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【材料版系列跨年活动】分享08年行业内的牛文献，3-5金币奖励
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分享08年行业内的牛文献 格式大致为： 【题目】 【作者】 【摘要】 【刊名及期卷】 【下载链接】 每个分享的链接给予3-5金币的奖励， 每篇牛文献的介绍分占不同楼层， 奖励可累加，欢迎提供更多资料。 [ Last edited by hslining on 2009-1-3 at 10:16 ] |
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hslining(金币+3,VIP+0):支持!
hslining(金币+3,VIP+0):支持!
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【题目】 Electric field control of local ferromagnetism using a magnetoelectric multiferroic 【期刊来源】Nature Materials 【作者或课题组】ChuYH,RameshR 【摘要】Multiferroics are of interest for memory and logic device applications, as the coupling between ferroelectric and magnetic properties enables the dynamic interaction between these order parameters. Here, we report an approach to control and switch local ferromagnetism with an electric field using multiferroics. We use two types of electromagnetic coupling phenomenon that are manifested in heterostructures consisting of a ferromagnet in intimate contact with the multiferroic BiFeO3. The first is an internal, magnetoelectric coupling between antiferromagnetism and ferroelectricity in the BiFeO3 film that leads to electric-field control of the antiferromagnetic order. The second is based on exchange interactions at the interface between a ferromagnet (Co0.9Fe0.1) and the antiferromagnet.We have discovered a one-to-one mapping of the ferroelectric and ferromagnetic domains, mediated by the colinear coupling between the magnetization in the ferromagnet and the projection of the antiferromagnetic order in the multiferroic. Our preliminary experiments reveal the possibility to locally control ferromagnetism with an electric field. 【链接】http://www.namipan.com/d/ChuYH_R ... 5cd62d5319e9a1c2100 |
7楼2009-01-09 18:31:20
★ ★ ★
纳米镍粉(金币+3,VIP+0):有下载的链接吗?先谢谢了
纳米镍粉(金币+3,VIP+0):有下载的链接吗?先谢谢了
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【题目】Matching Glass-Forming Ability with the Density of the Amorphous Phase 【作者】Y. Li,1,2* Q. Guo,1,2 J. A. Kalb,1,3 C. V. Thompson1,3* 【刊名及期卷】Science 19 December 2008: Vol. 322. no. 5909, pp. 1816 - 1819 【摘要】 The density of the amorphous phase of metals is generally thought to be related to glass formation, but this correlation has not been demonstrated experimentally to date. In this work, systematic deflection measurements using microcantilevers and a combinatorial deposition method show a correlation between glass-forming ability and the density change upon crystallization over a broad compositional range in the copper-zirconium binary system. Distinct peaks in the density of the amorphous phase were found to correlate with specific maxima in the critical thickness for glass formation. Our findings provide quantitative data for the development of structural models of liquids that are readily quenched to the amorphous state. The experimental method developed in this work can facilitate the search for new glass-forming alloys. |
2楼2009-01-02 20:37:20
3楼2009-01-03 10:04:33
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hslining(金币+3,VIP+0):原创，鼓励！
hslining(金币+3,VIP+0):原创，鼓励！
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【题目】Crystal chemistry and Calphad modeling of the r phase 【作者】J.-M. Joubert 【摘要】A systematic review of the crystal chemical properties of the r phase is presented, with special emphasis on the atomic order, i.e. the distribution of the atoms on the different sites of the crystal structure. The data available in the literature have been systematically assessed, and are complemented by an experimental investigation in the following systems: Al–Nb, Al–Ta, Cr–Mn, Cr–Os, Cr–Re, Cr–Ru, Co–Mo, Fe–Mo, Fe–Re, Mn–Mo, Mn–Re, Mn–V, Mo–Re, Nb–Pt, Nb–Re, Ni– V, Pd–Ta, Re–V, Rh–Ta and Ru–W. The properties are analyzed as a function of composition and the nature and atomic size of the elements involved. The possibility of an order–disorder transition has also been reviewed and completed by diffraction experiments in two systems (Cr–Mn and Ni–V). First-principles calculations on the r phase are reviewed in line with the Calphad approach. An analysis of the literature data concerning the Calphad modeling of systems involving the r phase has been made. The different models used are presented and discussed. The conclusions of crystal structure data analysis are used to make some recommendations about the choice of a model in the frame of a Calphad assessment. 【刊名及期卷】Progress in Materials Science 53 (2008) 528–583 【下载链接】http://www.namipan.com/d/Hartsch ... 8500605f3a5e1716a00 |
4楼2009-01-04 11:03:12
