Article
Chemistry, Physical
Jiajia Zha, Zhen Yuan, Zhan Zhou, Yang Li, Jiangqi Zhao, Zhiyuan Zeng, Liang Zhen, Huiling Tai, Chaoliang Tan, Hua Zhang
Summary: A simple and fast method for solvent-mediated self-assembly of ultrathin 2D nanosheets into 1D nanofibers and nanorings is reported, enabling the fabrication of channel materials for electronic gas sensors. This assembly strategy shows great potential for assembling other ultrathin 2D nanomaterials into 1D nanostructures for various applications.
Article
Chemistry, Multidisciplinary
Sudipta Mondal, Pavel Rehak, Nandita Ghosh, Petr Kral, Ehud Gazit
Summary: This study demonstrates the formation of high persistence length one-dimensional arrays templated by self-assembling peptide fibers with asymmetrically distributed charged surfaces. The asymmetric nature of the peptide fibers allows charge-dependent deposition of nanoparticles, resulting in the formation of 1D arrays with higher persistence lengths.
Article
Nanoscience & Nanotechnology
Calle Preger, Martin Josefsson, Rasmus Westerstrom, Maria E. Messing
Summary: Directed self-assembly of charged magnetic aerosolized nanoparticles with tunable size and composition has been demonstrated using combined electric and magnetic fields, resulting in a variety of nanostructures. The magnetization of nanoparticles and the orientation of external magnetic fields play key roles in governing the self-assembly process. These results highlight the potential of aerosol deposition in a combined electric and magnetic field for tailored bottom-up fabrication of nanostructures.
Article
Engineering, Chemical
Xian Wu, Jenifer Gomez-Pastora, Maciej Zborowski, Jeffrey Chalmers
Summary: Superparamagnetic iron oxide nanoparticles (SPIONs) are promising materials for applications in biomedical and chemical engineering, with magnetic separation being a key technology for their isolation. This study investigates the magnetic separation of 5-30 nm SPIONs by applying fields and gradients perpendicular to gravity, revealing the forces of magnetism, particle agglomeration, and gravity affecting the separation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
J. Mohapatra, J. Elkins, M. Xing, D. Guragain, Sanjay R. Mishra, J. Ping Liu
Summary: Self-assembly of nanoparticles can lead to the formation of new materials with desired physical properties. In this study, composition-modulated bimagnetic nanoparticles were used to produce ordered structures with enhanced magnetic properties, such as anisotropy and remanent magnetization. The presence of magnetic fields during assembly played a key role in the formation of oriented nanoparticle chains in superlattice structures.
Article
Multidisciplinary Sciences
Samar A. Alsudir, Alhanouf Alharbi, Abdulaziz M. Almalik, Ali H. Alhasan
Summary: It was discovered that micellar ink of lipids could be transformed into various secondary structures through patterning-mediated self-assembly at nanoconfined interfaces, forming cochleates, discotic liquid crystals, and a novel supramolecular output named "nanopalms".
Article
Chemistry, Multidisciplinary
Fan Yang, Shunsheng Ye, Wenhao Dong, Di Zheng, Yifan Xia, Chenglin Yi, Jing Tao, Chang Sun, Lei Zhang, Lu Wang, QianYun Chen, Yazi Wang, Zhihong Nie
Summary: This study presents a facile laser-scanning-based method to fabricate quasi-3D patterned arrays of plasmonic nanoparticle dimers with controlled orientation. The approach is highly flexible in forming high-resolution patterns of plasmonic dimers of different sizes and shapes.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jue Yin, Mo Xie, Junke Wang, Meirong Cui, Dan Zhu, Shao Su, Chunhai Fan, Jie Chao, Qian Li, Lianhui Wang
Summary: In this work, the authors report a simple and versatile one-pot strategy to fabricate DNA architectures with the assistance of spherical gold nanoparticles modified with thiolated oligonucleotide strands. The desired architectures are formed via the stochastic co-assembly of different modules.
