Article
Astronomy & Astrophysics
D. Bollweg, J. Goswami, O. Kaczmarek, F. Karsch, Swagato Mukherjee, P. Petreczky, C. Schmidt, P. Scior
Summary: This study updates lattice QCD results for second order cumulants of conserved charge fluctuations and correlations, comparing them to hadron resonance gas calculations and S-matrix results to characterize thermal conditions near the pseudocritical line of the chiral transition in QCD. The study finds that the ratio of strange to baryon chemical potentials is a robust observable that is sensitive to the spectrum of strange baryon resonances.
Article
Physics, Multidisciplinary
Arya Datta, Patrick Pietzonka, Andre C. Barato
Summary: Macroscopic cyclic heat engines have been a major motivation for the emergence of thermodynamics. In recent years, cyclic heat engines that have large fluctuations and operate at finite time have been studied within the framework of stochastic thermodynamics. This study examines the concept of cyclic active heat engines for systems with hidden dissipative degrees of freedom and introduces a general second law for active heat engines using a known inequality in stochastic thermodynamics.
Article
Chemistry, Multidisciplinary
Tiantian Wei, Yuyao Lu, Fan Zhang, Jianshi Tang, Bin Gao, Pu Yu, He Qian, Huaqiang Wu
Summary: In this study, the conductive filaments (CFs) with different morphologies after forming, set, and reset operations in HfOx-based memristor devices are clearly revealed for the first time through 3D reconstruction of conductive atomic force microscopy (c-AFM) images. Multiple CFs are successfully observed in devices with three different resistive states, exhibiting hourglass, inverted-cone, and short-cone morphologies. The rupture location of CFs after the reset operation is also clearly observed. These findings provide insights into the resistive switching mechanism and can contribute to the design and optimization of oxide-based memristors for memory and computing applications.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Hoang Mai Luong, Minh Thien Pham, Tyler Guin, Richa Pokharel Madhogaria, Manh-Huong Phan, George Keefe Larsen, Tho Duc Nguyen
Summary: The study has developed a lightweight optical hydrogen sensor based on Pd nano-patchy particle arrays that can rapidly and accurately detect hydrogen gas concentration. By incorporating 20% Ag, Au, or Co, the sensing performance of the Pd-alloy sensor is significantly enhanced.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Fluids & Plasmas
Lianjie He, Andri Pradana, Jian Wei Cheong, Lock Yue Chew
Summary: We study a class of discrete-time information ratchet models and explore their thermodynamic consequences as Maxwell demons. It is found that due to the finite information capacity of the tape, these models cannot sustain the operational regime of an engine or eraser. However, cumulative work can be accrued or expended through successive tape scans, and the ratchets obey the information processing second law at all times.
Article
Physics, Fluids & Plasmas
Sudipta Pattanayak, Shradha Mishra, Sanjay Puri
Summary: The introduction of activity has a drastic effect on the ordering kinetics, leading to changes in domain growth law and dynamical scaling of the equal-time correlation function of the density field.
Article
Chemistry, Analytical
Cristiane Kalinke, Paulo Roberto de Oliveira, Naile Vacilotto Neumsteir, Brunna Ferri Henriques, Gabriel de Oliveira Aparecido, Hugo Campos Loureiro, Bruno Campos Janegitz, Juliano Alves Bonacin
Summary: This study demonstrates the influence of filament aging, conductive material, and activation processes on the surface characteristics and electrochemical performance of 3D printed sensors. The activated graphene-based sensor exhibits the best electrochemical response, while filament aging decreases the performance of the sensors. Evaluating and controlling the characteristics and quality of filaments is important for improving the performance of 3D printed sensors.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Youn Sung Na, June-Chul Shin, Eunji Ji, Woong Huh, Inhyuk Im, Kenji Watanabe, Takashi Taniguchi, Ho Won Jang, Chul-Ho Lee, Gwan-Hyoung Lee
Summary: 2D materials have intriguing properties but are highly sensitive to external conditions, requiring passivation to maintain stability. This study demonstrates a novel method for fabricating stable irreversible conductive filament contacts on hBN-passivated 2D channels.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Physics, Applied
Calvin Xiu Xian Lee, Putu Andhita Dananjaya, Mun Yin Chee, Han Yin Poh, Funan Tan, Jia Rui Thong, Lingli Liu, Gerard Joseph Lim, Yuanmin Du, Juan Boon Tan, Wen Siang Lew
Summary: The resistive switching variability of CBRAM devices is significantly improved by employing Co-Cu alloy as the active electrode, resulting in improved filament stability and device performance. Through experimental results and a physical model, the advantages of Co70Cu30 alloy in CBRAM have been demonstrated, highlighting the significant influence of the relative proportion between Co and Cu on the device performance.
APPLIED PHYSICS LETTERS
(2023)
Article
Crystallography
Ziyad Aloqalaa
Summary: FDM technology is widely used in 3D printing and the development of conductive filaments shows promising prospects. This paper compares currently available conductive filaments by measuring their resistance value and defects, as well as reviews articles on medical applications of conductive FDM filaments for future medical researchers.
