[institut] Reminder-Center for Solid State Physics and New Materials Seminar - Today at 14:00 h

[Nenad Lazarevic]

Поштоване колегинице и колеге,

Са задовољством вас позивам на семинар Центра за физику чврстог стања и 
нове материјале под насловом:

"Strain tuned magnetic behavior in oxide thin films"

који ће одржати др Алберто Помар, Институт за науку о материјалима у 
Барселони. Семинар ће се одржати у читаоници Института за физику „Др 
Драган Поповић“, данас са почетком у 14:00 часова.

Пре почетка семинара, академик Зоран Поповић искористиће прилику да нам 
се обрати са новим информацијама о науци у Србији и нашем Центру.

Срдачан поздрав,
Ненад Лазаревић

Сажетак:

Transition metal oxides are known by their remarkable functional 
properties spanning a wide range of phenomena such as ferroelectricity 
and magnetism, as well as colossal magnetoresistance (CMR) and high 
temperature superconductivity. The mechanisms behind such extraordinary 
properties lie on the subtle balance between competing energies in the 
system. In particular, the extreme sensitivity of these properties to 
structural distortions and crystal chemistry offers many routes for 
controlling and engineering new functionalities. Interestingly, 
epitaxial growth of thin films introduces a new degree of freedom in the 
equation due to the elastic energy involved to fir the different lattice 
parameter and structure of film and substrate. In this way, it has been 
demonstrated that a fine tuning of strain relaxation mechanisms may lead 
to unexpected properties.
In this talk, I will review some of the results of our grupo on the 
growth and properties of several perovskite manganese thin films. First, 
i will show that both, antiferromagnetic or ferromagnetic behavior may 
be achieved in LaMnO3 thin films by careful tuning the strain state of 
the film. The possible origin of this magnetic ordering will be 
discussed as well as its implications in the electronic properties. 
Furthermore, results on the magnetic anisotropy of oxide films will also 
be presented and their potential applications in electronic devices will 
be shown.

-- 
Institute of Physics Belgrade
Pregrevica 118, 11080 Belgrade, Serbia
http://www.ipb.ac.rs/