Abstract
We study the peculiarities in current-phase relations (CPR) of the SIsFS junction in the region of 0 to π transition. These CPR consist of two independent branches corresponding to 0- and π-states of the contact. We have found that depending on the transparency of the SIs tunnel barrier, the decrease in the s-layer thickness leads to transformation of the CPR shape going in the two possible ways: either one of the branches exists only in discrete intervals of the phase difference φ or both branches are sinusoidal but differ in the magnitude of their critical currents. We demonstrate that the difference can be as large as 10% under maintaining superconductivity in the s layer. An applicability of these phenomena for memory and logic application is discussed.
| Original language | English |
|---|---|
| Article number | 082602 |
| Journal | Applied physics letters |
| Volume | 113 |
| Issue number | 8 |
| Early online date | 1 Aug 2018 |
| DOIs | |
| Publication status | Published - 20 Aug 2018 |
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Protected 0-π states in SIsFS junctions for Josephson memory and logic. / Bakurskiy, S.V.; Klenov, N.V.; Soloviev, I.I.; Pugach, N.G.; Kupriyanov, M. Yu; Golubov, A.A. (Corresponding Author).
In: Applied physics letters, Vol. 113, No. 8, 082602, 20.08.2018.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Protected 0-π states in SIsFS junctions for Josephson memory and logic
AU - Bakurskiy, S.V.
AU - Klenov, N.V.
AU - Soloviev, I.I.
AU - Pugach, N.G.
AU - Kupriyanov, M. Yu
AU - Golubov, A.A.
PY - 2018/8/20
Y1 - 2018/8/20
N2 - We study the peculiarities in current-phase relations (CPR) of the SIsFS junction in the region of 0 to π transition. These CPR consist of two independent branches corresponding to 0- and π-states of the contact. We have found that depending on the transparency of the SIs tunnel barrier, the decrease in the s-layer thickness leads to transformation of the CPR shape going in the two possible ways: either one of the branches exists only in discrete intervals of the phase difference φ or both branches are sinusoidal but differ in the magnitude of their critical currents. We demonstrate that the difference can be as large as 10% under maintaining superconductivity in the s layer. An applicability of these phenomena for memory and logic application is discussed.
AB - We study the peculiarities in current-phase relations (CPR) of the SIsFS junction in the region of 0 to π transition. These CPR consist of two independent branches corresponding to 0- and π-states of the contact. We have found that depending on the transparency of the SIs tunnel barrier, the decrease in the s-layer thickness leads to transformation of the CPR shape going in the two possible ways: either one of the branches exists only in discrete intervals of the phase difference φ or both branches are sinusoidal but differ in the magnitude of their critical currents. We demonstrate that the difference can be as large as 10% under maintaining superconductivity in the s layer. An applicability of these phenomena for memory and logic application is discussed.
UR - http://www.scopus.com/inward/record.url?scp=85052392501&partnerID=8YFLogxK
U2 - 10.1063/1.5045490
DO - 10.1063/1.5045490
M3 - Article
AN - SCOPUS:85052392501
VL - 113
JO - Applied physics letters
JF - Applied physics letters
SN - 0003-6951
IS - 8
M1 - 082602
ER -