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Ïîêàçàíî ñóùåñòâîâàíèå äâóõ îòëè÷íûõ êîìïîíåíò àìïëèòóäûñïàðèâàíèÿ ñî ñâîéñòâàìè, ñîîòâåòñòâóþùèìè ýôôåêòó áëèçîñòè â íîðìàëüíîì ìåòàëëå è ôåððîìàãíåòèêå. Àìïëèòóäà ýòèõ êîìïîíåíò çàâèñèò îò ðàçìåðàäîìåíîâ, à èõ ñóïåðïîçèöèÿ ìîæåò ïðåäñòàâëÿòü êàê îñöèëëèðóþùóþ, òàê è ìîíîòîííî óáûâàþùóþ ôóíêöèþ. Ïîêàçàíî, ÷òî ïîäîáíûå ñâîéñòâà ìîãóò áûòüïîëó÷åíû èñêóññòâåííî â ìàòåðèàëàõ, âêëþ÷àþùèõ áîëüøîå êîëè÷åñòâî ÷åðåäóþùèõñÿ ôåððîìàãíèòíûõ ñëîåâ.2. Ïðåäëîæåíà êîíöåïöèÿ ìàñøòàáèðóåìîãî äæîçåôñîíîâñêîãî ϕ-êîíòàêòàñ ïðîäîëüíî-îðèåíòèðîâàííîé ïðîñëîéêîé èç íîðìàëüíîãî è ôåððîìàãíèòíîãî ìåòàëëîâ.
Ïîêàçàíà âîçìîæíîñòü ðåàëèçàöèè ϕ-ñîñòîÿíèÿ ñ íåòðèâèàëüíîé19òîê-ôàçîâîé çàâèñèìîñòüþ â îêðåñòíîñòÿõ 0-π ïåðåõîäà. Ïðîèçâåäåíà îöåíêàìàñøòàáèðóåìîñòè òàêèõ ñòðóêòóð è âûâåäåíî óñëîâèå, îãðàíè÷èâàþùåå ìèíèìàëüíûé ðàçìåð ϕ-êîíòàêòà. Ïðîèçâåäåíî ñðàâíåíèå ðàçëè÷íûõ ãåîìåòðèéñòðóêòóð ñ ïðîäîëüíî-îðèåíòèðîâàííîé NF-ïðîñëîéêîé. Ïîêàçàíî, ÷òî ðàñïîëîæåíèå ñâåðõïðîâîäÿùèõ ýëåêòðîäîâ è çàêëþ÷åííîãî ìåæäó íèìè ôåððîìàãíèòíîãî ñëîÿ íàä íîðìàëüíîé ïëåíêîé ÿâëÿåòñÿ îïòèìàëüíûì äëÿ ðåàëèçàöèèϕ-êîíòàêòà. Êðèòè÷åñêèé òîê IC ñîîòâåòñòâóþùåé ñòðóêòóðû ñ ïîïåðå÷íûìèðàçìåðàìè íîðìàëüíîé è ôåððîìàãíèòíîé ïëåíîê ïîðÿäêà 100 íì è ðàññòîÿíèåì ìåæäó ýëåêòðîäàìè îò 7 äî 22 íì ìîæåò äîñòèãàòü çíà÷åíèé ïîðÿäêà 1ìÀ.3.
