Magneto-structural correlations in Pr0.15Gd0.85Mn2Ge2

Dincer I; Elerman Y; Elmali A; Ehrenberg H; Fuess H; Baehtz C

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Magneto-structural correlations in Pr0.15Gd0.85Mn2Ge2

机译：Pr0.15Gd0.85Mn2Ge2中的磁结构相关性

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Magneto-structural correlations in Pr0.15Gd0.85Mn2Ge2 have been studied by synchrotron diffraction in the temperature range between 11 and 300 K. This compound crystallizes in the ThCr2Si2-type structure (space group 14/mmm). The unit cell parameters a and c were determined by Rietveld refinements as a function of temperature. Anomalies in the temperature dependence of the unit cell parameters a and c, the c/a ratio and the unit cell volume V at about 240 and 140 K, which is close to the magnetic phase transition temperatures, indicate a pronounced magneto-structural correlation. Spontaneous volume change and linear magnetostrictions are derived as a function of temperature. (c) 2006 Elsevier Ltd. All rights reserved.

机译：通过在11 K和300 K之间的温度范围内通过同步加速器衍射研究了Pr0.15Gd0.85Mn2Ge2中的磁结构相关性。该化合物在ThCr2Si2型结构（空间群14 / mmm）中结晶。晶胞参数a和c通过Rietveld改进确定为温度的函数。晶胞参数a和c，c / a比和在大约240和140 K处的晶胞体积V的温度依赖性的异常接近磁相变温度，这表明明显的磁结构相关性。自发的体积变化和线性磁致伸缩是温度的函数。（c）2006 Elsevier Ltd.保留所有权利。

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来源
《Solid State Communications》 |2006年第5期|p. 245-247|共3页
作者
Dincer I; Elerman Y; Elmali A; Ehrenberg H; Fuess H; Baehtz C;
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作者单位

Ankara Univ, Fac Engn, Dept Engn Phys, TR-06100 Ankara, Turkey;

Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany;

Hamburger Synchrotronstrahlungslabor, D-22603 Hamburg, Germany;

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正文语种 eng
中图分类固体物理学;
关键词
rare-earth compounds; transition metal compounds; magnetically ordered materials; synchrotron radiation; MAGNETIC PHASE-TRANSITION; NEUTRON-DIFFRACTION; POWDER DIFFRACTION; SILICIDES; BEHAVIOR; SYSTEM; MN;

机译：稀土化合物;过渡金属化合物;磁性有序材料;同步辐射;磁性相变;中子衍射;粉末衍射;硅化物;行为;系统;MN;

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Magneto-structural correlations in Pr0.15Gd0.85Mn2Ge2

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