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Research Topics
Superconductor-Insulator transition in thin films
The revelation of the Superconductor-Insulator transition (SIT) in thin disordered films has triggered significant experimental and theoretical efforts aimed at unveiling the transport principles behind the transition. Although the two leading theoretical models describing the phenomenon, namely the percolation picture and the "dirty boson" model, were proposed at a very early stage, experimental trials carried out during the last two decades could not conclusively rule out any model out of them. Our main goal is to further clarify this issue, focusing on SIT in amorphous Indium oxide thin films.
Spintronics
The main motivation of spintronics is to exploit the spin degree of freedom of electrons in the elementary electronic devices. As a first step towards realizing spintronics, researchers are trying to understand the physics of how to create a spin polarized electron beam, how to inject spin polarized electrons into semiconductors and then how to manipulate and detect them in a real electronic circuitry. So far some success has been achieved in producing spin polarized electron beam but subsequent steps, such as injection of polarized electrons and detection methods etc., still remain unsettled. Many approaches for such devices have been proposed, our interest is in the experimental realization of a few of them.
Inorganic nanotubes
Electronic measurements of nanotubes are of great interest for fundamental understanding of the physical phenomena in quasi-one-dimensional systems as well as the possibility to fabricate new electronic devices based on these nanotubes. This project focuses on surveying the transport characterizations of inorganic nanotubes, such as WS2 and MoS2, synthesized by the group of Reshef Tenne at the Materials and Interfaces Department here at the Weizmann Institute.
Self assembled organic monolayers
The constant demand for miniaturization of the electronic components requires new type of materials and technologies, which will ensure operation of the scaled components. Yet another approach development of the novel components which utilize not only the electron's charge but also its spin degree of freedom. There is much interest in the self assembled organic monolayers due to their ability to modify the electronic properties of their substrates. The interest is fueled by the possible role that these thin films can play in innovative electronic devices. This project is being carried out in collaboration with Ron Naaman's Group from the Chemical Physics Department here at the Weizmann Institute.
