Article
Quantum Science & Technology
Yanlong Chang, Jia-Qi Li, Wenqing Zhu, Xulin Wu, Xin Wang, Hongrong Li, Xiaoli Wang
Summary: A scheme for a microwave photonic circulator based on optomechanical-like superconducting interactions is proposed, providing stronger coupling and lower noise compared to optomechanical systems. The transmission direction can be controlled by the phase differences between driving fields, and the effects of imperfection are investigated. The results offer a theoretical proposal for achieving a high-isolation and low-dissipation microwave photonic circulator.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
N. Labchir, A. Hannour, A. Ait Hssi, D. Vincent, A. Ihlal
Summary: This paper presents the design and fabrication of a self-biased coplanar circulator using magnetic composite substrates and magneto-electrodeposition technique. The experimental and simulation results demonstrate the successful implementation of a prototype with a circulation phenomenon of 3 dB, highlighting the excellent magnetic properties of the composite material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Joseph Um, Yali Zhang, Wen Zhou, Mohammad R. Zamani Kouhpanji, Cosmin Radu, Rhonda R. Franklin, Bethanie J. H. Stadler
Summary: Nanomaterials, especially magnetic nanowires, have garnered attention across various fields for their ability to identify objects based on their magnetic signatures. Ferromagnetic resonance (FMR) is the fastest measurement method and shows potential to identify multiple high-frequency signatures simultaneously. Iron, cobalt, and nickel MNW samples were fabricated and measured using an FMR-identification (FMR-ID) system, which was optimized for DC bias fields parallel to the nanowires and microwave frequencies of 20 GHz or higher. This MNW-based FMR-ID labeling system is effective for applications requiring small identification markers.
ACS APPLIED NANO MATERIALS
(2021)
Review
Optics
Yu You, Yiqi Hu, Gongwei Lin, Yihong Qi, Yueping Niu, Shangqing Gong
Summary: On-chip single-photon nonreciprocal devices with high isolation and low insertion loss are achieved by utilizing electromagnetically induced transparency in chiral quantum systems. These devices, including a single-photon isolator and a single-photon circulator, provide high isolation and low insertion loss, while significantly broadening their bandwidths with the assistance of electromagnetically induced transparency.
Article
Chemistry, Physical
Chen Jianfeng, Liu Yingli, Yin Qisheng
Summary: The anisotropic BaFe12-xCoxO19 samples were synthesized and their crystal structure, microstructure, and magnetic properties were investigated. The potential application value of these samples at millimeter waveband was discussed. Substituting Cobalt successfully decreased the magnetic anisotropy field and saturation, and the site preference of cobalt in different Fe ions was calculated and discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Bernardo Patella, Salvatore Piazza, Carmelo Sunseri, Rosalinda Inguanta
Summary: Anodic alumina membranes with a high degree of porous structure are ideal templates for manufacturing nanostructured materials in optoelectronics, sensors, magnetic memories, and electronic circuits. By adjusting anodizing parameters, the morphology characteristics such as pore length, pore diameter, and cell density can be accurately controlled. The addition of aluminum ions to phosphoric acid-based anodizing solution can significantly affect the morphology of the porous layer in anodic alumina membranes, impacting the overall structure and properties.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
Giuseppe Abbondanza, Andrea Grespi, Alfred Larsson, Dmitry Dzhigaev, Lorena Glatthaar, Tim Weber, Malte Blankenburg, Zoltan Hegedues, Ulrich Lienert, Herbert Over, Gary S. Harlow, Edvin Lundgren
Summary: We investigated the structural evolution of electrochemically fabricated Pd nanowires in situ using various techniques. Our study demonstrated the formation of beta-phase Pd hydride during the bottom-up growth of the nanowires and its phase transition to alpha-phase Pd after electrodeposition was suspended. We also found that grain coalescence hindered the incorporation of hydrogen in the Pd unit cell.
