Professor Baroni’s work stands at the nexus of condensed matter physics and computational science, where his contributions have redefined the way researchers simulate and understand the electronic and thermal behavior of materials from first principles. His pioneering development of new quantum mechanical methods has enabled the detailed and accurate prediction of complex physical phenomena, essential for advancing materials science and engineering.

The APS specifically honors Baroni for his seminal advancements in first-principles methodologies, which form the theoretical backbone for investigating the electronic and thermal properties of condensed matter systems. His efforts in this area have not only enriched fundamental physics but also advanced practical computational techniques that facilitate research across various fields, including chemistry and materials science.

Central to Baroni’s acclaim is his role in developing and disseminating Quantum ESPRESSO, an open-source software suite that has become a cornerstone for electronic-structure calculations globally. This platform exemplifies the spirit of collaborative scientific progress, offering an accessible, versatile environment where physicists, chemists, and engineers alike can simulate material properties with quantum-level precision. His leadership in sustaining and expanding this software infrastructure manifests a commitment to democratizing high-performance computational tools for the worldwide scientific community.

Baroni’s academic career, spanning decades at the Scuola Internazionale Superiore di Studi Avanzati (SISSA), has been distinguished by continuous innovation and mentorship. His early work in the late 1980s, in collaboration with Paolo Giannozzi, laid the foundation of a method now widely employed to calculate the dynamical and dielectric properties of solids, crucial for interpreting vibrational spectra and understanding electron-phonon interactions.

Beyond theoretical formulations, Baroni’s research broke new ground in the past decade with the development of a novel theory of thermal conduction in condensed matter. This breakthrough, achieved with contributions from his talented protégés, addresses the fundamental mechanisms governing heat transport at the quantum level – a problem of immense significance in both fundamental physics and technological applications such as thermoelectrics and microelectronics.

The recognition also illuminates Baroni’s inventive discovery of an invariance principle which elucidates why various computational definitions of heat flux yield consistent thermal conductivity results in simulations. This insight resolves longstanding ambiguities in numerical modeling and enhances the reliability of computational predictions essential to material design.

Esteemed physicists such as Roberto Car, a leading authority in quantum simulations and co-developer of the Car–Parrinello method, have underscored the remarkable scope of Baroni’s contributions. Car highlights Baroni’s innovative method for assessing electron responses to atomic displacements, a technique that transformed the accuracy of phonon calculations, vital for studying superconductivity and transport phenomena.

The Quantum ESPRESSO project, diligently nurtured and propelled by Baroni, epitomizes a paradigm shift in computational physics. Its open-software philosophy fosters an inclusive ecosystem where researchers can both utilize and enhance the platform, ensuring its continuous evolution and adaptation to emerging scientific challenges.

Stefano Baroni’s administrative and organizational skills further amplify his scientific impact. His tenure as director of the Centre Européen de Calcul Atomique et Moléculaire (CECAM) and his founding of the DEMOCRITOS National Center for Numerical Simulation at SISSA laid infrastructural foundations that support advanced computational research at a European and national level, fostering interdisciplinary cooperation and innovation.

Currently, Baroni co-leads the “Materials and Molecular Sciences” spoke of the ICSC, a pivotal Italian research center focusing on high-performance computing, big data, and quantum computing. Such roles underscore his commitment to integrating computational physics with cutting-edge technological paradigms, positioning Italy at the forefront of frontier scientific research.

This award, named after Aneesur Rahman—the pioneer of molecular dynamics—signifies recognition not just of Baroni’s individual achievements but also his broader contributions to reshaping the entire landscape of computational physics. His work epitomizes the ideal synthesis of theoretical elegance, computational rigor, and open collaboration, which collectively propel the discipline into new realms of possibility.

Baroni’s reflections on receiving the Rahman Prize reveal a profound sense of gratitude toward his colleagues and students, whose collective efforts have propelled his research forward. Their shared dedication has transformed complex theoretical constructs into robust, widely accessible computational methodologies that now serve as foundational tools for the scientific community worldwide.

The legacy of Stefano Baroni’s work extends beyond the immediate scientific outputs to influence the culture of computational physics itself. By championing open-source development and fostering interdisciplinary collaboration, he has helped shape a more inclusive, efficient, and innovative research environment—one that promises to accelerate discoveries across multiple scientific fields for years to come.

Subject of Research: Computational physics, condensed matter physics, quantum materials simulation, thermal and electronic properties of materials.

