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Dear All,

SOLID STATE & STRUCTURAL CHEMISTRY UNIT

INDIAN INSTITUTE OF SCIENCE

BANGALORE  – 560  012

SEMINAR

Speaker: Mr. RANJAN DAS

Title

 Inorganic spintronics to molecular spintronics

Date & Time: Thursday 20th September, 2018 at 4.00 PM

Venue:     SSCU AUDITORIUM

Abstract:

The second half of 20th century could be called the microelectronic era with sufficient justification. Spintronics is a new class of devices which gave a huge breakthrough in the microelectronic world. Spintronics is primarily based on spin degrees of freedom in addition to charge degrees of freedom of  an electron. Electrons have both charge and spin, but until recently, charges and spins have been considered separately. In conventional electronics charges are manipulated by an external electric field but spins are ignored. The spin based electronics are more powerful for certain types of computations as compared to that of conventional electronic devices. Further, its smaller size and relatively less consumption of electricity makes it advantageous over other charge based electronic devices .

In this presentation I shall be discussing the fundamental concepts of spintronics and the advantages of molecular spintronics over the inorganic spintronics. I shall present the case study of LSMO/Alq3/Co [2,3] interfaces which shows high Magnetoresistance (~200%), behaving as an “organic spin valve”.

References:

[1] Rev. Mod. Phys80.1517 (2008)

[2] Z. H. Xiong et al., Nature (London) 427, 821 (2004)

[3] Dali Sun et al., Phys. Rev. Lett. 104, 236602 (2010)

[4] Meifang Sun et al., J. Mater. Chem. C, 6, 6619 (2018)

[5] S. Das Sarma American Scientist, 89, 516 (2001)

                          All are cordially invited to attend

Convener

Seminars

Coffee/Tea : 3.30pm – 3.45pm

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