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The Ge50Te50/Zn15Sb85 nanocomposite multilayer films are prepared by the magnetron sputtering. The variation of resistance with temperature and with crystallization activation energy is studied. The multilayer structure of the section before and after the crystallization for Ge50Te50/Zn15Sb85 nanocomposite multilayer film is compared by transmission electron microscope. The phase change memory device based on [GT(7nm)/ZS(3nm)]5 is manufactured, and the electrical performance is measured. The fast switching speed, low operating power consumption, and good cycling performance are achieved for Ge50Te50/Zn15Sb85. Ge50Te50/Zn15Sb85, which is a kind of nanocomposite multilayer film, a promising phase change storage material with high thermal stability and low power consumption.
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图 1 GT/ZS多层复合纳米薄膜的电阻随温度的变化
Figure 1. Resistance vs. temperature of GT/ZS nanocomposite multilayer films.
图 2 GT/ZS多层复合纳米薄膜的失效时间随1/(kBT)的变化曲线
Figure 2. Failure time vs. 1/(kBT) GT/ZS nanocomposite multilayer films.
图 3 [GT(7 nm)/ZS(3 nm)]5多层复合薄膜的截面高分辨透射电子显微镜图像(a)(b)和选取电子衍射图(c) (d) (a), (c) 非晶态; (b), (d) 晶态
Figure 3. The high-resolution transmission electron microscopy images (a) (b) and selected area electron diffraction diagrams (c) (d) of section for [GT(7 nm)/ZS(3 nm)]5 multilayer composite film: (a), (c) Amorphous; (b), (d) crystalline.
图 4 基于[GT(7 nm)/ZS(3 nm)]5多层复合薄膜的PCM器件的(a) PCM器件单元的截面示意图, (b) I-V曲线, (c) R-V曲线, (d)循环特性曲线
Figure 4. (a) The cross section diagram of PCM devices cell; the curves of (b) I-V, (c) R-V, (d) cycling performance for PCM device based on [GT(7 nm)/ZS(3 nm)]5 multilayer composite film.
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[1] Slesazeck S, Mikolajick T 2019 Nanotechnology 30 352003
Google Scholar
[2] Micoulaut M, Piarristeguy A, Flores-Ruiz H, Pradel A 2017 Phys. Rev. B 96 184204
Google Scholar
[3] Ding K Y, Wang J J, Zhou Y X, Tian H, Lu L, Mazzarello R, Jia C L, Zhang W, Rao F, Ma E 2019 Science 366 210
Google Scholar
[4] Rao F, Ding K Y, Zhou Y X, Zheng Y H, Xia M J, Lv S L, Song Z T, Feng S L, Ronneberger I, Mazzarello R, Zhang W, Ma E 2017 Science 358 1423
Google Scholar
[5] Wang Z R, Joshi S, Savelev S E, Jiang H, Midya R, Lin P, Hu M, Ge N, Strachan J P, Li Z Y, Wu Q, Barne M, Li G L, Xin H L, Williams R S, Xia Q F, Yang J J 2017 Nat. Mater. 16 101
Google Scholar
[6] Xu M, Li B, Xu K, Tong H, Cheng X, Xu M, Miao X 2019 Phys. Chem. Chem. Phys. 21 4494
Google Scholar
[7] Guo T Q, Song S N, Zheng Y H, Xue Y, Yan S, Liu Y X, Li T, Liu G Y, Wang Y, Song Z T, Qi M, Feng S L 2018 Nanotechnology 29 505710
Google Scholar
[8] Hu Y F, Qiu Q Q, Zhu X Q, Lai T S 2020 Appl. Surf. Sci. 505 144337
Google Scholar
[9] Zheng L, Song W X, Song Z T, Song S N 2019 ACS Appl. Mater. Interfaces 11 45885
Google Scholar
[10] Okabe K L, Sood A, Yalon E, Neumann C M, Asheghi M, Pop E, Goodson K E, Wong H S P 2019 J. Appl. Phys. 125 184501
Google Scholar
[11] Lu Y G, Wang M, Song S N, Xia M J, Jia Y, Shen X, Wang G X, Dai S X, Song Z T 2016 Appl. Phys. Lett. 109 8181
[12] Zhou L J, Yang Z, Wang X J, Qian H, Xu M, Cheng X M, Tong H, Miao X S 2019 Adv. Electron. Mater. 5 1900781
[13] Li Z G, Lu Y G, Wang M, Shen X, Zhang X H, Song S N, Song Z T 2018 J. Non-Cryst. Solids. 481 110
Google Scholar
[14] Wu W H, Chen S Y, Zhai J W, Liu X Y, Lai T S, Song S N, Song Z T 2017 Nanotechnology 28 405206
Google Scholar
[15] Zhang J H, Hu Y F, Zhang R, Zou H, Xue J Z, Zhu X Q, Song S N, Song Z T 2019 Ecs J. Solid State Sc. 8 563
[16] Zhang R, Hu Y F, Chou Q Q, Lai T S, Zhu X Q 2019 J. Alloys Compd. 798 342
Google Scholar
[17] He Z F, Chen S Y, Wu W H, Zhai J W, Song S N, Song Z T 2017 Appl. Phys. Express 10 055504
Google Scholar
[18] Wang Y, Wang T B, Liu G Y, Guo T Q, Li T, Lv S L, Cheng Y, Song S N, Ren K, Song Z T 2019 Scr. Mater. 164 25
Google Scholar
[19] Saxena N, Manivannan A 2020 J. Phys. D: Appl. Phys. 53 025103
Google Scholar
[20] Cho J Y, Kim D, Park Y J, Yang T Y, Lee Y Y, Joo Y C 2015 Acta Mater. 94 143
Google Scholar
[21] Feng X Y, Wen T, Zhai J W, Lai T S, Wang C Z, Song S N, Song Z T 2014 Appl. Surf. Sci. 316 286
Google Scholar
[22] Hu Y F, You H P, Chou Q Q, Lai T S 2019 J. Phys. D: Appl. Phys. 52 415104
Google Scholar
[23] Xue Y, Song S N, Yan S, Guo T Q, Song Z T, Feng S L 2018 Scr. Mater. 157 152
Google Scholar
[24] Lu Y G, Song S N, Song Z T, Wu L C, He A D, Gong Y F, Rao F, Liu B 2012 Appl. Phys. Lett. 101 113104
Google Scholar
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