EuTiO3-δ薄膜磁性质的生长应变调控效应研究
Growth Strain Effect on the Magnetic Behavior of EuTiO3-δ Epitaxial Thin Films
DOI: 10.12677/APP.2018.811057, PDF,    国家自然科学基金支持
作者: 梁 熠, 李 硕, 杨 钖, 赵茹欣, 卢 豪, 赵 蒙, 赵 润*：苏州科技大学数理学院，江苏省微纳热流技术与能源应用重点实验室，江苏 苏州
关键词: EuTiO3-δ薄膜；生长应变；铁磁性；晶体结构；EuTiO3-δ Thin Film； Growth Strain； Ferromagnetic Behavior； Crystal Structure
摘要: 本文系统地研究了应变EuTiO3-δ (ETO)薄膜的沉积过程、晶体结构和磁性质，该薄膜是通过脉冲激光沉积制备。由于高真空的沉积条件，沉积过程中产生了+2.48%的生长应变。此外通过XRD测试确定了ETO薄膜的外延关系为(002)ETO//(002)STO和[200]ETO//[200]STO。在此张应变的作用下，ETO薄膜在3.6 K附近出现了铁磁转变。并在低于该温度区间，发现了自旋玻璃态的现象。最终确定了低于TC温度条件下磁性主导机理仍是铁磁交换。
Abstract: This paper investigated the preparation, structure, and magnetic behavior of strained EuTiO3-δ (ETO) thin films, which were prepared by pulsed laser deposition under low oxygen pressure. Due to the specific atmosphere, the growth strain can be generated along with the deposition and its value is +2.48%. In addition, the epitaxial relationship is (002)ETO//(002)STO and[200]ETO//[200]STO confirmed via XRD measurement. Under such tension, the ETO films exhibit a ferromagnetic transition around 3.6 K and reenter into a spinglass phase at a lower temperature, while the magnetic behavior is dominated by the ferromagnetic exchange below TC.
文章引用：梁熠, 李硕, 杨钖, 赵茹欣, 卢豪, 赵蒙, 赵润. EuTiO3-δ薄膜磁性质的生长应变调控效应研究[J]. 应用物理, 2018, 8(11): 449-454. https://doi.org/10.12677/APP.2018.811057

