In 2024, Lucie Lamy defended a thesis in contemporary history at Université Paris Cité entitled "La Fabrication de l'appartenance. Être ou devenir germano-balte après la Seconde Guerre mondiale (1945-2004)" [The Making of Belonging. Being or Becoming a Baltic German after the Seconde World War], for which she was awarded the CIERA Michael Werner Prize 2025. This research, largely carried out at the Centre Marc Bloch, questions the contours of ethnic “Germanness” in post-1945 Europe, using the example of the “Baltic Germans” - the former German-speaking minority in Estonia and Latvia. It highlights the long-term consequences (in West Germany, East Germany, Soviet, then independent Latvia and Estonia) of the “ethnic cleansing” carried out during or after the Second World War.

Her new post-doctoral research project, still taking a transnational approach to the history of migration in Europe in the 20th century, now focuses on international educational mobility towards France and Germany from the 1960s to the 1990s. She is conducting this research as part of the DFG-AHRC project "University Students as Migrants: A New History of Educational Mobility in Western Europe", hosted by the Department Globalizations in a Divided World of the Leibniz-Zentrum für zeithistorische Forschung (ZZF) in Potsdam (Germany) and by the Northumbria University (UK).