Article
Chemistry, Physical
Henriette Grellmann, Mathis Bruns, Felix Michael Lohse, Iris Kruppke, Andreas Nocke, Chokri Cherif
Summary: The study aims to develop electrically conductive and elastic filaments based on a coating process for TPU multifilament yarns, in order to address the low mechanical elongation issue of current electrically conductive fibers.
Article
Multidisciplinary Sciences
Daniel K. Hoffmann, Vijay Pal Singh, Thomas Paintner, Manuel Jaeger, Wolfgang Limmer, Ludwig Mathey, Johannes Hecker Denschlag
Summary: Researchers demonstrate the variation of second sound wave in the crossover from Bose-Einstein condensate to Bardeen-Cooper-Schrieffer superfluid using ultracold fermionic Li-6 atoms with tunable interactions. The speed of second sound varies only slightly in this crossover regime, providing deeper insight into the propagation of sound waves. The measurement results are compared with classical-field simulations to aid in the interpretation of experiments.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Jiachao Zhou, Anzhe Chen, Yishu Zhang, Dong Pu, Baoshi Qiao, Jiayang Hu, Hanxi Li, Shuai Zhong, Rong Zhao, Fei Xue, Yang Xu, Kian Ping Loh, Hua Wang, Bin Yu
Summary: This study investigates polarization switching and ionic conduction in 2D vdW CIPS and discovers that the conducting mechanisms can be divided into four states. It demonstrates that dynamically-tunable synaptic responsive behavior can be achieved through controlling the working-state transition.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiachao Zhou, Anzhe Chen, Yishu Zhang, Dong Pu, Baoshi Qiao, Jiayang Hu, Hanxi Li, Shuai Zhong, Rong Zhao, Fei Xue, Yang Xu, Kian Ping Loh, Hua Wang, Bin Yu
Summary: The recently discovered ferroionic phenomena in 2D van der Waals copper-indium-thiophosphate (CIPS) have attracted widespread interest due to their potential for dynamic control of conductive switching properties, which is highly desirable for paradigm-shift computing. The intricate couplings between ferroelectric polarization and ionic conduction in 2D CIPS allow for manipulation and dynamic control of conductive behaviors. However, the complex interplays and underlying mechanisms are not fully understood yet.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Bennett D. Marshall
Summary: A new concept of association dependent hard sphere diameter has been introduced to enhance the accuracy of the PC-SAFT equation of state model for water. This approach represents a significant advancement in accurately predicting pure water properties compared to traditional PC-SAFT applications, and there is potential for its extension to mixtures.
Article
Physics, Applied
V. Karpov, D. Niraula, I. Karpov
APPLIED PHYSICS LETTERS
(2016)
Article
Nanoscience & Nanotechnology
D. Niraula, C. R. Grice, V. G. Karpov
Article
Physics, Applied
Dipesh Niraula, Victor Karpov
JOURNAL OF APPLIED PHYSICS
(2018)
Article
Physics, Applied
Osama A. Oudat, Vamsi Borra, Daniel G. Georgiev, Victor G. Karpov
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Correction
Physics, Applied
Osama A. Oudat, Vamsi Borra, Daniel G. Georgiev, Victor G. Karpov
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Engineering, Electrical & Electronic
V. G. Karpov, D. Niraula
IEEE ELECTRON DEVICE LETTERS
(2019)
Article
Physics, Applied
Maria Patmiou, D. Niraula, V. G. Karpov
APPLIED PHYSICS LETTERS
(2019)
Article
Education, Scientific Disciplines
V. G. Karpov, Maria Patmiou
EUROPEAN JOURNAL OF PHYSICS
(2020)
Article
Nanoscience & Nanotechnology
V. G. Karpov, G. Serpen, Maria Patmiou, Diana Shvydka
Article
Physics, Applied
Maria Patmiou, V. G. Karpov, G. Serpen, B. R. Weborg
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Physics, Applied
Osama Oudat, Vidheesha Arora, E. Ishmael Parsai, Victor G. Karpov, Diana Shvydka
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Physics, Applied
V. G. Karpov
Summary: A phenomenological theory is developed to explain the pulse induced phase transformations in nonvolatile memory. It is found that both SET and RESET processes can evolve in the adiabatic regime with different operating modes, driven by voltage source and current source respectively. The characteristic temperatures and transition rates are determined by material and process parameters.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Victor G. Karpov, Diana Shvydka, Sandip S. Bista
Summary: Research shows that thin film CdTe solar cells exhibit threshold switching phenomenon, creating a conductive filament to reach the buried electrode. Unlike existing PV technology which uses laser scribe filled metals to connect the buried electrode, our work introduces a no-scribe PV technology as an alternative.
APPLIED PHYSICS LETTERS
(2021)
Article
Mathematics, Interdisciplinary Applications
V. G. Karpov, G. Serpen, Maria Patmiou
JOURNAL OF PHYSICS-COMPLEXITY
(2020)
Article
Physics, Applied
Biwas Subedi, Dipesh Niraula, Victor G. Karpov
APPLIED PHYSICS LETTERS
(2017)