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height="70"> <span> </span><img alt="Institut Ruđer
Bošković - Institut Ruđer Bošković"
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Wednesday 3nd November 2022 at 11:00, IF 3rd wing, lecture hall <strong></strong><br>
<br>
<div><span style="color: #55913c; font-family: times new roman,
new york, times, serif;"><span style="font-size: 21.3333px;"
data-mce-style="font-size: 21.3333px;"></span></span><span
style="color: #55913c; font-family: times new roman, new york,
times, serif;"><span style="font-size: 21.3333px;"
data-mce-style="font-size: 21.3333px;"></span></span><span
style="color: #55913c; font-family: times new roman, new york,
times, serif;"><span style="font-size: 21.3333px;"
data-mce-style="font-size: 21.3333px;"><b>Tuning quantum
properties in correlated fermions systems</b></span></span><span
style="color: #55913c; font-family: times new roman, new york,
times, serif;"><span style="font-size: 21.3333px;"
data-mce-style="font-size: 21.3333px;"></span></span><span
style="color: #55913c; font-family: times new roman, new york,
times, serif;"><span style="font-size: 21.3333px;"
data-mce-style="font-size: 21.3333px;"></span></span></div>
<div><b style="color: #000000; font-family: arial, helvetica,
sans-serif; font-size: 18.6667px;" data-mce-style="color:
#000000; font-family: arial, helvetica, sans-serif; font-size:
18.6667px;">Victor Baledent</b><br>
</div>
<div><span style="font-family: sans-serif;"><span
style="font-size: 14.6667px;" data-mce-style="font-size:
14.6667px;"><b>Universite Paris Saclay<br>
<a class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:teichert@unileoben.ac.at">victor.baledent@universite-paris-saclay.fr</a><br>
</b></span></span></div>
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<div align="justify">Systems with strongly correlated electrons
offer a wide range of remarkable properties. It is this
correlation that allows for example the insulating-to-metal
transition or superconductivity. In a large number of systems,
several of these properties can coexist or compete. The presence
of two orders in the very same or adjacent phases implies the
influence of one on the other. This more or less complex
entanglement often results in much more than the trivial sum of
the two properties, paving the way to new remarkable properties.
This is the case of multiferroic compounds where new couplings
appear, allowing to tune the properties with an external
parameter.<br>
I will present the example of RMn2O5 (R : rare earth) family of
manganites presenting both magnetic order and ferroelectricity.
After elucidating the origin of the magneto-electric coupling, I
will show how the tunability of its properties is possible using
pressure or magnetic field, and propose the underlying
mechanisms. If time permits, I will also present an example with
a larger number of instabilities: BaFe2Se3. Indeed, we have
shown that this compound shows multiferroicity,
superconductivity, a structural transition and an
insulator-metal transition in a reduced area of the phase
diagram.<br>
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<div align="justify"><strong>LOCATION:</strong> <span> </span><strong
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none; white-space: normal; word-spacing: 0px;"
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sans-serif; font-size: 16px; font-style: normal;
letter-spacing: normal; text-indent: 0px; text-transform:
none; white-space: normal; word-spacing: 0px;">Institute of
Physics, 3rd wing</strong></div>
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<strong><span lang="EN-GB"><span id="DWT704"><span id="DWT713">Seminar</span></span></span><span
lang="EN-GB"> </span></strong><strong style="color: #000000;
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background-color: #ffffff;"><span lang="EN-GB">hosts</span></strong><b
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