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electrical switching of CuTCNQ memories. Appl. Phys. Lett. 91, 263507 (2007)
5. Kever, T., Böttiger, U., Schindler, C., Waser, R.: Mechanism for resistive switching in an oxidebased electrochemical metallization memory. Appl. Phys. Lett. 91, 083506 (2007)
6. Lai, Q., Shu, Z., Chen, Y., Patil, S., Wudi, F.: Analog memory capacitor based on fieldconfigurable ion-doped polymers. Appl. Phys. Lett. 88, 133515 (2006)
7. Ssenyange, S., Yan, H., MaCreery, R.L.: Redox-driven conductance switching via filament
formation and dissolution in carbon/molecule/TiO 2 /Ag molecular electronic junctions. Langmuir. 22, 10689 (2006)
8. Scrosati, B. (ed.): Application of Electroactive Polymers. Chapman & Hall, London (1993)
9. Fenton, D.E., Parker, J.M., Wright, P.V.: Complexes of alkali metal ions with poly(ethylene
oxide). Polymer. 14, 589 (1973)
10. Wu, S., Tsuruoka, T., Terabe, K., Hasegawa, T., Hill, J.P., Ariga, K., Aono, M.: Development
of polymer electrolyte based resistive switch. Proc. SPIE. 7493, 749364 (2009)
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Evidence for ion pairs and/or triple ions from transport measurements in mixed-alkali polyether
electrolytes. Electrochim. Acta. 43, 1407 (1998)
13. Bard, A.J., Parson, R., Jordan, J.: Standard Potentials in Aqueous Solution. Marcel Dekker,
New York (1985)
14. Mohapatra, S.R., Tsuruoka, T., Krishnan, K., Hasegawa, T., Aono, M.: Effects of temperature
and ambient pressure on the resistive switching behavior of polymer-based atomic switches.
J. Mater. Chem. C. 3, 5715 (2015)
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energy storage. Dalton Trans. 11, 1365 (2006)
16. Christie, A.M., Lilley, S.J., Staunton, E., Andreev, Y.G., Bruce, P.G.: Increasing the conductivity of crystalline polymer electrolytes. Nature. 433, 50 (2005)
17. Krishnan, K., Tsuruoka, T., Mannequin, C., Aono, M.: Mechanism for conducting filament
growth in self-assembled polymer thin films for redox-based atomic switches. Adv. Mater. 28,
640 (2016)
18. Krishnan, K., Tsuruoka, T., Aono, M.: Direct observation of anodic dissolution and filament
growth behavior in polyethylene-oxide-based atomic switch structures. Jpn. J. Appl. Phys. 55,
06GK02 (2016)
19. Krishnan, K., Aono, M., Tsuruoka, T.: Kinetic factors determining conducting filament formation in solid polymer electrolyte based planar devices. Nanoscale. 8, 13976 (2016)
20. Ratner, M.A., Shriver, D.F.: Ion transport in solvent-free polymers. Chem. Rev. 88, 109 (1988)
21. Terabe, K., Hasegawa, T., Nakayama, T., Aono, M.: Quantized conductance atomic switch.
Nature. 433, 47 (2005)
22. Ohno, T., Hasegawa, T., Tsuruoka, T., Terabe, K., Jimzewski, J.K., Aono, M.: Short-term
plasticity and long-term potentiation mimicked in single inorganic synapses. Nat. Mater. 10,
591 (2011)
23. Nayak, A., Ohno, T., Tsuruoka, T., Terabe, K., Hasegawa, T., Aono, M.: Controlling the
synaptic plasticity of a Cu 2 S gap-type atomic switch. Adv. Funct. Mater. 22, 3606 (2012)
24. Tsuruoka, T., Hasegawa, T., Terabe, K., Aono, M.: Conductance quantization and synaptic
behavior in a Ta 2 O 5 -based atomic switch. Nanotechnology. 23, 435705 (2012)
25. Krishnan, K., Muruganathan, M., Tsuruoka, T., Mizuta, H., Aono, M.: Highly reproducible and
regulated conductance quantization in a polymer-based atomic switch. Adv. Funct. Mater. 27,
1605104 (2017)
26. Krishnan, K., Muruganathan, M., Tsuruoka, T., Mizuta, H., Aono, M.: Quantized conductance
operation near a single-atom point contact in a polymer-based atomic switch. Jpn. J. Appl. Phys.
