Magnetic Dead Layers in La0.7Sr0.3MnO3 Revisited

被引：16
|
作者：
Porter, S. B. [1 ,2 ]
Venkatesan, M. [1 ,2 ]
Dunne, P. [3 ]
Doudin, B. [3 ]
Rode, K. [1 ,2 ]
Coey, J. M. D. [1 ,2 ]
机构：
[1] Trinity Coll Dublin, CRANN, Dublin 2, Ireland
[2] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland
[3] IPCMS, F-67034 Strasbourg, France
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2017年 / 53卷 / 11期
基金：
爱尔兰科学基金会;
关键词：
D-zero magnetism; ferromagnetic thin films; La0.7Sr0.3MnO3; magnetic dead layers; mixed-valence manganites; SrTiO3;
D O I：
10.1109/TMAG.2017.2731124
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The magnetic dead layers in films a few nanometers thick are investigated for La0.7Sr0.3MnO3 on SrTiO3(STO), LaAlO3(LAO), and (LaAlO3)(0.3)(Sr2TaAlO6)(0.7) ( LSAT) substrates. An anomalous moment found to persist above the Curie temperature of the La0.7Sr0.3MnO3 films is not attributed to the films, but to oxygen vacancies at or near the surface of the substrate. The contribution to the moment from the substrate is as high as 20 mu B/nm(2) in the case of STO or LSAT. The effect is increased by adding an STO cap layer. Taking this d-zero magnetism into account, extrapolated magnetic dead-layer thicknesses of 0.8, 1.5, and 3 nm are found for the manganite films grown on LSAT, STO, and LAO substrates, respectively. An STO cap layer eliminates the LSMO dead layer.
引用
收藏
页数：4
相关论文
共 50 条
  • [21] Fabrication of La0.7Sr0.3MnO3/La0.5Sr0.5CoO3/La0.7Sr0.3MnO3 heterostructures for spin valve applications
    Robson, MC
    Ogale, SB
    Godfrey, R
    Venkatesan, T
    Johnson, M
    Ramesh, R
    SCIENCE AND TECHNOLOGY OF MAGNETIC OXIDES, 1998, 494 : 243 - 248
  • [22] Hydrothermal reaction for the preparation of La0.7Ca0.3MnO3 and La0.7Sr0.3MnO3
    Lee, Sang M.
    Lim, Heung-Soo
    Chon, Gom-Bai
    Lee, Chan-Gyu
    Koo, Bon-Heun
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006, 48 (06) : 1409 - 1412
  • [23] Magnetic and magnetotransport properties of La0.7Sr0.3MnO3/Permalloy heterostructures
    Ruotolo, A.
    Oropallo, A.
    Granozio, F. Miletto
    Pepe, G. P.
    Perna, P.
    di Uccio, U. Scotti
    APPLIED PHYSICS LETTERS, 2006, 88 (25)
  • [24] Electrostatic extension of magnetic proximity effect in La0.7Sr0.3MnO3
    Lan, Qianqian
    Schnedler, Michael
    Freter, Lars
    Wang, Chuanshou
    Fischer, Kurt
    Ebert, Philipp
    Dunin-Borkowski, Rafal E.
    PHYSICAL REVIEW B, 2023, 108 (18)
  • [25] Fabrication and Magnetic Properties of Electrospun La0.7Sr0.3MnO3 Nanostructures
    Yensano, Rattakarn
    Pinitsoontorn, Supree
    Amornkitbamrung, Vittaya
    Maensiri, Santi
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2014, 27 (06) : 1553 - 1560
  • [26] Role of grain size on the magnetic properties of La0.7Sr0.3MnO3
    Yadav, P. A.
    Deshmukh, A. V.
    Adhi, K. P.
    Kale, B. B.
    Basavaih, N.
    Patil, S. I.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 328 : 86 - 90
  • [27] Interface magnetic properties of La0.7Sr0.3MnO3 thin films
    Roy, PE
    Andersson, C
    Gunnarsson, R
    Karis, O
    Ivanov, Z
    Svedlindh, P
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 272 : 1207 - 1209
  • [28] Magnetic and transport properties of cobalt doped La0.7Sr0.3MnO3
    Chen, X. G.
    Fu, J. B.
    Yun, C.
    Zhao, H.
    Yang, Y. B.
    Du, H. L.
    Han, J. Z.
    Wang, C. S.
    Liu, S. Q.
    Zhang, Y.
    Yang, Y. C.
    Yang, J. B.
    JOURNAL OF APPLIED PHYSICS, 2014, 116 (10)
  • [29] Green catalyst: magnetic La0.7Sr0.3MnO3 hollow microspheres
    Zhou, Cuiping
    Huang, Keke
    Yuan, Long
    Feng, Wenchun
    Chu, Xuefeng
    Geng, Zhibin
    Wu, Xiaofeng
    Wang, Liying
    Feng, Shouhua
    NEW JOURNAL OF CHEMISTRY, 2015, 39 (04) : 2413 - 2416
  • [30] COMPETING MAGNETIC INTERACTION IN Co DOPED La0.7Sr0.3MnO3
    Zhao, H.
    Chen, X.
    Wei, J.
    Yang, Y.
    Du, H.
    Han, J.
    Wang, C.
    Liu, S.
    Zhang, Y.
    Yang, Y.
    Yang, J.
    2015 IEEE MAGNETICS CONFERENCE (INTERMAG), 2015,
12345