Preparation and Magnetic Properties of (La1−xSr1+x)(Mn0.5Co0.5)O4

淡江大學機構典藏 > 理學院 > 化學學系暨研究所 > 期刊論文 > Item 987654321/61685

請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/61685

題名:	Preparation and Magnetic Properties of (La1−xSr1+x)(Mn0.5Co0.5)O4
作者:	Lin, M. Y.;Wang, Y. F.;Ling, D. C.;Sheu, H. S.;Kao, H.C.I.
貢獻者:	淡江大學化學學系
關鍵詞:	(La1−x Sr1+x )(Mn0.5Co0.5)O4;K2NiF4;Unit cell parameters;Paramagnetic;Ferromagnetic
日期:	2010-07
上傳時間:	2011-10-15 23:28:39 (UTC+8)
出版者:	New York: Springer New York LLC
摘要:	A series of single phase (La1−x Sr1+x ) (Mn0.5Co0.5)O4 (0≤x≤0.40) materials with a tetragonal K2NiF4 structure was prepared by a solid state reaction method at 1400 or 1450 °C with a short period of heating time. Powder X-ray diffraction (XRD) and the Rietveld refinement method were employed for the structural analysis. Unit cell a- and c-axes decrease with increasing amount of Sr substitution. A discrepancy between the zero-field-cooled and the field-cooled magnetization is observed in all samples investigated below a characteristic temperature, T , which likely arises from the canted nature of spins or the random freezing of spins. It appears that T decreases with increasing amount of Sr substitution, which is possibly due to the enhancement of chemical pressure induced by Sr and a corresponding increases of the valence of Mn and/or Co.
關聯:	Journal of Superconductivity and Novel Magnetism 23(5), pp.721-724
DOI:	10.1007/s10948-010-0674-3
顯示於類別:	[化學學系暨研究所] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
1557-1939_23(5)p721-724.pdf		370Kb	Adobe PDF	278	檢視/開啟
Preparation and Magnetic Properties of (La1−xSr1+x)(Mn0.5Co0.5)O4.pdf		370Kb	Adobe PDF	0	檢視/開啟

在機構典藏中所有的資料項目都受到原著作權保護.

TAIR相關文章