MatterPub Date : 2025-05-30DOI: 10.1016/j.matt.2025.102194
Chiara Massetti, Carolina Crosta, Florian Le Mardelé, Ivan Mohelský, Christian Martella, Alessandro Molle, Milan Orlita, Carlo Grazianetti, Fabio Pezzoli
{"title":"Quantum confinement effects in the topological Dirac semimetal α-Sn on InSb(111)","authors":"Chiara Massetti, Carolina Crosta, Florian Le Mardelé, Ivan Mohelský, Christian Martella, Alessandro Molle, Milan Orlita, Carlo Grazianetti, Fabio Pezzoli","doi":"10.1016/j.matt.2025.102194","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102194","url":null,"abstract":"The diamond-like allotrope of Sn (α-Sn) is tantalizing, being an elemental semimetal that hosts a range of topological properties. Despite the intriguing potential of this quantum material, a detailed understanding of its nontrivial electronic structure remains relatively poor. Here, we prepared α-Sn in a well-defined quantum phase (i.e., topological Dirac semimetal) by applying a compressive strain via epitaxial growth on the (111) surface of an InSb substrate. We varied the thickness of the α-Sn epilayer to single out the emergence of quantum confinement effects. Our electrical investigation suggests a thickness-dependent modification of transport mechanisms. These results are complemented by the measurement of the cyclotron resonance, which manifests the role of quantum confinement in defining the effective mass of topological Dirac fermions as bulk carriers. Our results contribute to deepening the knowledge of the α-Sn electronic properties. This is pivotal to increase the future applicability of Sn-based architectures into beyond-state-of-the-art devices.","PeriodicalId":388,"journal":{"name":"Matter","volume":"2 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Leveraging giant magnetoelasticity in soft matter for acoustic energy harvesting","authors":"Junyi Yin, Shaolei Wang, Jing Xu, Xun Zhao, Guorui Chen, Xiao Xiao, Jun Chen","doi":"10.1016/j.matt.2025.102156","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102156","url":null,"abstract":"To address the challenge of recycling energy from low-density acoustic waves found in everyday sounds such as speech and music, we developed a soft acoustic energy harvester based on the giant magnetoelastic effect. This harvester efficiently captures energy from various environmental sound sources. It operates by combining the giant magnetoelastic effect with a spray-coating and magnetic pre-orientation process, enabling it to convert multi-directional acoustic waves into electrical energy across a wide frequency range (0–900 Hz). The magnetoelastic generator achieves a short-circuit current density of 98 μA cm<sup>−2</sup> at a low internal impedance of 300 Ω, representing a significant improvement in current output that achieves a 100-fold increase compared to existing counterparts for acoustic energy harvesting. With inherent waterproofness and dustproofness, it can function effectively in humid or dusty conditions without extra encapsulation. The acoustic energy harvester demonstrates excellent scalability, making it suitable for diverse applications in sustainable energy systems.","PeriodicalId":388,"journal":{"name":"Matter","volume":"18 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-28DOI: 10.1016/j.matt.2025.102149
Martin T. Dove, Naike Shi
{"title":"The phase transition in copper pyrophosphate, Cu2P2O7: Insights and implications for the interpretation of negative thermal expansion","authors":"Martin T. Dove, Naike Shi","doi":"10.1016/j.matt.2025.102149","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102149","url":null,"abstract":"The origin of negative thermal expansion (NTE) in <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><msub is=\"true\"><mtext is=\"true\">Cu</mtext><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi mathvariant=\"normal\" is=\"true\">P</mi><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi mathvariant=\"normal\" is=\"true\">O</mi><mn is=\"true\">7</mn></msub></mrow></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.432ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -796.9 4100.7 1047.3\" width=\"9.524ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMAIN-43\"></use><use x=\"722\" xlink:href=\"#MJMAIN-75\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(1279,-150)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-32\"></use></g></g><g is=\"true\" transform=\"translate(1732,0)\"><g is=\"true\"><use xlink:href=\"#MJMAIN-50\"></use></g><g is=\"true\" transform=\"translate(681,-150)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-32\"></use></g></g><g is=\"true\" transform=\"translate(2868,0)\"><g is=\"true\"><use xlink:href=\"#MJMAIN-4F\"></use></g><g is=\"true\" transform=\"translate(778,-150)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-37\"></use></g></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><msub is=\"true\"><mtext