Article
Chemistry, Multidisciplinary
Andreas Peil, Ling Xin, Steffen Both, Luyao Shen, Yonggang Ke, Thomas Weiss, Pengfei Zhan, Na Liu
Summary: Researchers have successfully demonstrated the DNA assembly of a rotary nanodevice that mimics the mechanism of bacterial flagellar motor. This study provides new insights for designing and building artificial nanomachinery.
Article
Chemistry, Multidisciplinary
Jeong Eun Park, Sei Jin Park, Augustine Urbas, Zahyun Ku, Jeong Jae Wie
Summary: In this study, a stepwise collective magnetic self-assembly method using periodic polymeric micropillar arrays is reported. The magnetic polarities of the micropillars are arranged by an external magnetic field, and long-range connectivity is achieved by increasing the magnetic flux density. The effects of geometric shape and spatial selectivity on magnetic self-assembly are also investigated.
Article
Chemistry, Physical
Yuting Liang, Di Xiang, Ying Hou, Guangshe Li, Shouhua Feng, Ming Yang
Summary: The research shows that size is a common structural driving force for controlling hierarchical assembly of inorganic nanoparticles into anisotropic superstructures. The increase in size creates an effective kinetic barrier at different attachment sites, switching the assembly pathway from thermodynamically preferred 3D to kinetically favored 1D. Furthermore, the size-encoded hierarchical assembly is accompanied by ligand-controlled Oswald ripening process, resulting in the variation of hierarchical patterns from chains to tubules.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Xu Zhang, Zhiqing Liu, Xingchen Jin, Fengrui Liu, Xinlei Ma, Ning Qu, Wang Lu, Yuhan Tian, Qiang Zhang
Summary: Controllable modulation strategies for metal-organic frameworks (MOFs) with one-dimensional (1D) and two-dimensional (2D) structures are reported. The ratio of Ni2+ and pyromellitic acid linker can be adjusted to facilely prepare 1D, 1D/2D, and 2D Ni-MOFs. Low-dimensional structures can shorten transmission distance, while high Ni2+ content in MOFs provides abundant active sites for oxidation-reduction reactions. The optimized Ni2+/pyromellitic acid ratio in the 2D structure Ni-MOF shows a good performance of 1036 F g-1 at a current density of 1 A g-1 and a comparable rate performance of 62% at 20 A g-1. This study offers a facile design to control the structure of MOFs for electrochemical energy storage.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yue Wu, Yanqiong Yang, Yan Zhang, Liwei Dai, Wenhao Dong, Huibin He, Hao Li, Zhihong Nie, Yutao Sang
Summary: This study demonstrates a photo-induced self-assembly process of binary nanoparticles with complementary copolymer ligands, leading to the formation of high-yield clusters or linear structures of colloidal molecules. By varying the irradiation duration and mixing order, precise control of different structures can be achieved, offering various applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Shuo Yang, Wenyan Liu, Yuwei Zhang, Risheng Wang
Summary: In this study, a new strategy utilizing DNA origami tiles and cation-controlled surface diffusion was employed to assemble gold nanorods into 1D and 2D arrays, with a novel pattern transfer method introduced for further manipulation. The results demonstrate the potential application of this approach in constructing complex superstructures with high yield and minor structural damage.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Physical
Rituraj Borah, A. G. Karthick Raj, Antony Charles Minja, Sammy W. Verbruggen
Summary: The synthesis and self-assembly of functional nanoparticles have attracted significant attention in recent years. The self-organization of nanoparticles into ordered structures is important for creating functional interfaces and enhancing their properties. This review provides an overview of recent developments in nanoparticle self-assembly and discusses their applications. Different techniques for obtaining these nanostructures and their impact on performance are also discussed.
