| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
|
|
|
|
Strain Induced Nanopillars and Variation of Magnetic Properties in La$_{0.825}$Sr$_{0.175}$MnO$_{3}$/LaAlO$_{3}$ Films |
| Xin Li1, Jing-Zhi Han1**, Xiong-Zuo Zhang1, Yin-Feng Zhang1, Hai-Dong Tian1, Ming-Zhu Xue1, Kun Li1, Xin Wen1, Wen-Yun Yang1, Shun-Quan Liu1, Chang-Sheng Wang1, Hong-Lin Du1, Xiao-Dong Zhang1, Xin-An Wang3, Ying-Chang Yang1, Jin-Bo Yang1,2 |
1State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871
2Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing 100871
3Ningxia Magvalley Novel Materials Technology Co., Ltd. New Energy Sub-Park, Ningdong Energy & Chemical Industry Base, Ningxia 751411
|
|
| Cite this article: |
|
Xin Li, Jing-Zhi Han, Xiong-Zuo Zhang et al 2019 Chin. Phys. Lett. 36 046102 |
|
|
|
|
Abstract To investigate the process of strain relaxation and resultant variation of microstructure and magnetic properties, low-doped La$_{0.825}$Sr$_{0.175}$MnO$_{3}$ epitaxial films with different thicknesses are deposited on LaAlO$_{3}$ substrates and strain induced nanopillars are discovered inside the La$_{0.825}$Sr$_{0.175}$MnO$_{3}$ film. Perpendicular oriented nanopillars mainly exist below 30 nm and tend to disappear above 30 nm. The distribution of nanopillars not only induce the variation of lattice parameters and local structural distortion but also lead to the deviation of easy magnetization axis from the perpendicular direction. Specifically, the out-of-plane lattice parameters of the film decrease quickly with the increase of the thickness but tend to be constant when the thickness is above 30 nm. Meanwhile, the variations of magnetic properties along in-plane and out-of-plane directions would also decline at first and they then remain nearly unchanged. Our work constructs the relationship between nanopillars and magnetic properties inside films. We are able to clearly reveal the effects of inhomogeneous strain relaxation.
|
|
|
Received: 07 January 2019
Published: 23 March 2019
|
|
|
|
|
| Fund: Supported by the National Key Research and Development Program of China under Grant Nos 2017YFA206303 and 2016YFB0700901, and the National Natural Science Foundation of China under Grant Nos 51731001, 51371009 and 51271004. |
|
|
|
| [1] | Dagotto E 2005 Science 309 257 | | [2] | Pi L, Zhu H, Xu X J and Zhang Y H 2001 Chin. Phys. Lett. 18 111 | | [3] | Wu Y Y, Zhang D M, Yu J, Zheng C D and Wang Y B 2008 Chin. Phys. Lett. 25 4131 | | [4] | Luo B C, Chen C L, Fan F and Jin K X 2012 Chin. Phys. Lett. 29 018104 | | [5] | Steenbeck K and Hiergeist R 1999 Appl. Phys. Lett. 75 1778 | | [6] | Haeni J H, Irvin P, Chang W, Uecker R, Reiche P, Li Y L, Choudhury S, Tian W, Hawley M E, Craigo B, Tagantsev A K, Pan X Q, Streiffer S K, Chen L Q, Kirchoefer S W, Levy J and Schlom D G 2004 Nature 430 758 | | [7] | Tranquada J M, Sternlieb B J, Axe J D, Nakamura Y and Uchida S 1995 Nature 375 561 | | [8] | Tebano A, Aruta C, Sanna S, Medaglia P G, Balestrino G, Sidorenko A A, De Renzi R, Ghiringhelli G, Braicovich L, Bisogni V and Brookes N B 2008 Phys. Rev. Lett. 100 137401 | | [9] | Giesen F, Damaschke B, Moshnyaga V, Samwer K and Müller G A 2004 Phys. Rev. B 69 014421 | | [10] | Tsui F, Smoak M C, Nath T K and Eom C B 2000 Appl. Phys. Lett. 76 2421 | | [11] | Wu Y, Suzuki Y, Rüdiger U, Yu J, Kent A D, Nath T K and Eom C B 1999 Appl. Phys. Lett. 75 2295 | | [12] | Yang S Y, Kuang W L, Liou Y, Tse W S, Lee S F and Yao Y D 2004 J. Magn. Magn. Mater. 268 326 | | [13] | Garcia V, Bibes M, Barthélémy A, Bowen M, Jacquet E, Contour J P and Fert A 2004 Phys. Rev. B 69 052403 | | [14] | De Jong M P, Dediu V A, Taliani C and Salaneck W R 2003 J. Appl. Phys. 94 7292 | | [15] | Cesaria M, Caricato A P, Maruccio G and Martino M 2003 J. Phys.: Conf. Ser. 292 012003 | | [16] | Kotani A, Nakajima H, Harada K, Ishii Y and Mori S 2017 Phys. Rev. B 95 144403 | | [17] | Kotani A, Nakajima H, Harada K, Ishii Y and Mori S 2016 Phys. Rev. B 94 024407 | | [18] | Yu X, Tokunaga Y, Taguchi Y and Tokura Y 2017 Adv. Mater. 29 1603958 | | [19] | Sampaio J, Cros V, Rohart S, Thiaville A and Fert A 2013 Nat. Nanotechnol. 8 839 | | [20] | Nagaosa N and Tokura Y 2013 Nat. Nanotechnol. 8 899 | | [21] | Tomasello R, Martinez E, Zivieri R, Torres L, Carpentieri M and Finocchio G 2015 Sci. Rep. 4 6784 | | [22] | Seki S, Yu X Z, Ishiwata S and Tokura Y 2012 Science 336 198 | | [23] | Jiang J C, Meletis E I and Gnanasekar K I 2002 Appl. Phys. Lett. 80 4831 | | [24] | Jiang J C, Meletis E I and Gnanasekar K I 2013 J. Mater. Res. 18 2556 | | [25] | Tokura Y and Nagaosa N 2000 Science 288 462 | | [26] | Vailionis A, Boschker H, Siemons W, Houwman E P, Blank D H A, Rijnders G and Koster G 2011 Phys. Rev. B 83 064101 | | [27] | Haghiri-Gosnet A M, Wolfman J, Mercey B, Simon C, Lecoeur P, Korzenski M, Hervieu M, Desfeux R and Baldinozzi G 2000 J. Appl. Phys. 88 4257 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