56, 06GF02 (2017)
158
T. Tsuruoka et al.
electrical switching of CuTCNQ memories. Appl. Phys. Lett. 91, 263507 (2007)
5. Kever, T., Böttiger, U., Schindler, C., Waser, R.: Mechanism for resistive switching in an oxidebased electrochemical metallization memory. Appl. Phys. Lett. 91, 083506 (2007)
6. Lai, Q., Shu, Z., Chen, Y., Patil, S., Wudi, F.: Analog memory capacitor based on fieldconfigurable ion-doped polymers. Appl. Phys. Lett. 88, 133515 (2006)
7. Ssenyange, S., Yan, H., MaCreery, R.L.: Redox-driven conductance switching via filament
formation and dissolution in carbon/molecule/TiO 2 /Ag molecular electronic junctions. Langmuir. 22, 10689 (2006)
8. Scrosati, B. (ed.): Application of Electroactive Polymers. Chapman & Hall, London (1993)
9. Fenton, D.E., Parker, J.M., Wright, P.V.: Complexes of alkali metal ions with poly(ethylene
oxide). Polymer. 14, 589 (1973)
10. Wu, S., Tsuruoka, T., Terabe, K., Hasegawa, T., Hill, J.P., Ariga, K., Aono, M.: Development
of polymer electrolyte based resistive switch. Proc. SPIE. 7493, 749364 (2009)
11. Wu, S., Tsuruoka, T., Terabe, K., Hasegawa, T., Hill, J.P., Ariga, K., Aono, M.: A polymerelectrolyte-based atomic switch. Adv. Funct. Mater. 21, 93 (2011)
12. Lascaud, S., Perrier, M., Armand, M., Prud’homme, J., Kapfer, B., Vallée, A., Gauthier, M.:
Evidence for ion pairs and/or triple ions from transport measurements in mixed-alkali polyether
electrolytes. Electrochim. Acta. 43, 1407 (1998)
13. Bard, A.J., Parson, R., Jordan, J.: Standard Potentials in Aqueous Solution. Marcel Dekker,
New York (1985)
14. Mohapatra, S.R., Tsuruoka, T., Krishnan, K., Hasegawa, T., Aono, M.: Effects of temperature
and ambient pressure on the resistive switching behavior of polymer-based atomic switches.
J. Mater. Chem. C. 3, 5715 (2015)
15. Bruce, P.G.: Ion-polyether coordination complexes: crystalline ionic conductors for clean
energy storage. Dalton Trans. 11, 1365 (2006)
16. Christie, A.M., Lilley, S.J., Staunton, E., Andreev, Y.G., Bruce, P.G.: Increasing the conductivity of crystalline polymer electrolytes. Nature. 433, 50 (2005)
17. Krishnan, K., Tsuruoka, T., Mannequin, C., Aono, M.: Mechanism for conducting filament
growth in self-assembled polymer thin films for redox-based atomic switches. Adv. Mater. 28,
640 (2016)
18. Krishnan, K., Tsuruoka, T., Aono, M.: Direct observation of anodic dissolution and filament
growth behavior in polyethylene-oxide-based atomic switch structures. Jpn. J. Appl. Phys. 55,
06GK02 (2016)
19. Krishnan, K., Aono, M., Tsuruoka, T.: Kinetic factors determining conducting filament formation in solid polymer electrolyte based planar devices. Nanoscale. 8, 13976 (2016)
20. Ratner, M.A., Shriver, D.F.: Ion transport in solvent-free polymers. Chem. Rev. 88, 109 (1988)
21. Terabe, K., Hasegawa, T., Nakayama, T., Aono, M.: Quantized conductance atomic switch.
Nature. 433, 47 (2005)
22. Ohno, T., Hasegawa, T., Tsuruoka, T., Terabe, K., Jimzewski, J.K., Aono, M.: Short-term
plasticity and long-term potentiation mimicked in single inorganic synapses. Nat. Mater. 10,
591 (2011)
23. Nayak, A., Ohno, T., Tsuruoka, T., Terabe, K., Hasegawa, T., Aono, M.: Controlling the
synaptic plasticity of a Cu 2 S gap-type atomic switch. Adv. Funct. Mater. 22, 3606 (2012)
24. Tsuruoka, T., Hasegawa, T., Terabe, K., Aono, M.: Conductance quantization and synaptic
behavior in a Ta 2 O 5 -based atomic switch. Nanotechnology. 23, 435705 (2012)
25. Krishnan, K., Muruganathan, M., Tsuruoka, T., Mizuta, H., Aono, M.: Highly reproducible and
regulated conductance quantization in a polymer-based atomic switch. Adv. Funct. Mater. 27,
1605104 (2017)
26. Krishnan, K., Muruganathan, M., Tsuruoka, T., Mizuta, H., Aono, M.: Quantized conductance
operation near a single-atom point contact in a polymer-based atomic switch. Jpn. J. Appl. Phys.
56, 06GF02 (2017)
158
T. Tsuruoka et al.