Article Title: Stefano Baroni Receives 2026 Aneesur Rahman Prize for Transformative Contributions to Computational Physics

News Publication Date: Not specified

Web References:
https://mediasvc.eurekalert.org/Api/v1/Multimedia/22c287ab-78b8-448d-8d4d-993156620e57/Rendition/low-res/Content/Public

Image Credits: SISSA

Keywords: Computational physics, molecular dynamics, materials science, computer modeling, electronic-structure calculations, quantum materials, thermal conduction, Quantum ESPRESSO, molecular simulations, condensed matter physics

Traditional chiral metamaterials, characterized by their ability to convert linear inputs into rotational outputs, have garnered attention for their intrinsic dual-modality. These structures exhibit unique properties such as enhanced wave manipulation, circular polarization control, and applications in chiral active fluids. However, their practical deployment has long been stymied by two critical limitations: the coupling of deformation modes prevents independent control over twisting and contraction, and their allowable strain typically fails to exceed 2%, restricting their operational range.

Zhao and colleagues circumvent these barriers by conceptualizing and fabricating a modular assembly that combines auxetic planar tessellations with origami-inspired columnar arrays, engineering a platform where in-plane and out-of-plane deformations can be selectively actuated. The metamaterial is designed to operate under a single-degree-of-freedom actuation scheme, prompting the assembly to twist through a broad 0° to 90° range, contract in-plane by as much as 25%, and shrink out-of-plane by over 50%. This decoupling of motion control is a significant deviation from prior metamaterial systems and sets new standards for adaptability.

At the heart of this metamaterial’s performance is the ingenious integration of rotating-square tessellations and tubular Kresling origami arrays. The planar tessellations predominantly govern in-plane twist and contraction, leveraging the auxetic behavior to achieve a controlled and reversible deformation. Simultaneously, the tubular Kresling columns provide robust out-of-plane shrinkage through their origami-dependent bistability and folding transitions. This bifurcation of roles allows for precise, independent manipulation of complex shape changes.

The researchers employed a blend of experimental prototyping and computational simulations to probe the mechanical responses of these assemblies. Physical models fabricated using additive manufacturing techniques confirmed the theoretical predictions, showcasing smooth transitions between twisted and contracted states as well as dramatic vertical compression without loss of structural integrity. Numerical models further illuminated the stress distributions and energy landscapes underpinning the modular metamaterial’s remarkable ability to switch deformation modes selectively.

One of the most remarkable achievements presented in the study is the identification of two distinct actuation regimes. The first regime enables twisting of the metamaterial with unconstrained translational movement, maintaining the modular assembly’s spatial positioning. The second allows linear displacement along the vertical axis with free rotation, facilitating versatile mechanical reconfigurations. These regimes highlight an unprecedented level of tunability and suggest potential for deployment in adaptive robotics and responsive architecture.

The modularity of the assembly is a critical enabler of its multifunctionality. By connecting discrete units of tessellations and origami arrays, the architecture supports reprogrammable mechanical instability, a feature where the metamaterial’s deformation pathway can be adjusted post-fabrication. This adaptability extends to local chirality control, allowing selective tuning of handedness within the material, a feature rarely achievable in bulk-engineered chiral metamaterials.

Beyond mechanical performance, the metamaterial exhibits scalable load-bearing capabilities, making it suitable for applications stretching from micro-scale devices to large-scale engineering structures. Its capacity for multistability—the presence of multiple stable deformation states—introduces opportunities for mechanical memories encoded within hysteresis loops, enabling systems that retain deformation states without continuous applied forces.

The implications of this modular chiral origami metamaterial reverberate across multiple scientific and engineering fields. Robotic transformers, capable of reconfiguring their shape and motion modes autonomously, stand to benefit considerably. Similarly, thermoregulation systems could exploit the metamaterial’s large, reversible volume changes to modulate thermal conductivity or airflow dynamically.

Another fascinating avenue opened by this work is the potential for implementing non-commutative state transitions within mechanical systems—where the order of deformation operations affects the final state, enabling complex information processing behaviors. This could lead to mechanical computing elements that function based on physically encoded sequences, harnessing the metamaterial’s multistability and modular kinetics.

Furthermore, the plug-and-play nature of the metamaterial’s design offers facile integration into energy-absorbing devices, where impact dissipation can be tuned by activating specific deformation modes. Applications in information encryption are also conceivable, as spatially patterned chirality and multistable states can encode data within physical configurations resistant to trivial decoding.

In essence, Zhao et al. present a new class of architected materials that bridge the gap between static metamaterials and dynamic, machine-like systems. Their work showcases the power of combining classical auxetic principles with origami-inspired design, yielding metamaterials that are not only mechanically versatile but also programmable and scalable.

The study propels the paradigm of metamaterials towards becoming true mechanical ‘machines’ capable of adaptive, autonomous function. It underscores a future where materials themselves perform complex tasks traditionally reserved for engineered devices, opening a vista of transformative applications tied to multimodal deformation, active function, and reprogrammability.

As the relentless advancement of metamaterial science continues, this research marks a pivotal moment where chiral origami techniques and auxetic assemblies converge to redefine the mechanical intelligence embedded within synthetic solids. From robotic actuation to information security, the horizons for these modular chiral systems are expanding, inviting interdisciplinary innovation and experimentation.