Ðàññ÷èòàíû òîêîâûå õàðàêòåðèñòèêè â äæîçåôñîíîâñêîé ñòðóêòóðå ñîñëîæíîé ïðîñëîéêîé, ñîñòîÿùåé èç òóííåëüíîãî áàðüåðà, òîíêîé ñâåðõïðîâîäíèêîâîé ïëåíêè è ôåððîìàãíèòíîãî ñëîÿ â çàâèñèìîñòè îò òîëùèí ñëîåâ, õàðàêòåðèñòèê ìàòåðèàëîâ è òåìïåðàòóðû. Ñèñòåìàòèçèðîâàíû îñíîâíûå ðåæèìû ðàáîòû ñòðóêòóðû, îïðåäåëÿþùèåñÿ ïîäàâëåíèåì ñàìîñîãëàñîâàííîãî ïîòåíöèàëà ñïàðèâàíèÿ â ñâåðõïðîâîäíèêîâîé ïëåíêå çà ñ÷åò ýôôåêòà áëèçîñòè èìåñòîì ëîêàëèçàöèè ïðûæêà ôàçû íà ôåððîìàãíèòíîì èëè äèýëåêòðè÷åñêîìñëîÿõ. Ïîêàçàíî, ÷òî õàðàêòåðíîå íàïðÿæåíèå IC RN òàêîé äæîçåôñîíîâñêîéñòðóêòóðû ïðè èñïîëüçîâàíèè ñâåðõïðîâîäíèêîâûõ ïðîñëîåê òîëùèíîé îò 20äî 60 íì ìîæåò äîñòèãàòü çíà÷åíèé ïîðÿäêà 1 ìÂ, ñîïîñòàâèìûõ ïî âåëè÷èíåñ õàðàêòåðíûì íàïðÿæåíèåì òóííåëüíîãî êîíòàêòà, ÷òî îïðåäåëÿåò åå áûñòðîäåéñòâèå è ìîæåò ïîçâîëèòü èíòåãðèðîâàòü åå â öåïè áûñòðîé îäíîêâàíòîâîéëîãèêè.4.
Ïîêàçàíà âîçìîæíîñòü èñïîëüçîâàòü áûñòðîäåéñòâóþùèé äæîçåôñîíîâñêèé êîíòàêò ñî ñëîæíîé ïðîñëîéêîé, ñîñòîÿùåé èç òóííåëüíîãî áàðüåðà, òîíêîé ñâåðõïðîâîäíèêîâîé ïëåíêè è ôåððîìàãíèòíîãî ñëîÿ, â êà÷åñòâå óïðàâëÿåìîãî ýëåìåíòà â ÿ÷åéêå ïàìÿòè. Ïîêàçàíî, ÷òî îí ìîæåò áûòü ïåðåêëþ÷åí èç0 â π ñîñòîÿíèå çà ñ÷åò èçìåíåíèÿ òåìïåðàòóðû èëè ýôôåêòèâíîãî îáìåííîãîïîëÿ ìàãíèòíîãî ìàòåðèàëà. Ðàññ÷èòàíû òîê-ôàçîâûå ñîîòíîøåíèÿ â îáëàñòè0 -π ïåðåõîäà è ïîêàçàíî, ÷òî ïåðåõîä îñóùåñòâëÿåòñÿ ÷åðåç ñîñòîÿíèÿ ñ çàìåòíûì âêëàäîì âûñîêèõ ãàðìîíèê â òîê-ôàçîâîé çàâèñèìîñòè äàæå â ñëó÷àå20òåìïåðàòóð áëèçêèõ ê êðèòè÷åñêîé.Ðåçóëüòàòû äèññåðòàöèè îòðàæåíû â ñëåäóþùèõ ïóáëèêàöèÿõ[À1] Í.
Â. Êëåíîâ, Í. Ã. Ïóãà÷, À. Â. Øàðàôèåâ, Ñ. Â. Áàêóðñêèé, Â. Ê.Êîðíåâ, "Äæîçåôñîíîâñêèå êîíòàêòû ñ íåñèíóñîèäàëüíûìè òîê-ôàçîâûìèçàâèñèìîñòÿìè íà îñíîâå ãåòåðîñòðóêòóð ñ ôåððîìàãíèòíîé ïðîñëîéêîé èèõ ïðèìåíåíèÿ", Ôèçèêà Òâåðäîãî Òåëà, ò. 52, âûï. 11, ñòð. 2104-2109, 2010.[À2] S. V. Bakurskiy, N. V. Klenov, T. Yu. Karminskaya, M. Yu. Kupriyanov andV.K. Kornev, "Current-Phase Relation in Josephson Junctions with ComplexFerromagnetic/Normal Metal Interlayers", Solid State Phenomena, vol. 190,pp.
