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RSI Research Seminar

Monday, November 17, 2025
12:00pm to 1:00pm
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Resnick Sustainability Center 120
Magnetic Refrigerants for Sustainable Cooling
Elena Priesen Reis, Graduate student, Fultz Lab, Engineering and Applied Science, Caltech,

Join us every other Monday at noon for lunch and a 30-minute research talk, presented by Resnick Sustainability Institute Graduate Fellows and Caltech researchers funded by the Resnick Sustainability Institute. To see the full schedule of speakers, visit the RSI Research Seminar web page. Seminars are currently in-person only. For more information, please reach out to [email protected]

Magnetic Refrigerants for Sustainable Cooling

Cooling currently contributes roughly 10 % of global CO₂ emissions, a figure that is set to rise. Magnetic refrigeration provides a solid-state, gas-free alternative, with performance determined by the central materials' magnetocaloric properties. In this talk, I'll show how substituting Fe with Co and Ni in La–Fe–Si alloys can shift their magnetic transitions close to room temperature while significantly reducing hysteresis and strain losses, demonstrating how compositional tuning can enable efficient, sustainable cooling.