参考文献

[1] Eerenstein, W., Mathur, N.D. and Scott, J.F. (2006) Multiferroic and Magnetoelectric Materials. Nature, 442, 759-765. [Google Scholar] [CrossRef] [PubMed]
[2] Spaldin, N.A. (2017) Multiferroics: From the Cosmically Large to the Subatomically Small. Nature Reviews Materials, 2, Article ID: 17017. [Google Scholar] [CrossRef] 
[3] Katsufuji, T. and Takagi, H. (2001) Coupling between Magnetism and Dielectric Properties in Quantum Paraelectric EuTiO3. Physical Review B, 64, Article ID: 054415. [Google Scholar] [CrossRef] 
[4] Fennie, C.J. and Rabe, K.M. (2006) Magnetic and Electric Phase Control in Epitaxial EuTiO3 from First Principles. Physical Review Letters, 97, Article ID: 267602. [Google Scholar] [CrossRef] 
[5] Lee, J.H., Fang, L., Vlahos, E., Ke, X., Jung, Y.W., Kourkoutis, L.F., Kim, J.W., Ryan, P.J., Heeg, T., Roeckerath, M., Goian, V., Bernhagen, M., Uecker, R., Hammel, P.C., Rabe, K.M., Kamba, S., Schubert, J., Freeland, J.W., Muller, D.A., Fennie, C.J., Schiffer, P., Gopalan, V., John-ston-Halperin, E. and Schlom, D.G. (2010) A Strong Ferroelectric Ferromagnet Created by Means of Spin-Lattice Coupling. Nature, 466, 954-958. [Google Scholar] [CrossRef] [PubMed]
[6] Takahashi, K.S., Ishizuka, H., Murata, T., Wang, Q.Y., Tokura, Y., Nagaosa, N. and Kawasaki, M. (2018) Anomalous Hall Effect Derived from Multiple Weyl Nodes in High-Mobility EuTiO3 Films. Science Advances, 4, Article ID: 7880. [Google Scholar] [CrossRef] [PubMed]
[7] Fujita, K., Wakasugi, N., Murai, S., Zong, Y. and Tanaka, K. (2009) High-Quality Antiferromagnetic EuTiO3 Epitaxial Thin Films on SrTiO3 Prepared by Pulsed Laser Deposition and Postannealing. Applied Physics Letters, 94, Article ID: 062512. [Google Scholar] [CrossRef] 
[8] Zhao, R., Li, W.W., Chen, L., Meng, Q.Q., Yang, J., Wang, H., Wang, Y.Q., Tang, R.J. and Yang, H. (2012) Conduction Mech-anisms of Epitaxial EuTiO3 Thin Films. Applied Physics Letters, 101, Article ID: 102901. [Google Scholar] [CrossRef] 
[9] Allieta, M., Scavini, M., Spalek, L.J., Scagnoli, V., Walker, H.C., Panagopoulos, C., Saxena, S.S., Katsufuji, T. and Mazzoli, C. (2012) Role of Intrinsic Disorder in the Structural Phase Transition of Magnetoelectric EuTiO3. Physical Review B, 85, Article ID: 184107. [Google Scholar] [CrossRef] 
[10] Lee, J.H. and Rabe, K.M. (2010) Epitaxial-Strain-Induced Multiferroicity in SrMnO3 from First Principles. Physical Review Letters, 104, Article ID: 207204. [Google Scholar] [CrossRef] 
[11] Schlom, D.G., Chen, L.Q., Fennie, C.J., Gopalan, V., Muller, D.A., Pan, X., Ramesh, R. and Uecker, R. (2014) Elastic Strain Engineering of Ferroic Oxides. MRS Bulletin, 39, 118-130. [Google Scholar] [CrossRef] 
[12] Chen, D., Nelson, C.T., Zhu, X., Serrao, C.R., Clarkson, J.D., Wang, Z., Gao, Y., Hsu, S.L., Dedon, L.R., Chen, Z., Yi, D., Liu, H.J., Zeng, D., Chu, Y.H., Liu, J., Schlom, D.G. and Ramesh, R. (2017) A Strain-Driven Antiferroelectric-to-Ferroelectric Phase Transition in La-Doped BiFeO3 Thin Films on Si. Nano Letters, 17, 5823-5829. [Google Scholar] [CrossRef] [PubMed]
[13] Zhang, W., Ramesh, R., MacManus-Driscoll, J.L. and Wang, H. (2015) Multifunctional, Self-Assembled Oxide Nanocomposite Thin Films and Devices. MRS Bulletin, 40, 736-745. [Google Scholar] [CrossRef] 
[14] Akahoshi, D., Horie, H., Sakai, S. and Saito, T. (2013) Ferromagnetic Behavior in Mixed Valence Europium (Eu2+/Eu3+) Oxide EuTi1−xMxO3 (M  =  Al3+ and Ga3+). Applied Physics Letters, 103, Article ID: 172407. [Google Scholar] [CrossRef] 
[15] Akamatsu, H., Kumagai, Y., Oba, F., Fujita, K., Murakami, H., Tanaka, K. and Tanaka, I. (2011) Antiferromagnetic Superexchange via 3d States of Titanium in EuTiO3 as Seen from Hybrid Hartree-Fock Density Functional Calculations. Physical Review B, 83, Article ID: 214421. [Google Scholar] [CrossRef] 
[16] Ryan, P.J., Kim, J.W., Birol, T., Thompson, P., Lee, J.H., Ke, X., Normile, P.S., Karapetrova, E., Schiffer, P., Brown, S.D., Fennie, C.J. and Schlom, D.G. (2013) Reversible Control of Magnetic Interactions by Electric Field in a Single-Phase Material. Nature Communications, 4, Article ID: 1334. [Google Scholar] [CrossRef] [PubMed]
[17] Zong, Y., Fujita, K., Akamatsu, H., Murai, S. and Tanaka, K. (2011) Ferromagnetic Properties with Reentrant Spin-Glass Behavior in Amorphous EuZrO3 Thin Film. Physica Status Solidi C, 8, 3051-3054. [Google Scholar] [CrossRef] 

为你推荐