La NMR probe of intra- and interlayer spin correlations in La1.2Sr1.6Ca0.2Mn2O7 above T-C

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	La NMR probe of intra- and interlayer spin correlations in La1.2Sr1.6Ca0.2Mn2O7 above T-C
	Feng, JW; Yu, KC; Ye, C
刊名	PHYSICAL REVIEW B
	2001-05-01
卷号	63 期号:18
英文摘要	Intra- and interlayer spin correlations inside each MnO2 bilayer in naturally layered La1.2Sr1.6Ca0.2Mn2O7 above T-C have been investigated by means of La-139 nuclear magnetic resonance. The ferromagnetic fluctuations of intralayer Mn spins, with a correlation size of two Mn ions and a correlation time of 10(-13) similar to 10(-12) s, appear far above the Curie temperature and they slow down with decreasing temperature. Most interestingly, we have found NMR evidence of the dynamically coherent fluctuations (possibly canted or antiferromagnetic) between Mn spins in two neighboring planes within each bilayer below 290 K above which the fluctuations from these two planes are incoherent.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Condensed Matter
研究领域[WOS]	Physics
关键词[WOS]	LAYERED MANGANITE LA1.4SR1.6MN2O7 ; GIANT MAGNETORESISTANCE ; MAGNETIC POLARONS ; ORDER ; LA1.2SR1.8MN2O7 ; LA-139 ; TRANSITION ; CLUSTERS ; OXIDES ; STATE
收录类别	SCI
语种	英语
WOS记录号	WOS:000168730200004
公开日期	2015-12-01
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/8601]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Feng, JW,Yu, KC,Ye, C. La NMR probe of intra- and interlayer spin correlations in La1.2Sr1.6Ca0.2Mn2O7 above T-C[J]. PHYSICAL REVIEW B,2001,63(18).
APA	Feng, JW,Yu, KC,&Ye, C.(2001).La NMR probe of intra- and interlayer spin correlations in La1.2Sr1.6Ca0.2Mn2O7 above T-C.PHYSICAL REVIEW B,63(18).
MLA	Feng, JW,et al."La NMR probe of intra- and interlayer spin correlations in La1.2Sr1.6Ca0.2Mn2O7 above T-C".PHYSICAL REVIEW B 63.18(2001).