Article
Materials Science, Ceramics
Maxence Renaux, Damien Meresse, Julien Pelle, Anthony Thuault, Celine Morin, Christelle Nivot, Christian Courtois
Summary: The mechanical SOVS model is adapted to predict material properties during microwave sintering of ceramic materials, showing a decrease in shear viscosity and significant increase in grain boundaries diffusion coefficient in comparison to conventional sintering. The relative densities calculated from the model show good agreement with experimental results, with a relative difference of under 3%.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Physics, Multidisciplinary
V. Fernandez Becerra, Mircea Trif, Timo Hyart
Summary: We study the properties of semiconducting nanowires with induced superconductivity and ferromagnetism, and find that spin pumping is quantized in the topologically nontrivial phase while charge pumping is not. In long topologically nontrivial nanowires, there is a one-to-one correspondence between quantized conductance, entropy change, and spin pumping. The observation of correlated and quantized peaks in conductance, entropy change, and spin pumping would provide strong evidence of Majorana zero modes.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Qi Qin, Jing Chen, Meng Song, Fengyi Cao, Yunan Li, Fang He, Zhongzhu Liu, Genxing Zhu, Quan Diao
Summary: In this study, silicon carbide nanowires were successfully prepared by microwave sintering using graphene and ethyl orthosilicate as precursors. The samples were fully characterized and analyzed by XRD, FTIR, and SEM. The results demonstrated that microwave sintering is a more energy-efficient, cost-saving, and efficient way to synthesize SiC.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Qisheng Yin, Yingli Liu, Xin Wang, Kui Liu, Jian Wu, Jie Li, Jianfeng Chen, Shifan Lu
Summary: In this study, the crystal structure, dielectric properties, and gyromagnetic characteristics of Zn-Sn codoped Y3ZnxSnxFe5-2xO12 materials were investigated. The results showed that Zn2+-Sn4+ codoping can increase the relative dielectric constant by enhancing the average ionicity. The appropriate codoping can also improve the morphology and reduce microwave losses of YIG ferrites. The optimized microwave properties were observed in Y3Zn0.3Sn0.3Fe4.4O12 material, with a relative dielectric constant of 15.6, dielectric loss of 4.3 x 10(-4), saturation magnetization of 2244 G, and ferromagnetic resonance linewidth of 37 Oe.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Zhengyu Zhang, Yixing Li, Yijun Liao, Huawei Rong, Wenting Zhang, Mu Zhang, Gaowu Qin, Xuefeng Zhang
Summary: In this study, a novel approach for synthesizing graphite shells and CNx heterostructures outside the ferromagnetic nanoparticles (FMNPs) has been demonstrated, showing promising potential for other high magnetic loss materials. The microwave absorption performance of FMNP@CNx is correlated with particle sizes, substituted heteroatom contents, and impedance matching, with Fe@CNx nanoparticles treated in 1 minute achieving a minimized RL of 26.8 dB at 5.0 GHz and an effective absorption bandwidth of 5.4 GHz.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Samuele Cornia, Valeria Demontis, Valentina Zannier, Lucia Sorba, Alberto Ghirri, Francesco Rossella, Marco Affronte
Summary: Novel approaches exploiting the interaction between microwaves and quantum devices are being developed for efficient microwave detection. In this study, InAs/InP nanowire double quantum dot-based devices are used as nanoscale detectors to measure the local field without calibration. The detector performance is evaluated, and it is shown that these devices allow direct assessment of the microwave field with high sensitivity and spatial resolution, potentially advancing the development of high-performance microwave circuitries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Javier Garcia, Alejandro M. Manterola, Miguel Mendez, Jose Angel Fernandez-Roldan, Victor Vega, Silvia Gonzalez, Victor M. Prida
Summary: Research on nanowires and nanotubes forming complex structures is relatively scarce, but these structures have specific applications in sensing, high-density magnetic data storage, photonics, and spintronics. To gain a deeper understanding of the magnetic properties exhibited by these nanostructures, complex systems are being fabricated by altering their dimensions or composition to explore magnetization reversal processes and control of magnetic domain walls.
Article
Chemistry, Inorganic & Nuclear
Osama El-Zubir, Pablo Rojas Martinez, Gema Dura, Cameron Doherty, Fabio Cucinotta, Lewis E. E. Mackenzie, Robert Pal, Benjamin R. R. Horrocks, Andrew Houlton
Summary: An RNA-based coordination polymer [Cu-I(mu(3)-S-thioG)](n) 1 is formed by aqueous reaction of Cu-I ions with (-)6-thioguanosine (6tGH). The polymer has a one-dimensional structure based on a [Cu-4-S-4] core and undergoes hierarchical self-assembly from oligomeric chains -> rod -> cable -> bundle, resulting in the formation of a fibrous gel that syneresises to form a self-supporting mass. The assembly involves the formation of helical cables/bundles and, together with the intrinsic photoemission of the polymer, exhibits circularly polarised luminescence (CPL).
