News

INL researchers publish in Nature Materials on building atomic-scale ‘spin chains’ to study quantum excitations

In a recent publication in Nature Materials, INL researchers João Henriques and Joaquín Fernández-Rossier, through an international collaborative effort, explored a very sought-after quantum spin system. In a breakthrough that brings the strange world of quantum spins into sharper focus, researchers have successfully created and studied tiny chains of molecular rings, unlocking new insights into how quantum spin excitations behave in these atomic-scale systems. This work centres on a famous quantum physics model known as the spin-1/2 Heisenberg chain, a system where individual spins (a fundamental quantum property related to magnetism) interact in a one-dimensional line. Theorists predicted decades ago that these chains should have “gapless” excitations, meaning tiny disturbances in the spin system can occur with extremely small energy costs as the chain gets longer. However, building such chains at the nanoscale and measuring these effects directly has proven extremely challenging – until now. The research team achieved this by linking special carbon-based molecules called olympicenes – shaped like miniature Olympic rings – into precise linear chains. Each olympicene hosts an unpaired electron, creating a perfect space for quantum spin physics. Using a powerful technique called inelastic electron tunnelling spectroscopy, the scientists were able to directly measure how the […]

Taking inspiration from the human brain to create a new class of intelligent, light-powered devices

At INL, our researchers are pushing the boundaries of brain-inspired computing, developing neuromorphic systems that process sensory data the way nature does – fast, efficiently, and with minimal energy. In a recently published paper in Scientific Reports, INL researchers developed a tiny micropillar quantum resonant tunnelling diode, or RTD, that behaves like a sensory neuron. This ‘neuron’ is capable of detecting light, processing information, and converting it into electrical signals, all within a single nanoscale device. Researcher Bruno Romeira explains, “This is possible because we are using quantum phenomena.” At its core, this system is a III–V semiconductor structure (materials widely used in photonics and high-speed electronics) designed to respond directly to incoming near-infrared light. When the light intensity reaches a certain threshold, the device enters a state known as negative differential resistance, triggering large-amplitude voltage oscillations. In other words, the incoming light signal is transformed into rhythmic electrical bursts, just like the firing patterns seen in biological neurons. Traditional neuromorphic hardware often relies on complex circuits, combining separate memory components and oscillators to mimic the way biological neurons process information. This increases the size, power consumption, and complexity of the system. The new device developed by Bejoys Jacob and […]

Hazal Gergeroglu: Advancing Science as a Research Engineer and Advocating for Women in STEM

At INL, research engineers are at the forefront of scientific innovation, bridging the gap between research and practical applications. Meet Hazal Gergeroglu, a Research Engineer in the Piteira Research Group, working on cutting-edge sensor technologies for lithium-ion batteries while also advocating for greater inclusivity in STEM. In this interview, Hazal shares how her role has evolved, the impact of her research on energy storage solutions, and the challenges in her field. She also reflects on the barriers women in STEM still face and the importance of fostering a more equitable and inclusive scientific community. How has your role as a Research Engineer evolved over time? When I started at INL as a research engineer, my work focused primarily on experimental research, sensor design, and data analysis. Over time, I took on additional responsibilities in project management, team coordination, and interdisciplinary collaborations. As part of these advancements, I am currently producing various sensor components and assembling these sensors into lithium-ion batteries to improve their safety and performance. In the future, I aim to keep participating in projects integrating scientific research into the industry, focusing on microsensors for batteries, ensuring more efficient and reliable energy storage solutions. Can you describe your work in the […]

INL Hosts Insightful Session with Professor Manuel Heitor on European Research and Innovation

On Friday, February 28th, INL had the distinct privilege of welcoming back Professor Dr. Manuel Heitor, former Minister of Science in Portugal (2015-2022), an important figure following closely the conception, growth, and continued success of INL. Professor Heitor addressed a nearly full auditorium, sharing his profound insights into the dynamic evolution of research and innovation across Europe. The discussion revolved around the “Align, Act, Accelerate (AAA) Report,” which critically examines the current and emerging challenges facing European research and innovation. The report offers strategic recommendations to refine European funding frameworks, ensuring adaptability within an increasingly complex and fast-paced global landscape. The AAA Report has garnered significant attention and endorsement from leading publications, including Times Higher Education and Science Business. Professor Heitor’s ongoing efforts, such as coordinating the workgroup that delivered the AAA Report, or the survey for CESAER, further reinforce his pivotal role in shaping European research and innovation strategies. Science for PolicyProfessor Heitor’s presentation provided an extensive analysis of the key themes explored in the AAA Report, with a strong emphasis on “science for policy”—the integration of scientific knowledge into policymaking to drive forward-looking strategies in times of transformation. One of his central messages was to “Choose Europe,” advocating […]

Could this next-generation battery technology power the future?