The exploration of instability reprogramming, local chirality tuning, multistability, and the integration of foldable architectures warrants further investigation, promising a treasure trove of mechanical functionalities that blend physics, geometry, and material science. The work of Zhao et al. thus stands as a beacon for next-generation metamaterial design, opening avenues for intelligent structures with tailored, tunable, and transformative capabilities.

Subject of Research: Modular chiral origami metamaterials with decoupled multimodal deformation mechanisms enabling large, programmable actuation and multifunctionality.

Article Title: Modular chiral origami metamaterials.

Article References:
Zhao, T., Dang, X., Manos, K. et al. Modular chiral origami metamaterials. Nature 640, 931–940 (2025). https://doi.org/10.1038/s41586-025-08851-0

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s41586-025-08851-0

Keywords: Metamaterials, chiral origami, auxetic tessellations, modular assembly, multimodal deformation, multistability, mechanical memory, programmable instability, robotic transformers, tunable chirality, energy absorption, information encryption

Employing a novel mixed-ligand strategy, the research team designed these innovative CMOFs by synergistically blending inexpensive chiral azoles with achiral carboxylic acids. This method led to the formation of a series of frameworks designated from FIR-101 to FIR-106, each characterized by unique multilevel chirality. The frameworks exhibit an unprecedented ultra-tunable structure that can accommodate a diverse range of ligands and metal ions, revealing their versatility across numerous applications. S-FIR-106, one of their most notable creations in this series, has achieved a record surface area of 3040 m²/g, positioning it as one of the most porous chiral MOFs identified in literature to date.

Beyond their impressive structural properties, these chiral frameworks demonstrated outstanding stability across a spectrum of solvents, pH levels ranging from 2 to 12, as well as under extreme thermal conditions. This behavior strongly distinguishes them from previously reported chiral MOFs, showcasing their ability to maintain crystallinity and structural integrity following rigorous testing. These traits ensure the frameworks are robust and suitable for extended-term applications, which is pivotal in industrial settings where durability is essential.

An interesting aspect of the research is the potential of these CMOFs to act as heterogeneous catalysts for asymmetric transformations. One striking example includes the performance of S-FIR-101 in catalyzing the Oxa-Diels-Alder reaction, a notable reaction in organic synthesis. The framework displayed remarkable performance with high yields and significant enantioselectivity, highlighting its efficacy in asymmetric catalysis. The research team further enhanced catalytic performance by precisely tuning the metal centers within the framework, achieving an impressive enantiomeric excess of up to 98% in one instance.

The implications of synthesizing these CMOFs are profound, primarily due to the method’s ability to reduce the cost associated with producing high-performance chiral catalysts. Additionally, the synthesis process is designed for scalability, evidenced by the successful production of over 100 grams of S-FIR-101 in a single batch. This feature is critical for the anticipated industrial applications, as it demonstrates practicality in scaling up production to meet market demand.

Notably, the methodological advancements introduced by the researchers embody a shift towards a more sustainable synthesis of chiral materials. The utilization of cost-effective and readily available ligands not only minimizes production costs but also aligns with the growing trend of sustainability in materials science. By employing a straightforward yet efficient approach, the team sets a precedent in breaking down barriers associated with the high cost of chiral catalysts, encouraging broader accessibility to high-performance materials in various sectors.

Furthermore, the research paves the way for extensive investigations into the versatility of these frameworks concerning various reactions beyond mere catalysis. The combination of multilevel chirality and tunable frameworks opens up avenues for exploring other applications such as gas storage, separation processes, and even drug delivery systems, making CMOFs a focal point in ongoing material science research.

In conclusion, this research conducted by the State Key Laboratory of Structural Chemistry underscores the innovative capabilities of Chinese researchers in the field of materials science. Supported by the National Key R&D Program of China and the National Natural Science Foundation of China, their work is a testament to the collaborative efforts shaping the future of chiral materials. The prospects for these frameworks are overwhelmingly promising, potentially transforming practices in asymmetric catalysis and other areas while drawing on the elements of sustainability and cost-effectiveness essential for modern research.

The insights provided by this research not only advance the scientific community’s understanding of chiral frameworks but also serve as a crucial springboard for future innovations. As materials scientists continue to push the boundaries of what is possible with CMOFs, the implications for practical applications in industries such as pharmaceuticals and fine chemicals cannot be overstated. In an age where efficiency and sustainability are paramount, these groundbreaking findings are indeed a significant leap toward achieving long-term goals in materials science.

Subject of Research: Chiral metal-organic frameworks (CMOFs) for asymmetric catalysis
Article Title: Significant Breakthrough in Chiral Metal-Organic Frameworks
News Publication Date: [Publication date missing]
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Image Credits: ©Science China Press

Keywords

Chiral metal-organic frameworks, asymmetric catalysis, materials science, ultrahigh surface area, multilevel chirality, sustainable synthesis.