 eV) feature near the Fe K-edge (E=7123 eV) from the absorption spectrum of α-Fe2O3. Using multiple-diffraction and analyzing the interference effect from the three-beam diffraction case as a function of incident x-ray energy, we observed that the phase of the structure factor changes at the pre-edge and K-edge, respectively. This double-jump of the phase suggests that hematite α-Fe2O3 has a complicated electronic structure. Chao-Hung Du 杜昭宏學位論文 ; thesis 52 zh-TW
collection	NDLTD
language	zh-TW
format	Others
sources	NDLTD
description	碩士 === 淡江大學 === 物理學系碩士班 === 97 === We report the x-ray multiple-wave diffraction on a high quality single crystal hematite α-Fe2O3. Multiple-wave diffraction is a very useful method to study the phase problem of material structure. In this experiment, we observed the pre-edge (E=7115 eV) feature near the Fe K-edge (E=7123 eV) from the absorption spectrum of α-Fe2O3. Using multiple-diffraction and analyzing the interference effect from the three-beam diffraction case as a function of incident x-ray energy, we observed that the phase of the structure factor changes at the pre-edge and K-edge, respectively. This double-jump of the phase suggests that hematite α-Fe2O3 has a complicated electronic structure.
author2	Chao-Hung Du
author_facet	Chao-Hung Du Yen-Chung Lai 賴彥仲
author	Yen-Chung Lai 賴彥仲
spellingShingle	Yen-Chung Lai 賴彥仲 Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
author_sort	Yen-Chung Lai
title	Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
title_short	Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
title_full	Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
title_fullStr	Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
title_full_unstemmed	Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction
title_sort	study of atomic structure of α-fe2o3 using multiple x-ray diffraction
url	http://ndltd.ncl.edu.tw/handle/80267259462855096402
work_keys_str_mv	AT yenchunglai studyofatomicstructureofafe2o3usingmultiplexraydiffraction AT làiyànzhòng studyofatomicstructureofafe2o3usingmultiplexraydiffraction AT yenchunglai afe2o3yuánzijiégòudefùràoshèyánjiū AT làiyànzhòng afe2o3yuánzijiégòudefùràoshèyánjiū
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Study of atomic structure of α-Fe2O3 using multiple X-ray diffraction

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