is=\"true\">Cu</mtext><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi is=\"true\" mathvariant=\"normal\">P</mi><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi is=\"true\" mathvariant=\"normal\">O</mi><mn is=\"true\">7</mn></msub></mrow></math></span></span><script type=\"math/mml\"><math><mrow is=\"true\"><msub is=\"true\"><mtext is=\"true\">Cu</mtext><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi mathvariant=\"normal\" is=\"true\">P</mi><mn is=\"true\">2</mn></msub><msub is=\"true\"><mi mathvariant=\"normal\" is=\"true\">O</mi><mn is=\"true\">7</mn></msub></mrow></math></script></span> has been examined using diffraction data at ambient and raised pressure. From an analysis of spontaneous strains and order parameters associated with the structural phase transition, we show that the NTE can be explained wholly on the basis of the structural distortions that accompany the phase transition. We demonstrate that the NTE diverges at the phase transition, because the phase transition shows tricritical behavior. The unusual aspect of the phase transition is that it gives rise to an <em>expansion</em> on cooling, whereas normally, a structural phase transition leads to an overall volume <em>reduction</em>. This behavior, which we identify as a uniaxial spontaneous strain, can be understood in terms ","PeriodicalId":388,"journal":{"name":"Matter","volume":"98 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multiresonance-donor-multiresonance emitter for efficient narrowband blue OLEDs","authors":"Yi-Hui He, Jun-Yu Liu, Zhen Zhang, Guo-Wei Chen, Yan-Chun Wang, Guo Yuan, Feng-Ming Xie, Jian-Xin Tang, Yan-Qing Li","doi":"10.1016/j.matt.2025.102188","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102188","url":null,"abstract":"Solution processing has emerged as an up-and-coming technique for the scalable manufacture of organic light-emitting diodes (OLEDs) owing to the material savings and compatibility with large-area manufacturing. Nonetheless, the development of solution-processable pure-blue emitters that exhibit optimal color purity and electroluminescent efficiency presents a significant challenge in pursuing high-performance solution-processed devices. Here, we demonstrate a molecular configuration strategy to create solution-processable multiresonance thermally activated delayed fluorescence (MR-TADF) emitters. The methodology encompasses the construction of a “multiresonance-donor-multiresonance (MR-D-MR)” framework that features hybrid short/long-range charge transfer excitation characteristics. The proof-of-concept emitter demonstrates considerable rigidity and reduced vibronic progression, resulting in pure-blue narrowband emission at 474 nm. Furthermore, it possesses a large oscillator strength and significant spin-orbit couplings, facilitating rapid exciton dynamics. These advantageous properties enable the emitter to achieve a record-high electroluminescent efficiency of 35.1% for sensitizer-free solution-processed OLEDs. The outstanding electroluminescent outcomes underscore the efficacy of our molecular construction strategy.","PeriodicalId":388,"journal":{"name":"Matter","volume":"10 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-21DOI: 10.1016/j.matt.2025.102166
Xiege Huang, Luoqi Wu, Mingyuan Hu, Xiaobin Feng, Pengcheng Zhai, Wenjuan Li, Bo Duan, Jiaqing He, Guodong Li, Qingjie Zhang, William A. Goddard
{"title":"The staggered-layer induced elasticity strengthening mechanism in flexible Bi2Te3","authors":"Xiege Huang, Luoqi Wu, Mingyuan Hu, Xiaobin Feng, Pengcheng Zhai, Wenjuan Li, Bo Duan, Jiaqing He, Guodong Li, Qingjie Zhang, William A. Goddard","doi":"10.1016/j.matt.2025.102166","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102166","url":null,"abstract":"Wearable flexible devices require the development of thermoelectric (TE) materials with high strength, excellent elastic bendability, and superior ductility. Here we report a staggered-layer strategy that overcomes the strength-flexibility dilemma. Our findings indicate that the newly formed strong Bi–Bi covalent bond between the staggered layer leads to an average 40% increase in the bond energy of the van der Waals Te–Te bond. A large Poisson’s ratio leads to a high maximum linear elastic strain (<span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><msubsup is=\"true\"><mi is=\"true\">&#x3B5;</mi><mi is=\"true\">E</mi><mi mathvariant=\"italic\" is=\"true\">max</mi></msubsup></mrow></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.663ex\" role=\"img\" style=\"vertical-align: -0.928ex;\" viewbox=\"0 -747.2 1966.9 1146.6\" width=\"4.568ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMATHI-3B5\"></use></g><g is=\"true\" transform=\"translate(466,352)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMATHI-6D\"></use><use transform=\"scale(0.707)\" x=\"878\" xlink:href=\"#MJMATHI-61\" y=\"0\"></use><use