Pressure-Stabilized MnSb2_2 with Complex Incommensurate Magnetic Order

该研究通过高压合成稳定了亚稳态的白铁矿型 MnSb2_2单晶,并揭示其具有随温度演变的复杂非共线磁序及高达 2 μB\mu_B的有序磁矩,确立了其作为探索非常规磁性(包括潜在自旋翻转铁磁性)的理想平台。

Mingyu Xu, Matt Boswell, Qing-Ping Din, Peng Cheng, Aashish Sapkota, Qiang Zhang, Danielle Yahne, Sergey. L. Bud'ko, Yuji Furukawa, Paul. C. Canfield, Raquel A. Ribeiro, Weiwei XieWed, 11 Ma🔬 cond-mat.mtrl-sci

Pressure-Induced Structural and Magnetic Evolution in Layered Antiferromagnet YbMn2_2Sb2_2

该研究通过高压实验与理论计算揭示了层状反铁磁半导体 YbMn2_2Sb2_2在约 3.5 GPa 下发生结构相变并伴随半导体 - 金属转变,同时压力诱导其形成短程自旋对并演化为长程反铁磁有序,从而稳定了由结构调控和竞争交换相互作用主导的非传统磁态。

Mingyu Xu, Matt Boswell, Aya Rutherford, Cheng Peng, Ying Zhou, Shuyang Wang, Zhaorong Yang, Antonio M. dos Santos, Haidong Zhou, Weiwei XieWed, 11 Ma🔬 cond-mat.mtrl-sci

Application of dual-tree complex wavelet transform for spectra background reduction

本文提出了一种基于双树复小波变换(DTCWT)的通用光谱背景去除方法,该方法克服了传统拟合或滤波技术的局限性,能够更有效地从 X 射线粉末衍射和Ga2O3Ga_{2}O_{3}晶体光致发光等实验数据中提取并增强有效光谱信息,同时保持信号完整性并减少处理偏差。

Kazimierz Skrobas, Kamila Stefanska-Skrobas, Cyprian Mieszczynski, Renata RatajczakWed, 11 Ma🔬 cond-mat.mtrl-sci

AI-driven Inverse Design of Complex Oxide Thin Films for Semiconductor Devices

该论文提出了名为 IDEAL 的逆向设计平台,通过整合生成式扩散模型、机器学习势函数与原子层沉积技术,成功预测并实验验证了 Hf-Zr-O 复杂氧化物薄膜中半导体相关介电材料的最佳组分窗口,从而实现了从理论设计到非平衡态薄膜精准合成的闭环。

Bonwook Gu, Trinh Ngoc Le, Wonjoong Kim, Zunair Masroor, Han-Bo-Ram LeeWed, 11 Ma🔬 cond-mat.mtrl-sci

Resolving Transient Electron-Phonon Coupling with Time-Resolved Spontaneous Raman Spectroscopy

该研究开发了一种基于时间相关单光子计数的时间分辨自发拉曼光谱技术,通过利用调制连续波探针实现亚波数光谱分辨率和数百皮秒时间分辨率,成功在轻掺硼硅中解析了瞬态电子 - 声子耦合参数及其与载流子复合的直接关联。

Guy Reuveni, Maya Levy Greenberg, Matan Menahem, Olle Hellman, Omer YaffeWed, 11 Ma🔬 cond-mat.mtrl-sci

Materials Acceleration Platform for Electrochemistry (MAP-E): a Platform for Autonomous Electrochemistry

本文介绍了一种名为 MAP-E 的自主电化学加速平台,该平台通过集成机器人液体处理与多通道电位控制,实现了无需人工干预的高通量腐蚀测试,并成功利用不确定性驱动策略自主构建了 304 不锈钢的 pH-氯离子稳定性图,从而加速了材料发现与环境耐久性评估。

Daniel Persaud, Mike Werezak, Mark Xu, Melyne Zhou, Frank Benkel, Xin Pang, Vahid Attari, Brian DeCost, Ashley Dale, Nicholas Senior, Gabriel Birsan, Jason Hattrick-SimpersWed, 11 Ma🔬 cond-mat.mtrl-sci

