Molecular Auxetic Behavior of Epitaxial Co-Ferrite Spinel Thin Film

Matjaz Volant; Anna-Karin Axelsson; Frederic Aguesse; Neil M. Alford

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Molecular Auxetic Behavior of Epitaxial Co-Ferrite Spinel Thin Film

机译：外延铁素体尖晶石薄膜的分子辅助行为

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In functional oxide materials so-called molecular auxetic behavior is extremely rare. Here, it is reported in the CoFe_2O_4 spinel structure. A CoFe_2O_4 epitaxial thin film under compressive axial strain also reduces its cell dimensions in the transverse direction with a Poisson's ratio of-0.85. A hinge-like honeycomb network in the spinel structure is identified as being responsible for the negative Poisson's ratio. This phenomenon has a substantial effect on the functional properties of CoFe_2O_4 and enables the construction of a new class of nano-devices.

机译：在功能性氧化物材料中，所谓的分子膨胀行为极为罕见。在此，据报道为CoFe_2O_4尖晶石结构。 CoFe_2O_4外延薄膜在轴向压缩应变下，其横向尺寸也减小，泊松比为-0.85。尖晶石结构中的铰链状蜂窝网络被认为是负泊松比的原因。这种现象对CoFe_2O_4的功能特性有实质性影响，并能够构建新型的纳米器件。

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《Advanced Functional Materials》 |2010年第4期|644-647|共4页
作者
Matjaz Volant; Anna-Karin Axelsson; Frederic Aguesse; Neil M. Alford;
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Materials Research Laboratory University of Nova Gorica 5000 Nova Gorica (Slovenia) Department of Materials Imperial College London South Kensington Campus London SW7 2AX (United Kingdom);

Department of Materials Imperial College London South Kensington Campus London SW7 2AX (United Kingdom);

Department of Materials Imperial College London South Kensington Campus London SW7 2AX (United Kingdom);

Department of Materials Imperial College London South Kensington Campus London SW7 2AX (United Kingdom);

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1. Fabrication of epitaxial thin films of magnetic spinel materials by molecular beam epitaxy method [J] . T. Nagahama, Y. Matsuda, K. Tate, 日本磁気学会学術講演概要集 . 2012,第36期

机译：分子束外延法制备磁性尖晶石材料的外延薄膜
2. Ac conductivity and dielectric behavior of a - Si : H/c - Si1-y Ge-y/p - Si thin films synthesized by molecular beam epitaxial method [J] . Kadri Emna, Dhahri Khaled, Zaafouri Amira, Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2017,第期

机译：A - Si：H / C - Si1-Y Ge-Y / P - Si薄膜的AC电导率和介电行为通过分子束外延法合成
3. Magnetic properties of epitaxial spinel CoCr_2O_4 films grown by molecular beam epitaxy (MBE) [J] . K. Tate, T. Nagahama, T. Shimada 日本磁気学会学術講演概要集 . 2012,第36期

机译：分子束外延（MBE）生长的外延尖晶石CoCr_2O_4薄膜的磁性
4. Preparation of Sm-Co Epitaxial Thin Films on Cr(100) Single-Crystal Underlayers by Molecular Beam Epitaxy [C] . M. OHTAKE, T. YANAGAWA, Y. NONAKA, nternational Workshop on Rare-Earth Permanent Magnets and their Applications . 2012

机译：分子束外延的Cr（100）单晶底层SM-CO外延薄膜的制备
5. Molecular beam epitaxial growth and phase transformation behaviors of Heusler-type single crystal ferromagnetic shape memory thin films. [D] . Shih, Chung-Ping. 2005

机译：Heusler型单晶铁磁形状记忆薄膜的分子束外延生长和相变行为。
6. Epitaxial growth of highly-crystalline spinel ferrite thin films on perovskite substrates for all-oxide devices [O] . Jarrett A. Moyer, Ran Gao, Peter Schiffer, -1

机译：在全氧化物器件的钙钛矿衬底上外延生长高结晶尖晶石铁氧体薄膜
7. Bulk Single Crystal‐Like Structural and Magnetic Characteristics of Epitaxial Spinel Ferrite Thin Films with Elimination of Antiphase Boundaries [O] . Amit V. Singh, Behrouz Khodadadi, Jamileh Beik Mohammadi, 2017

机译：外延尖晶石铁氧体薄膜的散装单晶的结构和磁特性，消除反相边界
8. Deposition of hetero-epitaxial In(sub 2)O(sub 3) thin films by molecular beam epitaxy [R] . Taga, N., Maekawa, M., Shigesato, Y., 1996

机译：通过分子束外延沉积异质外延In（sub 2）O（sub 3）薄膜

Molecular Auxetic Behavior of Epitaxial Co-Ferrite Spinel Thin Film

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