401-404, 2012.[À3] S. V. Bakurskiy, N. V. Klenov, T. Yu. Karminskaya, M. Yu. Kupriyanovand A. A. Golubov, "Josephson ϕ-junctions based on structures with complexnormal/ferromagnet bilayer", Superconductor Science and Technology, v. 26,015005, 2013.[À4] I. V. Vernik, V. V. Bolginov, S. V.
Bakurskiy, A. A. Golubov, M. Yu.Kupriyanov, V.V. Ryazanov and O. A. Mukhanov, "Magnetic JosephsonJunctions with Superconducting Interlayer for Cryogenic Memory", IEEETransactions on Applied Superconductivity, 23 (3), 1701208-1701208, 2013.[À5] S. V. Bakurskiy, N. V. Klenov, I.
I. Soloviev, V. V. Bolginov, V. V. Ryazanov,I. V. Vernik, O. A. Mukhanov, M. Yu. Kupriyanov, A. A. Golubov, "Theoreticalmodel of superconducting spintronic SIsFS devices", Applied Physics Letters ,102 (19), 192603-192603-4, 2013[À6] S. V. Bakurskiy, N. V.
Klenov, I. I. Soloviev, M. Yu. Kupriyanov, A. A.Golubov, "Theory of supercurrent transport in SIsFS Josephson junctions",Physical Review B, 88, 14, 144519, 2013[À7] I. I. Soloviev, N. V. Klenov, S. V. Bakurskiy, V. V. Bolginov, V. V.Ryazanov, M. Yu. Kupriyanov, A. A. Golubov, "Josephson magnetic rotaryvalve", Applied Physics Letters, 105, 24, 2014[À8] S. V. Bakurskiy, A. A. Golubov, N.
V. Klenov, M. Yu. Kupriyanov, I. I.21Soloviev, "Josephson eect in SIFS tunnel junctions with domain walls in weaklink region In memory of VF Gantmakher", Ïèñüìà â ÆÝÒÔ, 101, 11-12,863, 2015[À9] Ñ.Â.Áàêóðñêèé, Ì.Þ.Êóïðèÿíîâ, À.À.Áàðàíîâ, À.À.Ãîëóáîâ,Í.Â.Êëåíîâ, È.È.Ñîëîâüåâ, "Ýôôåêò áëèçîñòè â ìíîãîñëîéíûõ ñòðóêòóðàõ ñ ÷åðåäóþùèìèñÿ ôåððîìàãíèòíûìè è íîðìàëüíûìè ñëîÿìè",Ïèñüìà â ÆÝÒÔ, 102, 9, 670, 2015[À10] Ì. Þ. Êóïðèÿíîâ, Ñ.
Â. Áàêóðñêèé, Í. Â. Êëåíîâ, È. È. Ñîëîâüåâ, À.Ë. Ãóäêîâ , Â. Â. Ðÿçàíîâ, "Âûñîêî÷àñòîòíûé ñâåðõïðîâîäÿùèé ýëåìåíòïàìÿòè", RU 2554612, îïóáëèêîâàíî: 27.06.2015 Áþë. No 18.[À11] Ì. Þ. Êóïðèÿíîâ, Ñ. Â. Áàêóðñêèé, Í. Â. Êëåíîâ, È. È. Ñîëîâüåâ, "Äæîçåôñîíîâñêèé 0-ïè ïåðåêëþ÷àòåëü", RU 2554614, îïóáëèêîâàíî:27.06.2015 Áþë. No 18.[À12] Áàêóðñêèé Ñ.Â.