Article
Materials Science, Multidisciplinary
Valery Shevchenko, Valery Bliznyuk, Mariana Gumenna, Nina Klimenko, Alexandr Stryutsky, Junlei Wang, Christian Binek, Margarita Chernyakova, Konstantin Belikov
Summary: This study reports the synthesis, structural organization, thermal, and magnetic properties of coordination polymers based on amphiphilic oligomeric silsesquioxanes and transition metal ions. The introduction of metals decreases the temperature of a specific endothermic transition while not affecting the melting transition peak of crystalline domains of aliphatic chains.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Ather Mahmood, Will Echtenkamp, Mike Street, Jun-Lei Wang, Shi Cao, Takashi Komesu, Peter A. Dowben, Pratyush Buragohain, Haidong Lu, Alexei Gruverman, Arun Parthasarathy, Shaloo Rakheja, Christian Binek
Summary: The research demonstrates the voltage control and nonvolatile Neel vector rotation of antiferromagnetic states without an applied magnetic field at high temperatures. The multifunctional material B:Cr2O3 shows potential for energy efficient nonvolatile CMOS compatible memory applications.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Keke He, Bilal Barut, Shenchu Yin, Michael D. Randle, Ripudaman Dixit, Nargess Arabchigavkani, Jubin Nathawat, Ather Mahmood, Will Echtenkamp, Christian Binek, Peter A. Dowben, Jonathan P. Bird
Summary: Evidence is provided for robust spin-dependent transport in monolayer graphene deposited on the surface of the antiferromagnetic/magneto-electric oxide chromia. The measurements reveal a strong signal that is present even at zero external magnetic field and remains visible at high temperatures. These results suggest that graphene-on-chromia heterostructures have great potential for spintronic devices.
ADVANCED MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Anthony T. Bollinger, Xi He, Xiaotao Xu, Xiaoyan Shi, Ivan Bozovic
Summary: This article presents a method for producing tunnel junctions from cuprate thin films, utilizing microfabrication processing and the atomically precise interfaces provided by the ALL-MBE synthesis technique. The method is suitable for a wide range of junction dimensions and materials, allowing for more complex designs.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2022)
Article
Nanoscience & Nanotechnology
R. Skomski, B. Balasubramanian, A. Ullah, C. Binek, D. J. Sellmyer
Summary: Magnetic flux densities and field intensities in thin films are investigated in the context of Berry phase and topological Hall effect. The topological Hall effect is known to arise from a new type of magnetic field generated by the Berry phase of conduction electrons, despite Maxwell's equations predicting a zero perpendicular component of the field. This paradox is resolved by treating the electrons as point-like objects in Lorentz cavities. However, structural and magnetic inhomogeneities significantly modify the Lorentz-hole picture.
Article
Physics, Multidisciplinary
Y. Shen, J. Sears, G. Fabbris, J. Li, J. Pelliciari, I Jarrige, Xi He, I Bozovic, M. Mitrano, Junjie Zhang, J. F. Mitchell, A. S. Botana, V Bisogni, M. R. Norman, S. Johnston, M. P. M. Dean
Summary: The essential electronic properties of low valence nickelates have been debated, whether they have appreciable oxygen charge-transfer character or are in a distinct Mott-Hubbard regime. Using O K-edge resonant inelastic x-ray scattering (RIXS), this study resolved the question and found that the low valence nickelate possesses mixed charge-transfer-Mott-Hubbard character. Despite a similar Coulomb repulsion, the transition-metal-oxygen hopping is larger in the nickelate, leading to a significant superexchange interaction and hole occupation of ligand O orbitals.
Article
Nanoscience & Nanotechnology
Xiaotao Xu, Xi He, Xiaoyan Shi, Ivan Bozovic
Summary: This article introduces the method and process of synthesizing high-temperature superconductor films using atomic layer-by-layer molecular beam epitaxy (ALL-MBE), and describes in detail the steps for synthesizing La2-xSrxCuO4 (LSCO) films. The research group has synthesized over three thousand LSCO films in the past two decades and characterized them. This report is of great significance to the synthesis method of single-crystal LSCO films for basic research and high-temperature superconducting electronic applications.