A systematic study of single molecule metallocenes with 4d and 3d transition metal atoms

该研究利用第一性原理密度泛函理论系统研究了含 3d 和 4d 过渡金属的单分子金属茂,发现其磁各向异性主要取决于 d 轨道的排列而非 d 电子数量,其中 Mo 和 Rh 基 4d 金属茂展现出约 20 K 的最大各向异性,且阳离子态下 Mo 金属茂的各向异性可进一步提升至 60 K,而 3d 金属茂的各向异性则普遍低于 10 K。

Daniela Herrera-Molina, Kushantha P. K. Withanage, Jesus N. Pedroza-Montero, Pardeep Kaur, Mark. R. Pederson, M. F. IslamWed, 11 Ma🔬 cond-mat.mtrl-sci

Direct Laser Writing of Ferromagnetic Nickel Utilizing the Principle of Sensitized Triplet-Triplet Annihilation Upconversion

该研究利用敏化三重态 - 三重态湮灭上转换原理,结合原位光化学脱氧与镍离子光还原过程,在环境条件下成功实现了铁磁性镍微结构的直写制造,为紧凑型三维架构中的传感与数据存储提供了新途径。

Kristin E. J. Kühl (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Katharina Rediger (Department of Chemistry, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Nikhita Khera (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Ephraim Spindler (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Gereon Niedner-Schatteburg (Department of Chemistry, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Elke Neu (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Mathias Weiler (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany), Georg von Freymann (Department of Physics and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, Kaiserslautern, Germany, Fraunhofer Institute for Industrial Mathematics ITWM, Kaiserslautern, Germany)Wed, 11 Ma🔬 cond-mat.mtrl-sci

Nanoscale imaging of spin textures with locally varying altermagnetic response in α\alpha-Fe2_2O3_3

该研究利用纳米光谱 X 射线磁圆二色性技术,在α\alpha-Fe2_2O3_3中成功观测到随奈尔矢量取向变化的局域反铁磁响应,揭示了莫林相变下的信号开关效应以及畴壁和室温下反铁磁子(meron)自旋织构中的独特纳米尺度信号特征。

R. Yamamoto, S. Mayr, A. Hariki, S. Finizio, K. Sakurai, E. Weschke, K. Litzius, M. T. Birch, L. A. Turnbull, E. Zhakina, M. Di Pietro Martínez, J. Reuteler, F. Schulz, M. Weigand, J. Raabe, G. Schütz, S. S. P. K. Arekapudi, O. Hellwig, W. H. Campos, L. Šmejkal, J. Kuneš, C. Donnelly, S. WintzWed, 11 Ma🔬 cond-mat.mtrl-sci

Chirality-dependent spin polarization in metals: linear and quadratic responses

该论文通过理论分析揭示了具有结构手性的金属中,由局域注入电流诱导的自旋极化在体相线性响应和界面二次响应中的不同表现,阐明了二次响应中自旋极化符号与体自旋流预期相反的现象源于二次响应中出现的偶极子状电荷分布,从而成功复现了手性与自旋极化方向之间的实验关联。

Kosuke Yoshimi, Yusuke Kato, Yuta Suzuki, Shuntaro Sumita, Takuro Sato, Hiroshi M. Yamamoto, Yoshihiko Togawa, Hiroaki Kusunose, Jun-ichiro KishineTue, 10 Ma🔬 cond-mat.mes-hall

Wear in multiple network elastomers arises from the continuous accumulation of molecular damage rather than microcrack growth

该研究通过力化学方法揭示,多网络弹性体的磨损并非源于微裂纹扩展,而是由粗糙接触点引发的亚表面应力活化键断裂所导致的分子损伤持续累积,进而形成降解黏性层并最终造成材料剥落。

Ombeline Taisne, Julien Caillard, Côme Thillaye du Boullay, Marc Couty, Costantino Creton, Jean ComtetTue, 10 Ma🔬 cond-mat.mtrl-sci