DALTON TRANSACTIONS
(2023)
Article
Physics, Applied
Rajkumar Jaiswar, Francisco Mederos-Henry, Sophie Hermans, Jean-Pierre Raskin, Isabelle Huynen
Summary: This paper investigates the nonlinear properties of graphene nanoplatelets decorated with Fe3O4 magnetic nanoparticles, proposing three different models to explain electronic transport in the nanocomposites. The study shows that as the loading of magnetic nanoparticles decreases, the barrier height also decreases, indicating an increase in impedance of the IDE. Additionally, impedance spectroscopy with different DC biases reveals the necessity of a constant phase element in the equivalent circuit to fit the AC response of the IDE, confirming the presence of random phenomena in transport according to the DRRN model.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Omid Mirzaee, Isabelle Huynen, Mohsen Zareinejad
Summary: The study focused on designing single and double layer microwave absorbers using FeCoNi@C metal organic framework and MWCNTs. It was found that the double-layer absorber showed wider absorption bandwidth and lower reflection loss compared to the single-layer absorber, while the single-layer absorber also exhibited good absorption performance at certain frequencies.
Article
Chemistry, Multidisciplinary
Tristan da Camara Santa Clara Gomes, Nicolas Marchal, Flavio Abreu Araujo, Yenni Velazquez Galvan, Joaquin de la Torre Medina, Luc Piraux
Summary: Electrochemical deposition technique allows for the fabrication of mechanically stable three-dimensional magnetic nanostructures with large surface area, providing the possibility to control the geometric characteristics and material composition of interconnected magnetic nanowire or nanotube networks, fine-tuning their magnetic and magneto-transport properties.
Article
Engineering, Electrical & Electronic
Mohammad Alibakhshikenari, Bal S. Virdee, Sonia Aissa, Chan H. See, Ayman A. Althuwayb, Raed A. Abd-Alhameed, Isabelle Huynen, Francisco Falcone, Ernesto Limiti
Summary: A set of singular integral formulations are derived in this letter to calculate the surface impedance matrix on the antenna array elements, enabling electrodynamic analysis of antenna arrays designed using metamaterial-inspired structures. The proposed model offers significantly lower computational cost compared to conventional EM solvers and shows excellent agreement with full-wave EM software, validating its accuracy for single-layer structures.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Chemistry, Physical
Yan Cao, Abdeliazim Mustafa Mohamed, Mehdi Abdollahzadeh, Isabelle Huynen
Summary: This study focuses on the design and synthesis of microwave absorbers based on CoNi-BTC and reduced graphene oxide, resulting in P@CN/G nanocomposites. Through various characterizations, the morphology of nanoparticles and the presence of magnetic Co and Ni nanoparticles were confirmed, leading to the determination of optimal sample parameters for performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Lakhdar Sidi Salah, Nassira Ouslimani, Mohamed Chouai, Yann Danlee, Isabelle Huynen, Hammouche Aksas
Summary: "The study investigated the AC conductivity of Polycarbonate-carbon nanotube (PC-CNT) conductive composites prepared by melt blending extrusion with CNT concentration ranging from 0.25-4.5 wt.%. The percolation threshold was determined theoretically and various models were applied to predict the conductivity. The study found good agreement between the McCullough and Mamunya theoretical models for electrical conductivity, with estimated values for chain branching and aspect ratio."
