Microstructure and twinning in epitaxial NiMnGa films

Guido J. Mahnke; M. Seibt; S. G. Mayr

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Microstructure and twinning in epitaxial NiMnGa films

机译：外延NiMnGa薄膜的微观结构和孪晶

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Although magnetic shape memory alloys have attracted large scientific interest, miniaturization as single-crystalline thin films is still a greatly unresolved issue. In the present work we investigate the microstructure of epitaxial NiMnGa thin films which are fabricated by sputter deposition on magnesium oxide substrates at elevated temperatures. Transmission and scanning electron microscopy as well as atomic force microscopy studies are employed to relate surface topography to twin formation in 7 M martensitic NiMnGa films. Additional findings include pore formation in substrate proximity as well as minor precipitation with reduced nickel and gallium contents.

机译：尽管磁性形状记忆合金已经引起了广泛的科学兴趣，但是作为单晶薄膜的小型化仍然是一个悬而未决的问题。在本工作中，我们研究了外延NiMnGa薄膜的微观结构，该薄膜是通过在高温下在氧化镁衬底上溅射沉积而制成的。利用透射和扫描电子显微镜以及原子力显微镜研究将表面形貌与7 M马氏体NiMnGa膜中的孪晶形成联系起来。其他发现包括在基材附近形成孔以及镍和镓含量降低的少量沉淀。

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《Physical review》 |2008年第1期|1-4|共4页
作者
Guido J. Mahnke; M. Seibt; S. G. Mayr;
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正文语种 eng
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thin film structure and morphology; deposition by sputtering; martensitic transformations;

机译：薄膜的结构和形态;通过溅射沉积;马氏体转变;

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1. Negative Magnetoresistance in Nanotwinned NiMnGa Epitaxial Films [J] . V. O. Golub, V. A. Chernenko, A. Apolinario, Scientific reports. . 2018,第1期

机译：Nanotwinned Nimnga外延膜中的负磁阻
2. Effect of substrate-twin-induced microstructure on transport properties of epitaxial Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub x/ films in a magnetic field [J] . Kim D.H., Miller D.J. IEEE Transactions on Applied Superconductivity . 1993,第1期

机译：孪生衬底诱导的微观结构对外延Tl / sub 2 / Ba / sub 2 / CaCu / sub 2 / O / sub x /薄膜在磁场中的传输性能的影响
3. Thermal stability of twins and strengthening mechanisms in differently oriented epitaxial nanotwinned Ag films [J] . Daniel Bufford, Haiyan Wang, Xinghang Zhang Journal of Materials Research . 2013,第13期

机译：不同取向的外延纳米孪晶Ag薄膜中孪晶的热稳定性和增强机理
4. EBSD characterization of crystallographic orientations and twin interfaces of modulated martensite in epitaxial NiMnGa thin film [C] . Bo Yang, Yudong Zhang, Zongbin Li International Conference on Textures of Materials . 2015

机译：外延Nimnga薄膜中调制马氏体的晶体取向和双界面的EBSD表征
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6. Negative Magnetoresistance in Nanotwinned NiMnGa Epitaxial Films [O] . V. O. Golub, V. A. Chernenko, A. Apolinario, -1

机译：纳米孪晶NiMnGa外延膜中的负磁阻
7. Twinned-domain-induced magnonic modes in epitaxial LSMO/STO films [O] . Wahlström, Erik, Macia, Ferran, Boschker, Jos Emiel, 2017

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8. Effect of substrate-twin-induced microstructure on transport properties of epitaxial Tl2Ba2CaCu2O(x) films in a magnetic field [R] . Kim, D H, Miller, D J, Hettinger, J D, 1992

机译：衬底双诱导微结构对磁场中外延Tl2Ba2CaCu2O（x）薄膜输运性质的影响

Microstructure and twinning in epitaxial NiMnGa films

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