[1] Scott J F 2000 Ferroelectric Memories (Berlin: Springer-Verlag) pp23-51
[2] Chappert C, Fert A, van Dau F N 2007 Nat. Mater. 6 813
[3] Wuttig M, Yamada N 2007 Nat. Mater. 6 824
[4] Waser R, Dittmann R, Staikov G, Szot K 2007 Nat. Mater. 6 833
[5] Dong S, Liu J M, Cheong S W, Ren Z 2015 Adv. Phys. 64 519
[6] Scott J F 2007 Nat. Mater. 6 256
[7] Gajek M, Bibes M, Fusil S, Bouzehouane K, Fontcuberta J, Barthlmy A, Fert A 2007 Nat. Mater. 6 296
[8] Garcia V, Bibes M, Bocher L, Valencia S, Kronast F, Crassous A, Moya X, Enouz-Vedrenne S, Gloter A, Imhoff D, Deranlot C, Mathur N D, Fusil S, Bouzehouane K, Barthlmy A 2010 Science 327 1106
[9] Pantel D, Goetze S, Hesse D, Alexe M 2012 Nat. Mater. 11 289
[10] Bibes M, Barthlmy A 2008 Nat. Mater. 7 425
[11] Song C, Cui B, Li F, Zhou X J, Pan F 2017 Prog. Mater. Sci. 87 33
[12] Thiele C, Dorr K, Bilani O, Rdel J, Schultz L 2007 Phys. Rev. B 75 054408
[13] Ma J, Lin Y, Nan C W 2010 J. Phys. D:Appl. Phys. 43 012001
[14] Chen Y, Gao J, Fitchorov T, Cai Z, Ziemer K S, Vittoria C, Harris V G 2009 Appl. Phys. Lett. 94 082504
[15] Xuan H C, Wang L Y, Zheng Y X, Li Y L, Cao Q Q, Chen S Y, Wang D H, Huang Z G, Du Y W 2011 Appl. Phys. Lett. 99 032509
[16] Chua L O 1971 IEEE Trans. Circuit Theory 18 507
[17] Chua L O, Kang S M 1976 Proc. IEEE 64 209
[18] Strukov D B, Snider G S, Stewart D R, Williams R S 2008 Nature 453 80
[19] Di Ventra M, Pershin Y V, Chua L O 2009 Proc. IEEE 97 1717
[20] Vongehr S 2012 Adv. Sci. Lett. 17 285
[21] Mathur N D 2008 Nature 455 E13
[22] Shang D S, Chai Y S, Cao Z X, Lu J, Sun Y 2015 Chin. Phys. B 24 068402
[23] Lou J, Pellegrini G N, Liu M, Mathur N D, Sun N X 2012 Appl. Phys. Lett. 100 102907
[24] Fiebig M 2005 J. Phys. D 38 R123
[25] Eerenstein W, Mathur N D, Scott J F 2006 Nature 442 759
[26] Nan C W, Bichurin M I, Peterburgskaya B S, Dong S X, Viehland D, Srinivasan G 2008 J. Appl. Phys. 103 031101
[27] Shen J X, Cong J Z, Chai Y S, Shang D S, Shen S P, Zhai K, Tian Y, Sun Y 2016 Phys. Rev. Appl. 6 021001
[28] Park S E, Shrout T R 1997 J. Appl. Phys. 82 1804
[29] Lee D, Yang M S, Kim T H, Jeon B C, Kim Y S, Yoon J G, Lee H N, Baek S H, Eom C B, Noh T W 2012 Adv. Mater. 24 402
[30] Shen J X, Cong J Z, Shang D S, Chai Y S, Shen S P, Zhai K, Sun Y 2016 Sci. Rep. 6 34473
[31] Lu P P, Shang D S, Shen J X, Chai Y S, Yang C S, Zhai K, Cong J Z, Shen S P, Sun Y 2016 Appl. Phys. Lett. 109 252902
[32] Zhai K, Shang D S, Chai Y S, Li G, Cai J W, Shen B G, Sun Y 2018 Adv. Func. Mater. 28 1705771
[33] Wang J, Meng H, Wang J P 2005 J. Appl. Phys. 97 10D509
[34] Khajetoorians A A, Wiebe J, Chilian B, Wiesendanger R 2011 Science 332 1062
[35] Borghetti J, Snider G S, Kuekes P J, Yang J J, Stewart D R, Williams R S 2010 Nature 464 873
[36] Wang Z, Zhao W, Kang W, Zhang Y, Klein J O, Ravelosona D, Zhang Y, Chappert C 2014 IEEE Trans. Magn. 50 9100604
[37] Li Y, Zhong Y P, Deng Y F, Zhou Y X, Xu L, Miao X S 2013 J. Appl. Phys. 114 234503
[38] Linn E, Rosezin R, Tappertzhofen S, Bttger U, Waser R 2012 Nanotechnology 23 305205
[39] Siemon A, Breuer T, Aslam N, Ferch S, Kim W, van den Hurk J, Rana V, Hoffmann-Eifert S, Waser R, Menzel S, Linn E 2015 Adv. Funct. Mater. 25 6414
[40] Shen J X, Shang D S, Chai Y S, Wang Y, Cong J Z, Shen S P, Yan L Q, Wang W H, Sun Y 2016 Phys. Rev. Appl. 6 064028
[41] Zhou Y, Yang S C, Apo D J, Maurya D, Priya S 2012 Appl. Phys. Lett. 101 232905
[42] Cassinerio M, Ciocchini N, Ielmini D 2013 Adv. Mater. 25 5975
[43] Binek C, Doudin B 2005 J. Phys. Condens. Matter. 17 L39
[44] Chen X, Hochstrat A, Borisov P, Kleemann W 2006 Appl. Phys. Lett. 89 202508
[45] Hu J M, Li Z, Lin Y H, Nan C W 2010 Phys. Status Solidi RRL 4 106
[46] Bi G Q, Poo M M 1998 J. Neurosci. 18 10464
[47] Mead C 1990 Proc. IEEE 78 1629
[48] Indiveri G, Chicca E, Douglas R A 2006 IEEE Trans. Neural Netw. 17 211
[49] Yang J J, Strukov D B, Stewart D 2013 Nat. Nanotechnol. 8 13
[50] Jo S H, Chang T, Ebong I, Bhadviya B B, Mazumder P, Lu W 2010 Nano Lett. 10 1297
[51] Yang C S, Shang D S, Liu N, Shi G, Shen X, Yu R C, Li Y Q, Sun Y 2017 Adv. Mater. 29 1700906
[52] Kuzum D, Yu S, Wong H S P 2013 Nanotechnology 24 382001
[53] Shen J X, Shang D S, Chai Y S, Wang S G, Shen B G, Sun Y 2018 Adv. Mater. 30 1706717