Article
Multidisciplinary Sciences
Mohammad Alibakhshikenari, Bal S. Virdee, Ayman A. Althuwayb, Leyre Azpilicueta, Naser Ojaroudi Parchin, Chan H. See, Raed A. Abd-Alhameed, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
Summary: By using a non-Foster impedance matching circuit (NF-IMC), the paper demonstrates an effective technique to enhance both the bandwidth and radiation gain of a narrowband composite right/left-handed transmission-line (CRLH-TL) antenna, without compromising the antenna's stability. The proposed technique significantly increases the measured radiation gain and efficiency of the antenna over the operating frequency band, showing a notable improvement compared to a CRLH-TL antenna without the impedance matching circuit.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Mohammad Alibakhshikenari, Bal S. Virdee, Shahram Salekzamankhani, Sonia Aissa, Chan H. See, Navneet Soin, Sam J. Fishlock, Ayman A. Althuwayb, Raed Abd-Alhameed, Isabelle Huynen, James A. McLaughlin, Francisco Falcone, Ernesto Limiti
Summary: This research demonstrates the effectiveness of using SIW technology to enhance the performance of antenna arrays for sub-THz integrated circuit applications, achieving significant improvements in isolation, radiation gain, and efficiency. The proposed approach shows the viability of developing antenna arrays for sub-THz integrated circuits.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Vivien Van Kerckhoven, Luc Piraux, Isabelle Huynen
Summary: This study delves into the parameters affecting the operation of devices based on nanowired alumina substrate, which involve growing metallic nanowires inside porous alumina substrate to build various microwave devices. The performance of these devices depends on material parameters and topology/geometry, combining nanoscale and millimeter scale characteristics.
INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS
(2021)
Article
Multidisciplinary Sciences
Mohammad Alibakhshikenari, Bal S. Virdee, Leyre Azpilicueta, Chan H. See, Raed Abd-Alhameed, Ayman A. Althuwayb, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
Summary: This paper presents a theoretical technique utilizing digital circuitry to automatically tune an LC impedance matching network for antenna-to-RF-front-end matching. The technique achieves reliable convergence without the need for complex mathematical modelling, and demonstrates high accuracy in adaptive antenna matching networks.
SCIENTIFIC REPORTS
(2021)
Article
Computer Science, Information Systems
Musa Hussain, Syed Muhammad Rizvi Jarchavi, Syeda Iffat Naqvi, Usama Gulzar, Salahuddin Khan, Mohammad Alibakhshikenari, Isabelle Huynen
Summary: An umbrella-shaped patch antenna for future millimeter-wave applications in the 5G frequency band is presented. The antenna design was validated experimentally and compared with state of the art work, showing good correlation and potential as a candidate for 5G devices.
Article
Chemistry, Analytical
Lakhdar Sidi Salah, Nassira Ouslimani, Yann Danlee, Isabelle Huynen
Summary: This study compares the electromagnetic properties of virgin and recycled samples with different thicknesses and weight concentrations, showing the advantages of the recycled structure on EM performance.
Article
Chemistry, Physical
Freddys R. R. Beltran, Hammouche Aksas, Lakhdar Sidi Salah, Yann Danlee, Isabelle Huynen
Summary: Polymer composites based on polylactic acid (PLA) reinforced with carbon nanotubes (CNTs) were synthesized and their electrical conductivity was investigated. The percolation threshold for electrical conduction was determined using classical models and was found to be 1 wt.% of CNTs in the DC regime and below 0.25 wt.% in the microwave regime. The McCullough model showed the best fit for the experimental data, and the results are important for understanding the electrical properties of CNT-based composites.
Article
Computer Science, Information Systems
Mohammad Alibakhshikenari, Bal S. Virdee, Pancham Shukla, Yan Wang, Leyre Azpilicueta, Mohammad Naser-Moghadasi, Chan Hwang See, Issa Elfergani, Chemseddine Zebiri, Raed A. Abd-Alhameed, Isabelle Huynen, Jonathan Rodriguez, Tayeb A. Denidni, Francisco Falcone, Ernesto Limiti
Summary: This paper presents a method of using metamaterial-inspired T-matching network to optimize power transfer between a microstrip antenna and an RF wireless transceiver, achieving improved antenna performance over a wide frequency range. There is a good correlation between the theoretical model, method of moments simulation, and the measurement results.
Article
Computer Science, Information Systems
Mohammad Alibakhshikenari, Bal S. Virdee, Leyre Azpilicueta, Mohammad Naser-Moghadasi, Mobayode Olusola Akinsolu, Chan Hwang See, Bo Liu, Raed A. Abd-Alhameed, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