"Ïàðàìåòðû äæîçåôñîíîâñêèõ ñòðóêòóð ñ ôåððîìàãíèòíûìè ïðîñëîéêàìè äëÿ ñîçäàíèÿ êâàíòîâîãî áèòà."Ìàòåðèàëû Ìåæäóíàðîäíîãî ìîëîäåæíîãî íàó÷íîãî ôîðóìà "Ëîìîíîñîâ-2010", Ðîññèÿ,Ìîñêâà, 12 - 15 àïðåëÿ 2010 ãîäà, ISBN 978-5-317-03197-8[À13] Bakurskiy S. V., Klenov N. V. and Kornev V. K. "Current transport inJosephson heterostructures with normal or feromagnetic interlayer.", Âñåðîññèéñêàÿ êîíôåðåíöèÿ è íàó÷íàÿ øêîëà äëÿ ìîëîäûõ ó÷åíûõ "Íîâûå ìàòåðèàëû è íàíîòåõíîëîãèè â ýëåêòðîíèêå ÑÂ×", Ñàíêò-Ïåòåðáóðã, Ðîññèÿ,18-20 íîÿáðÿ 2010 ã.[À14] Bakurskiy S.V., Klenov N.V., Karminskaya T.Yu, Kupriyanov M.Yu,Goliubov A.A., "Josephson ϕ-device based on complex nanostructures withnormal metal/ferromagnet bilayer", Advanced research workshop "Meso2012"Mesoscopic and strongly correlated electron systems Non-equilibrium andcoherent phenomena at nanoscale, June 17-23, 2012, ñ.
38-38.[À15] Bakurskiy S.V., Klenov N.V., Karminskaya T.Yu, Golubov A.A.,Kupriyanov M.Yu "Josephson ϕ-device based on complex nanostructureswith normal metal/ferromagnet bilayer", International Conference "Microand nanoelectronics - 2012"(ICMNE-2012), October 1-5, Zvenigorod, Moscow22region, Book of Abstracts, ñ. P2-01[À16] S.V. Bakurskiy, N.V.
Klenov, I.I. Soloviev, M.Yu Kupriyanov, andA.A. Golubov, "Theoretical description of SIsFS device", 8-th InternationalConference on Vortex Matter in Nanostructured Superconductors, Rhodes(Greece) 21-26 September, Abstract Book, page 108, 2013[À17] Ñ.Â. Áàêóðñêèé, Í.Â. Êëåíîâ, È.È. Ñîëîâüåâ, Ì.Þ. Êóïðèÿíîâ, andÀ.À. Ãîëóáîâ. "Âëèÿíèå äîìåííîé ñòðóêòóðû ôåððîìàãíåòèêà íà òîêîâûéòðàíñïîðò äæîçåôñîíîâñêèõ sfs-ïåðåõîäîâ", Òðóäû XVIII ìåæäóíàðîäíîãîñèìïîçèóìà "Íàíîôèçèêà è íàíîýëåêòðîíèêà òîì 1, ñ. 51-52 . ÈçäàòåëüñòâîÍèæåãîðîäñêîãî ãîñóíèâåðñèòåòà èì.
Í.È. Ëîáà÷åâñêîãî Íèæíèé Íîâãîðîä, 2014.[À18] S.V. Bakurskiy, N.V. Klenov, I.I. Soloviev, N.G. Pugach, A.A. Golubov,and M.Yu Kupriyanov. "Current properties of Josephson SIsFS junctions". InMoscow International Symposium on Magnetism (MISM), 29 June 3 July2014, Moscow Book of Abstracts, page 326.
PrintLETO.ru Moscow, 2014.[À19] S.V. Bakurskiy, N.V. Klenov, I.I. Soloviev, M.Yu Kupriyanov, andA.A. Golubov. "Josephson eect in superconductor-ferromagnet junctions".International scientic conference "Science of Future". Ministry of educationand science of the Russian Federation St-Petersburg, 17-20 September, 2014.[À20] Ñ.Â. Áàêóðñêèé, Í.Â. Êëåíîâ, È.È. Ñîëîâüåâ, Ì.Þ. Êóïðèÿíîâ, andÀ.À. Ãîëóáîâ. "Âëèÿíèå äîìåííîé ñòðóêòóðû ôåððîìàãíåòèêà íà òîêîâûé òðàíñïîðò äæîçåôñîíîâñêèõ sfs-ïåðåõîäîâ Òðóäû XIX ìåæäóíàðîäíîãî ñèìïîçèóìà "Íàíîôèçèêà è íàíîýëåêòðîíèêà", volume 1, pages 910.Èçäàòåëüñòâî Íèæåãîðîäñêîãî ãîñóíèâåðñèòåòà èì.
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