„Magnetite fascinating material and a test ground for new theoretical and experimental techniques” – seminarium

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Akademickie Centrum Materiałów i Nanotechnologii AGH zaprasza na seminarium, które odbędzie się 18 czerwca br. o godz. 15.00.

 

Referat pt. „Magnetite fascinating material and a test ground for new theoretical and experimental techniques” wygłosi prof. dr hab. inż. Zbigniew Kąkol (Prorektor ds. Nauki AGH, Wydział Fizyki i Informatyki Stosowanej AGH).

 

Miejsce: ul. Kawiory 30, bud. D-16, sala audytoryjna ACMiN (1.02A).

„Magnetite fascinating material and a test ground for new theoretical and experimental techniques”

Probably none of the naturally existing minerals was utilized by mankind and nature more in its pristine form than magnetite. Navigation in the world, both by artificial and natural compasses, storage media and, finally, the tool in the emerging field of spin electronics are a few examples only. Magnetite will be probably also used to heat and destroy cancer cells. But despite its role in civilization, magnetite displays yet another fascinating face: the Verwey transition. In this first-order phase transformation, the resistivity drops two orders of magnitude when heated above transition temperature TV=124 K. Surprisingly, all groups of magnetite “application” and the Verwey transition are interwoven: cooling down magnetite below TV results in a drastic drop of electric conductivity, affecting its spintronic application and the thermal cycling across the transition greatly diminishes coercive force, i.e. magnetic memory. This transition is the subject of our extensive studies and will be discussed during the seminar.

 

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