title: The chemically driven phase transformation in a memristive abacus capable of calculating decimal fractions.
abstract: The accurate calculation of decimal fractions is still a challenge for the binary-coded computations that rely on von Neumann paradigm. Here, we report a kind of memristive abacus based on synaptic Ag-Ge-Se device, in which the memristive long-term potentiation and depression are caused by a chemically driven phase transformation. The growth and the rupture of conductive Ag₂Se dendrites are confirmed via in situ transmission electron microscopy. By detecting the change in memristive synaptic weight, the quantity of input signals applied onto the device can be "counted". This makes it possible to achieve the functions of abacus that is basically a counting frame. We demonstrate through experimental studies that this kind of memristive abacus can calculate decimal fractions in the light of the abacus algorithms. This approach opens up a new route to do decimal arithmetic in memristive devices without encoding binary-coded decimal.
authors: Department of Materials Science and Engineering and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
authors: Hanni
authors: H
authors: Xu
authors: Yidong
authors: Y
authors: Xia
authors: Kuibo
authors: K
authors: Yin
authors: Jianxin
authors: J
authors: Lu
authors: Qiaonan
authors: Q
authors: Yin
authors: Jiang
authors: J
authors: Yin
authors: Litao
authors: L
authors: Sun
authors: Zhiguo
authors: Z
authors: Liu
references: Adv Mater. 2010 Aug 24;22(32):3573-7
references: 20512814
references: Nat Mater. 2011 Jun 26;10(8):591-5
references: 21706012
references: Nat Mater. 2007 Nov;6(11):833-40
references: 17972938
references: Adv Mater. 2012 Apr 10;24(14):1844-9
references: 22407902
references: Nat Nanotechnol. 2010 Feb;5(2):148-53
references: 20081847
references: Nano Lett. 2010 Apr 14;10(4):1297-301
references: 20192230
references: Adv Mater. 2010 Apr 22;22(16):1831-4
references: 20512956
references: Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Aug;80(2 Pt 1):021926
references: 19792170
references: Nat Rev Neurosci. 2009 Feb;10(2):113-25
references: 19145235
references: Nat Commun. 2012 Mar 13;3:732
references: 22415823
references: Nature. 2008 May 1;453(7191):80-3
references: 18451858
references: Adv Mater. 2011 Aug 9;23(30):3408-13
references: 21695736
references: Nano Lett. 2012 May 9;12(5):2179-86
references: 21668029
references: Nat Mater. 2008 May;7(5):391-8
references: 18391957
references: ACS Nano. 2011 Sep 27;5(9):7669-76
references: 21861506