transform=\"scale(0.707)\" x=\"1408\" xlink:href=\"#MJMATHI-78\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(466,-318)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMATHI-45\"></use></g></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><msubsup is=\"true\"><mi is=\"true\">ε</mi><mi is=\"true\">E</mi><mi is=\"true\" mathvariant=\"italic\">max</mi></msubsup></mrow></math></span></span><script type=\"math/mml\"><math><mrow is=\"true\"><msubsup is=\"true\"><mi is=\"true\">ε</mi><mi is=\"true\">E</mi><mi mathvariant=\"italic\" is=\"true\">max</mi></msubsup></mrow></math></script></span>), enhancing shear strength by 83.3%, which is consistent with a 92.2% increase in micro-pillar compressive strength. The narrow stiffness gap and bond energy gap facilitate the coordinated deformation that maintains sustained linear elasticity during compression. Moreover, the low BFCs of the Te–Te and Te–Bi bonds (0.72 eV/Å<sup>2</sup> and 3.85 eV/Å<sup>2</sup>) contribute to the experimentally observed bending flexibility. This staggered-layer-induced elasticity strengthening mechanism offers a promising strategy for the rational design of highly reliable wearable TE devices.","PeriodicalId":388,"journal":{"name":"Matter","volume":"1 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144104161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-20DOI: 10.1016/j.matt.2025.102159
Yuhe Shen, Ruizhe Xing, Xiaojian Xu, Yuefei Wang, Renliang Huang, Rongxin Su, Michael D. Dickey, Wei Qi, Jie Kong
{"title":"Regenerable liquid metal nanozymes enable pH-regulated multi-enzyme mimicking","authors":"Yuhe Shen, Ruizhe Xing, Xiaojian Xu, Yuefei Wang, Renliang Huang, Rongxin Su, Michael D. Dickey, Wei Qi, Jie Kong","doi":"10.1016/j.matt.2025.102159","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102159","url":null,"abstract":"Nanozymes are nanomaterials with enzyme-like characteristics that are found in the fields of catalysis, biomedicine, and environmental science. In this work, we present a core-shell liquid metal nanozyme (MnO<sub><em>x</em></sub>@EGaIn) that shows pH-regulated multi-enzyme mimicking capabilities. By harnessing the amphoteric nature of liquid metal surface oxides, these liquid metal nanozymes demonstrate tunable reaction possibilities under various pH conditions (4.0–9.5). This property enables highly efficient enzyme-mimicking activities, including oxidase (OXD, specific activity, SA of 539 U/g), catalase (CAT, SA of 2621 U/g), and superoxide dismutase (SOD, SA of 2391 U/g). Moreover, these liquid metal nanozymes showed notable regenerability, allowing them to be recycled and re-synthesized from their raw material forms. This discovery not only broadens the range of materials and applications for nanozymes but also equips them with the ability to perform multiple enzyme functions while remaining regenerative, providing valuable insights for the design of next-generation enzyme-mimicking materials.","PeriodicalId":388,"journal":{"name":"Matter","volume":"55 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144097641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-20DOI: 10.1016/j.matt.2025.102164
Ziyan Han, Xiankai Fan, Luxiao Zhang, Kun Wang, Jie Wang, Hao Li, Guangmei Jiang, Wenhui Li, Lipeng Wang, Yuzhu Ma, Kun Lan, Bing Ma, Wei Zhang, Yujuan Zhao, Jun Li, Wei Li, Dongliang Chao, Dongyuan Zhao, Zaiwang Zhao
{"title":"Regular mesoporous nanosheets with mesoscopic high surface pore curvature and accelerated ion-transport channels","authors":"Ziyan Han, Xiankai Fan, Luxiao Zhang, Kun Wang, Jie Wang, Hao Li, Guangmei Jiang, Wenhui Li, Lipeng Wang, Yuzhu Ma, Kun Lan, Bing Ma, Wei Zhang, Yujuan Zhao, Jun Li, Wei Li, Dongliang Chao, Dongyuan Zhao, Zaiwang Zhao","doi":"10.1016/j.matt.2025.102164","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102164","url":null,"abstract":"Constructing two-dimensional (2D) porous heterogeneous superstructures with a high surface pore curvature at the mesoscopic scale remains a major challenge in materials science. Herein, we report a stable-monomicelle-assisted interface assembly method to prepare unique 2D hierarchical mesoporous heterogeneous carbon/MXene nanosheets with mesoscopic high surface pore curvature. In this hierarchical structure, MXene sheet is located at the center of the sandwich structure, and an ultrathin monolayer of uniform spherical mesopores is regularly arranged on both sides of the MXene nanosheets. Importantly, this interconnected 2D porous heterogeneous nanosheet endows a high surface pore curvature and abundant accessible surface area. In addition, the size of mesopores and the thickness of carbon layers are precisely controllable. Finally, we demonstrate that the 2D mesoporous heterogeneous carbon superstructure, which features channels for accelerated zinc-ion transport, exhibits a specific capacity of up to 158 mAh g<sup>−1</sup> and improved rate performance.","PeriodicalId":388,"journal":{"name":"Matter","volume":"4 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144097642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-20DOI: 10.1016/j.matt.2025.102157