At INL – International Iberian Nanotechnology Laboratory, cutting-edge research is underway to develop next-generation solid-state thin-film lithium-ion batteries. These new batteries could redefine energy storage for wearable electronics, medical implants, IoT devices, and even aerospace technologies. Leading this innovative work is Chadrasekhar Loka, a researcher at Sadewasser group, working towards the PRR New Generation Storage Agenda. Loka is focused on interfacial engineering to overcome some of the toughest challenges in solid-state battery technology. By replacing the traditional liquid electrolyte (the part responsible for many safety risks in conventional batteries) with a solid-state electrolyte, these batteries become significantly safer, more durable, and capable of higher energy densities. Despite their enormous potential, solid-state batteries face several technological hurdles, especially at the interface between electrodes and electrolytes. Poor contact at these interfaces increases resistance, slowing down ion movement and reducing battery performance over time. To tackle these issues, Loka’s work focuses on creating ultra-thin solid electrolytes and precisely tailored electrode surfaces using advanced techniques like Physical Vapor Deposition (PVD) and Chemical Vapor Deposition (CVD). These methods allow the creation of layers with nanometre precision, enhancing both ionic conductivity and electrochemical stability, crucial for long battery life and reliable performance under demanding conditions. This […]

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Can Earth’s gravitational field monitor climate change?

The measurement of our planet’s gravitational field, known as gravimetry, allows us to extrapolate the rate at which climate changes are occurring by detecting small variations in Earth’s gravitational field, caused, for example, by melting ice. Inês Sofia Garcia, a Research Engineer at INL, is focused on the development of a high-precision MEMS (micro electromechanical system) accelerometer, crucial for detecting the gravity field shifts of our planet. This accelerometer is a system capable of converting a mechanical phenomenon into an electrical one, and vice versa, transforming an electrical signal into a mechanical displacement. “Our group is creating a MEMS accelerometer to measure Earth’s acceleration changes,” explains Inês Garcia. “We handle the system’s modelling, design, fabrication, and characterisation.” With rigorous demands for stability, power management, and satellite orientation accuracy, this research work strengthens Portugal’s position in the global space sector. The team developed the device as part of the uPGRADE project, and at INL, we are already looking ahead to its next phase: uPGRADE-NEXT. In this new project, the device will undergo space qualification and is set to be included in the first uPGRADE microsatellite launch, planned for mid-2026. These flagship projects, led by Rosana Dias and Filipe Alves, will also […]

INL Celebrates Women in Science

Today, February 11, in celebration of the International Day of Women and Girls in Science, the International Iberian Nanotechnology Laboratory (INL) proudly presents its latest video tribute to all the Women working at INL. This powerful visual story highlights the dedication, talent, and achievements of women scientists at INL who are shaping the future of nanotechnology. Despite progress in gender equality, only 41% of scientists and engineers in Europe are women. At INL, we are committed to increasing this representation, with 42% of our researchers being women—a testament to our dedication to inclusivity and scientific excellence. The video showcases the inspiring work of several outstanding women scientists, engineers, and facility managers at INL. Through their groundbreaking research and unwavering commitment, they are paving the way for future generations and proving that there is a place for women in science. 📽 Watch the video and join us in celebrating these incredible women who are transforming the world of science and INL. Thank you to all the women at INL for your resilience, passion, and commitment to pushing scientific boundaries. And to all INLers—thank you for supporting and championing an inclusive and diverse research environment. Let’s continue breaking barriers and building a future where science belongs […]

INL’s Women in Science Shine at PQHack 2025

INL proudly celebrates the remarkable achievement of three of its researchers, Alexandra Ramôa, Ana Neri, and Sara Franco, members of the Galvão Research Group who, along with Bruna Salgado from the University of Minho, secured second place at PQHack 2025 as Team Quantum Shemulation. Their outstanding performance in tackling quantum computing challenges earned them the prestigious Team Quantum Shemulation prize on International Day of Women and Girls in Science. PQHack 2025 proved to be an exciting competition, bringing together 39 participants across 12 teams for a 24-hour quantum computing hackathon. Fueled by determination (and plenty of coffee and pizza), the teams engaged in a series of complex coding challenges designed by experts in the field. The results showcased the incredible talent and innovation within the quantum community. This achievement is not only a testament to the expertise and dedication of our INLers but also an inspiration for greater representation of women in quantum science. As we celebrate International Day of Women and Girls in Science, we recognize their hard work and contributions in shaping the future of quantum technologies. Congratulations to all the participants, and especially to Alexandra, Ana, and Sara for making INL proud! Photo kindly provided by PQHack 2025 Team