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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:26.0pt;font-family:"Times New Roman",serif;color:#006FC0">Physics & Astronomy Colloquium</span></b></span><o:p></o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:26.0pt;font-family:"Times New Roman",serif">Tuning Itineracy of Correlated Ground and Excited States in Semiconductor Moiré Lattices</span></i><o:p></o:p></p>
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<span class="m-642861739458883080scxw113168724"><span style="font-size:11.0pt"> </span></span><span style="font-size:11.0pt"><br>
</span><span class="m-642861739458883080normaltextrun"><b><i><span style="font-size:28.0pt;font-family:"Times New Roman",serif">Dr. Ben Feldman</span></i></b></span><o:p></o:p></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:28.0pt;font-family:"Times New Roman",serif">Stanford University</span></b></span><o:p></o:p></p>
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<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Abstract: When two materials with similar lattice constants are stacked with a small interlayer twist, a long-wavelength moiré superlattice forms. This can generate flat electronic bands which
host a variety of interaction-driven phases. In this talk, I will describe electronic compressibility measurements of moiré systems composed from semiconducting transition metal dichalcogenides (TMDs). By modifying the constituent materials, twist angle, and
applied electromagnetic fields, we reveal novel correlated ground states and excitations, and identify the spin, valley, and real-space character of these states. Furthermore, our technique enables study in the limit of long moiré wavelength, where we observe
an intricate phase diagram of electron solids and topological fluids as a function of carrier density and magnetic field. I will discuss how these findings reflect the interplay between electronic interactions and the nature of the underlying moiré bands.<o:p></o:p></span></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Thursday, May 4th, 2023<o:p></o:p></span></b></span></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">3:40 PM in Winston Chung Hall (Room 138)</span></b></span><o:p></o:p></p>
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<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Coffee will be served at 3:10 PM in the Barkas Lounge (3049 Physics)</span></b></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Heather McDermott</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Travel & Event Coordinator</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Physics & Astronomy Dept.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">University of California Riverside</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Ph: 951-827-6169</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><a href="mailto:heatherm@ucr.edu"><span style="color:#0563C1">heatherm@ucr.edu</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">AVAILABLE VIA ZOOM </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">FOR VIRTUAL OFFICE </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">HOURS AT:</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Helvetica;color:#232333;background:white"><a href="https://ucr.zoom.us/my/heathermcdermott" title="https://ucr.zoom.us/my/heathermcdermott"><span style="color:#0563C1">https://ucr.zoom.us/my/heathermcdermott</span></a></span><o:p></o:p></p>
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