Leader: Vladimir Zhaketov
Work phone number: +7 (496) 216-28-75
Work E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Scientific problem:
According to current thinking, semiconductor technologies will reach the end of their useful life within the next few decades. Further increases in computing power by increasing processor transistor density will be impossible due to reaching the 'quantum limit'. Therefore, the development of alternative technologies is required. These include, in particular, such areas of nanoelectronics as classical (digital) superconducting nanoelectronics, superconducting spintronics, superconducting neuromorphic computing, as well as the use of superconductivity in quantum technologies: superconducting quantum computing. The development of semiclassical and quantum devices based on superconducting/ferromagnetic (S/F) systems, as well as of superconducting nanospintronics devices, requires a deep fundamental understanding of the superconducting and magnetic phenomena occurring in these systems at the nanoscale. Nuclear physics research techniques are extremely efficient for this goal. The most widely used nuclear physics technique for studying condensed matter physics is neutron optics. Neutron reflectometry (NR) studies the scattering of low-energy neutrons from surfaces and from external or internal interfaces in multilayer thin films at grazing incidence. Recent investigations have proposed a number of Josephson structures based on superconducting (S), normal-metallic (N) and ferromagnetic (F) layers. The phenomena in these structures concern the induction of both superconductivity and ferromagnetism in nonmagnetic and nonsuperconducting (normal-metallic) layers. It is important to characterize the superconducting and magnetic phenomena in such systems at a fundamental level. Therefore, the key goal of this paper is nuclear-physical and complementary research of low-dimensional layered systems such as S/F.
Objective:
The aim of the project is to study the properties of the coexistence of superconductivity and magnetism in layered Fibonacci systems and to compare the properties of these systems with the ones of similar superlattices.
Tasks:
1. Investigation of the phase diagram of Nb/Gd-type quasiperiodic systems using polarized neutron reflectometry.
2. Investigation of the phase diagram of Nb/FePd-type quasiperiodic systems.
3. Investigation of systems using complementary techniques.
Research facilities: