Article
Chemistry, Multidisciplinary
Andrew C. Madison, John S. Villarrubia, Kuo-Tang Liao, Craig R. Copeland, Joshua Schumacher, Kerry Siebein, B. Robert Ilic, J. Alexander Liddle, Samuel M. Stavis
Summary: This article focuses on the study of the fundamental tradespace of resolution and throughput in focused-ion-beam machining. By using chromia and silica as materials, complex test structures were fabricated and characterized to explore the response of the bilayer to a focused beam of gallium cations. The results showed a super-resolution factor of up to 6+/-2 and improvements to volume throughput of at least factors of 42+/-2.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Oleksandr Buchnev, James A. Grant-Jacob, Robert W. Eason, Nikolay I. Zheludev, Ben Mills, Kevin F. MacDonald
Summary: Researchers have developed a deep learning method based on prior experience to predict the postfabrication appearance of structures manufactured by focused ion beam (FIB) milling, which can expedite the optimization process and improve reproducibility in FIB processing.
Article
Materials Science, Multidisciplinary
Mason Adshead, Maddison Coke, Gianfranco Aresta, Allen Bellew, Matija Lagator, Kexue Li, Yi Cui, Rongsheng Cai, Abdulwahab Almutawa, Sarah J. Haigh, Katie Moore, Nicholas Lockyer, Christopher M. Gourlay, Richard J. Curry
Summary: A platform called P-NAME for nanoscale advanced materials engineering is introduced, which includes a high-resolution focused ion beam system, a scanning electron microscope, and a secondary electron detector. The system demonstrates the capability of isotopic mass-resolution for various ion species that are important for nanomaterials engineering and nanofunctionalization. The performance of the system is validated using secondary ion mass spectrometry, and other capabilities such as sub-10 nm ion beam imaging resolution, direct-write ion beam doping, and nanoscale ion lithography are also showcased.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Deying Xia, Ying-Bing Jiang, John Notte, Doug Runt
Summary: This study compares the usage of a neon focused ion beam with the traditional gallium focused ion beam for milling GaAs material, finding that neon FIB produces less undesired artifacts and subsurface damage at lower energies. Additionally, neon FIB can create trenches as small as 20 nm wide with high fidelity and minimal damage.
APPLIED SURFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Nikita Shandyba, Sergey Balakirev, Vladislav Sharov, Natalia Chernenko, Danil Kirichenko, Maxim Solodovnik
Summary: This paper presents experimental studies on the effect of Ga-focused ion beam (FIB) surface modification on Si(111) on the growth of GaAs nanowires (NWs). The authors observed three different modes of surface features on the GaAs NW growth based on the dose of Ga ions during surface modification. At low doses, NW growth is suppressed, while high-density GaAs NW arrays with a high fraction of vertically aligned nanowires are achieved at medium doses. At high doses, a continuous polycrystalline base with misoriented and thin GaAs NWs is formed. The interaction between the implanted Ga ions and the surface plays a key role in the modification and growth processes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Yanran Liu, Yuanyuan Qu, Yue Liu, Hang Yin, Jinglun Liu, Yang Tan, Feng Chen
Summary: This study demonstrates the construction of lateral diodes on graphene-based heterostructures using focused ion-beam writing, achieving rectification and current regulating functions. The introduction of Se-defects endows the heterostructure with unique electronic properties, enabling the construction of diodes with comparable performance. Additionally, AND and OR logic gates were directly inscribed on the heterostructure to showcase practical applications in digital logic electronics.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Deying Xia, John Notte
Summary: 3D nanostructures are crucial for creating custom devices with unique functionalities. This study presents a method using ion beams to induce bending and folding in membranes, resulting in the formation of nano-kirigamis with controlled angles and directions. The approach involves milling 2D patterns into the membrane using helium or neon ion beams, followed by broad and uniform irradiation using gallium ion beams to induce out-of-plane bending. This technique allows for the fabrication of complex 3D nanostructures and branched nanowires.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Evgeny Mikheev, Tino Zimmerling, Amelia Estry, Philip J. W. Moll, David Goldhaber-Gordon
Summary: In this work, two previously incompatible techniques are combined to define electronic devices. By using focused ion beam (FIB) to shape three-dimensional crystals and two-dimensional electrostatic accumulation of charge carriers, a sacrificial protective layer is used to preserve the surface quality. The accumulation of charge carriers using ionic liquid gating demonstrates the superconductivity of the accumulated carriers, and this technique opens new possibilities for electrostatic charge tuning in materials.
