Multifilamentary character of anticorrelated capacitive and resistive switching in memristive structures based on (Co-Fe-B)x (LiNb O3)100-x nanocomposite. / Martyshov, M. N.; Emelyanov, A. V.; Demin, V. A.; Nikiruy, K. E.; Minnekhanov, A. A.; Nikolaev, S. N.; Taldenkov, A. N.; Ovcharov, A. V.; Presnyakov, M. Yu; Sitnikov, A. V.; Vasiliev, A. L.; Forsh, P. A.; Granovsky, A. B.; Kashkarov, P. K.; Kovalchuk, M. V.; Rylkov, V. V.
In: Physical Review Applied, Vol. 14, No. 3, 034016, 09.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Multifilamentary character of anticorrelated capacitive and resistive switching in memristive structures based on (Co-Fe-B)x (LiNb O3)100-x nanocomposite
AU - Martyshov, M. N.
AU - Emelyanov, A. V.
AU - Demin, V. A.
AU - Nikiruy, K. E.
AU - Minnekhanov, A. A.
AU - Nikolaev, S. N.
AU - Taldenkov, A. N.
AU - Ovcharov, A. V.
AU - Presnyakov, M. Yu
AU - Sitnikov, A. V.
AU - Vasiliev, A. L.
AU - Forsh, P. A.
AU - Granovsky, A. B.
AU - Kashkarov, P. K.
AU - Kovalchuk, M. V.
AU - Rylkov, V. V.
N1 - Publisher Copyright: © 2020 American Physical Society.
PY - 2020/9
Y1 - 2020/9
N2 - Resistive and capacitive switching in capacitor metal/nanocomposite/metal (M/NC/M) structures based on (Co-Fe-B)x(LiNbO3)100-x NC fabricated by ion-beam sputtering with metal content x ≈ 8-20 at. % is studied. The peculiarity of the structure synthesis was the use of increased oxygen content (approximately equal to 2 × 10-5 Torr) at the initial stage of the NC growth. The NC films, along with metal nanogranules of 3-6 nm in size, contained a large number of dispersed Co (Fe) atoms (up to approximately 1022 cm-3). Measurements are performed both in dc and ac (frequency range 5-13 MHz) regimes. When switching structures from high-resistance (Roff) to low-resistance (Ron) state, the effect of a strong increase in their capacity is found, which reaches 8 times at x ≈ 15 at. % and the resistance ratio Roff:Ron ≈ 40. The effect is explained by the synergetic combination of the multifilamentary character of resistive switching (RS) and structural features of the samples associated, in particular, with the formation of a high-resistance and strongly polarizable LiNbO3 layer near the bottom electrode of the structures. The proposed model is confirmed by investigations of RS of two-layer nanoscale M/NC/LiNbO3/M structures as well as by studies of the magnetization of M/NC/M structures in the pristine state and after RS.
AB - Resistive and capacitive switching in capacitor metal/nanocomposite/metal (M/NC/M) structures based on (Co-Fe-B)x(LiNbO3)100-x NC fabricated by ion-beam sputtering with metal content x ≈ 8-20 at. % is studied. The peculiarity of the structure synthesis was the use of increased oxygen content (approximately equal to 2 × 10-5 Torr) at the initial stage of the NC growth. The NC films, along with metal nanogranules of 3-6 nm in size, contained a large number of dispersed Co (Fe) atoms (up to approximately 1022 cm-3). Measurements are performed both in dc and ac (frequency range 5-13 MHz) regimes. When switching structures from high-resistance (Roff) to low-resistance (Ron) state, the effect of a strong increase in their capacity is found, which reaches 8 times at x ≈ 15 at. % and the resistance ratio Roff:Ron ≈ 40. The effect is explained by the synergetic combination of the multifilamentary character of resistive switching (RS) and structural features of the samples associated, in particular, with the formation of a high-resistance and strongly polarizable LiNbO3 layer near the bottom electrode of the structures. The proposed model is confirmed by investigations of RS of two-layer nanoscale M/NC/LiNbO3/M structures as well as by studies of the magnetization of M/NC/M structures in the pristine state and after RS.
UR - http://www.scopus.com/inward/record.url?scp=85093093050&partnerID=8YFLogxK
U2 - 10.1103/PhysRevApplied.14.034016
DO - 10.1103/PhysRevApplied.14.034016
M3 - Article
AN - SCOPUS:85093093050
VL - 14
JO - Physical Review Applied
JF - Physical Review Applied
SN - 2331-7019
IS - 3
M1 - 034016
ER -
ID: 88197668