Article
Physics, Condensed Matter
Archit Dhingra, Xuedong Hu, Mario F. Borunda, Joseph F. Johnson, Christian Binek, Jonathan Bird, Alpha T. N'Diaye, Jean-Pascal Sutter, Emilie Delahaye, Eric D. Switzer, Enrique del Barco, Talat S. Rahman, Peter A. Dowben
Summary: This article discusses the application of quantum information science without entangled states, focusing on devices with continuous readout. It proposes a solid-state version of the Mach-Zehnder interferometer as an alternative to qubits, where local moments and spin polarization are used instead of light polarization. The article also provides insights into the mathematical principles of quantum information processes involving molecular systems with large magnetic anisotropy. Furthermore, it explores novel approaches to address scalability issues in quantum devices.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Physics, Applied
Kaushik Sarkar, Surabhi Shaji, Suchit Sarin, Jeffrey E. Shield, Christian Binek, Dhananjay Kumar
Summary: A magnetocaloric effect with sizable isothermal entropy change is reported for a rare earth-free superparamagnetic nanoparticle system. The system is composed of Fe-TiN heterostructure and exhibits the effect over a broad range of temperatures above the blocking temperature. The quantitative information about the effect was obtained using Maxwell relation and high-resolution imaging techniques.
JOURNAL OF APPLIED PHYSICS
(2022)
Correction
Chemistry, Multidisciplinary
Adam Erickson, Syed Qamar Abbas Shah, Ather Mahmood, Ilja Fescenko, Rupak Timalsina, Christian Binek, Abdelghani Laraoui
Article
Chemistry, Multidisciplinary
Adam Erickson, Syed Qamar Abbas Shah, Ather Mahmood, Ilja Fescenko, Rupak Timalsina, Christian Binek, Abdelghani Laraoui
Summary: We directly imaged the boundary magnetization associated with antiferromagnetic domains in magnetoelectric epitaxial Cr2O3 thin films using diamond nitrogen vacancy microscopy. We found a correlation between magnetic domain size and structural grain size, which is related to the domain formation process. Lifting the degeneracy of the two otherwise degenerate 180 degrees domains is achievable with a magnetic field alone.
Article
Materials Science, Multidisciplinary
A. Legros, K. W. Post, Prashant Chauhan, D. G. Rickel, Xi He, Xiaotao Xu, Xiaoyan Shi, Ivan Bozovic, S. A. Crooker, N. P. Armitage
Summary: The recent observation of cyclotron resonance in optimally doped La2-xSrxCuO4 using time-domain THz spectroscopy in high magnetic field has opened up new possibilities for the study of cuprate superconductors. In this study, the carrier mass of the hole-doped cuprate La2-xSrxCuO4 was measured across a range of dopings. The results showed a systematic increase of the carrier mass with doping, which is in contrast with the masses extracted from the heat capacity.
Article
Materials Science, Multidisciplinary
Fahad Mahmood, David Ingram, Xi He, J. A. Clayhold, Ivan Bozovic, N. P. Armitage
Summary: Using time-domain terahertz spectroscopy and mutual inductance measurements, this study investigates the low-energy electrodynamic response of overdoped La2-xSrxCuO4 films exposed to ion irradiation. The results show that the transport scattering rate is directly proportional to the radiation dose at all temperatures, and the relationship between Tc, the superfluid density, and the scattering rates in the superconducting state is different from the predictions based on existing theories.
Article
Materials Science, Multidisciplinary
K. W. Post, A. Legros, D. G. Rickel, J. Singleton, R. D. McDonald, Xi He, I Bozovic, X. Xu, X. Shi, N. P. Armitage, S. A. Crooker
Summary: Using time-domain terahertz spectroscopy in pulsed magnetic fields up to 31 T, the study measured the terahertz optical conductivity in an optimally doped thin film of the high-temperature superconducting cuprate La1.84Sr0.16CuO4, revealing systematic changes in the circularly polarized complex optical conductivity consistent with cyclotron absorption of p-type charge carriers. This opens up opportunities for investigating the influence of electron-electron interactions on carrier masses in cuprate superconductors.
Article
Materials Science, Multidisciplinary
Chloe Herrera, Jacob Franklin, Ivan Bozovic, Xi He, Ilya Sochnikov
Summary: Recent advancements in film synthesis methods have allowed for the study of extremely overdoped La2-xSrxCuO4, revealing surprising behavior in superfluid density with doping and temperature variations. The use of local scanning superconducting quantum interference device (SQUID) measurements on a smaller scale than the Pearl penetration depth Lambda(P) has provided uniform landscapes of susceptibility and overall agreement with bulk measurements, contributing insights into how high-temperature superconductivity disappears in the overdoped side of the cuprate phase diagram.