Article
Multidisciplinary Sciences
Zhaoming Su, Kaiming Zhang, Kalli Kappel, Shanshan Li, Michael Z. Palo, Grigore D. Pintilie, Ramya Rangan, Bingnan Luo, Yuquan Wei, Rhiju Das, Wah Chiu
Summary: This study presents cryo-EM structures of the Tetrahymena ribozyme in substrate-free and bound states, revealing new peripheral helical structures and kissing loop pseudoknots. The global architecture is nearly identical, with significant conformational changes and localized shifts in the internal guide sequence and guanosine binding site upon RNA substrate binding. These results provide a long-sought structural view of a paradigmatic RNA enzyme and signal a new era for cryo-EM-based study of structure-function relationships in ribozymes.
Article
Chemistry, Physical
Katharina Witzke, Marcus Frank, Olaf Specht, Ute Schulz, Claudia Oehlschlaeger, Detlef Behrend, Peter Ottl, Mareike Warkentin
Summary: This study compared TEM preparation methods for mineralized human enamel and dentine and found that focused ion beam (FIB) technique was more suitable for enamel. The study also identified artificial saliva and glutardialdehyde solution as an effective fixative for mineralized tissue.
Article
Instruments & Instrumentation
M. S. Kwag, C. Akers, K. B. Lee, T. Shin, K. Tshoo
Summary: KoBRA can produce RI beams with energies of 5-10 MeV/u from stable ion beams (10-40 MeV/u) delivered from the superconducting linear accelerator SLC3 of RAON. In its early phase of operation, transfer reaction measurements with these RI beams can be performed for nuclear astrophysics studies. SNACK has been developed at RISP in order to measure the light ejectiles from the transfer reactions, and the expected results of transfer reaction measurements with SNACK and KoBRA beamline detectors were calculated by using a Monte Carlo simulation.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Chemistry, Inorganic & Nuclear
Pablo Orus, Fabian Sigloch, Soraya Sangiao, Jose Maria De Teresa
Summary: Ga+ Focused Ion Beam Induced Deposition (FIBID) is a nanopatterning technique that utilizes a focused beam of Ga+ ions to locally induce the decomposition of a gaseous precursor material. By stacking individual patterns, growth along the vertical direction can be achieved, resulting in nanopillars with heights up to 10 μm and potential applications in the design of 3D superconducting devices.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Analytical
Zhifu Feng, Damiano Giubertoni, Alessandro Cian, Matteo Valt, Mario Barozzi, Andrea Gaiardo, Vincenzo Guidi
Summary: In this study, a new method combining electron beam lithography (EBL) and focused ion beam (FIB) technologies is proposed to achieve low power consumption in MOS gas sensors. The miniaturization of the hotplate geometry is realized using this method, reducing power consumption effectively. The effectiveness and feasibility of this method are demonstrated through characterization and testing.
Article
Nanoscience & Nanotechnology
Mitchell Semple, Aaron C. Hryciw, Peng Li, Eric Flaim, Ashwin K. Iyer
Summary: This study systematically investigates the use of helium focused ion beam milling of gold for nanoplasmonic metasurface applications, demonstrating the reliable patterning of 10 nm features into gold with complex geometries over a wide area. The results provide strong support for the application of nanoplasmonic metasurfaces in modern research areas.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Analytical
Mariachiara Manoccio, Marco Esposito, Adriana Passaseo, Massimo Cuscuna, Vittorianna Tasco
Summary: The focused ion beam (FIB) technology plays a crucial role in the advancement of micro- and nano-systems in various research areas. Its applications have expanded to the field of photonics, enabling the development of systems with complex shapes and precise geometrical features. This technology has the potential to create novel nanophotonic devices for a wide range of applications, from polarization control to subwavelength imaging.