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Join Zoom Meeting<br>
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Thursday 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
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york, times, serif;"><span style="font-size: 21.3333px;"
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<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>
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<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
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href="mailto:teichert@unileoben.ac.at"
moz-do-not-send="true">victor.baledent@universite-paris-saclay.fr</a><br>
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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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helvetica, 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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