Yan Luo, Chun Huang, Xiaocang Han, Dawei Zhou, Zishen Wang, Chao Zhu, Jingsi Qiao, Xiaoxu Zhao
{"title":"Metallic monolayer iodinene sheets","authors":"Yan Luo, Chun Huang, Xiaocang Han, Dawei Zhou, Zishen Wang, Chao Zhu, Jingsi Qiao, Xiaoxu Zhao","doi":"10.1016/j.matt.2025.102157","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102157","url":null,"abstract":"Two-dimensional (2D) Xenens with varying degrees of buckling and tunable electronic structures are promising platforms for fundamental research and practical applications. So far, great efforts have been devoted to synthesizing new Xenes to expand the 2D family, particularly 2D iodine (iodinene), which holds promise for topological electronics. However, the unique physicochemical characteristics of iodine—such as low sublimation temperatures, high electronegativity, and chemical instability—have posed challenges for its reliable synthesis. Herein, we developed a template-mediated epitaxial approach to synthesize monolayer iodinene, which adopts a silicene-like buckled structure, via a mild solution-phase method. Iodinene crystallized on 2D templates, revealing a commensurate superlattice, highlighting that weak interfacial interactions and charge transfer play a significant role in stabilizing the buckled iodinene. The monolayer iodinene, exhibiting anomalous electronic character and flat band as suggested by the theoretical calculations, expands the family of 2D metallic Xenes and paves the way for researching non-trivial states in metastable monolayer Xenes.","PeriodicalId":388,"journal":{"name":"Matter","volume":"21 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144097520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultra-strong skin-core polymer aerogel fibers via wet-freeze spinning","authors":"Tiantian Xue, Jingyuan Tang, Chang Liu, Longsheng Zhang, Chao Zhang, Wei Fan, T.X. Liu","doi":"10.1016/j.matt.2025.102155","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102155","url":null,"abstract":"Aerogel fibers, as synthetic fibers with a three-dimensional (3D) porous structure, outperform traditional fibers in thermal management. However, they still face the challenge of balancing mechanical properties and thermal insulation to fully realize their potential. Here, we report a wet-freeze spinning technique for the continuous, large-scale preparation of dense skin-porous core-structured polyimide aerogel fibers. The unique multiscale structural design, which includes a highly oriented dense skin layer to withstand load stresses and a porous core to impede heat transfer, achieves exceptionally high strength and low thermal conductivity. The resulting robust skin-core polyimide (SCPI) aerogel fibers exhibit ultrahigh specific strength up to 775.8 MPa cm<sup>3</sup> g<sup>−1</sup>, much higher than previously reported aerogel fibers. Moreover, the obtained aerogel fabrics demonstrate excellent thermal insulation properties (30.4 mW m<sup>−1</sup> K<sup>−1</sup>) under long-term thermal shock. This strategy offers a universal and continuous way to prepare high-strength aerogel fibers and is crucial for promoting the fiber industry.","PeriodicalId":388,"journal":{"name":"Matter","volume":"54 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MatterPub Date : 2025-05-16DOI: 10.1016/j.matt.2025.102163
Andrew Martin, Sebastian Zaatini, Dhanush U. Jamadgni, Martin Thuo
{"title":"Influence of interface asymmetry on phase partitioning in metal alloys","authors":"Andrew Martin, Sebastian Zaatini, Dhanush U. Jamadgni, Martin Thuo","doi":"10.1016/j.matt.2025.102163","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102163","url":null,"abstract":"Order and disorder in fragile liquids like undercooled liquid metals are widely explored; however, the effects of <em>in situ</em> structuring, speciation, or partitioning on associated phase change are poorly understood due to challenges in understanding partitioning or speciation in such systems. Here, we demonstrated that migration away from a thermal dynamic invariant point (eutectic) leads to partitioning in metal alloys, resulting in differentiable phase change events. Evolution in heat capacity, enthalpy, and entropy of non-eutectic mixtures was analyzed. Asymmetry in enthalpy dissipation peak during phase transition further confirms this partitioning-driven divergence in entropy change. We infer that, when a liquid metal is not in equilibrium, <em>in situ</em> partitioning, speciation, and segregation can occur, generating new interfaces that abet the undercooling and retention of the liquidous state. This work highlights the role of opposing interfacial stresses and entropy changes in generation of microsystems in non-equilibrium mixtures.","PeriodicalId":388,"journal":{"name":"Matter","volume":"127 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}