Abstract Rare‐earth iron garnets (RIG, R 3 Fe 5 O 12 ) are insulating ferrimagnets with high inversion symmetry because of their centrosymmetric cubic crystal structure. However, this centrosymmetry can be reduced by introducing a non‐uniform strain, leading to tetragonally distorted lattice In study, the strain‐induced distortions and symmetry‐breaking features investigated in compressively strained Sm tensile‐strained Lu thin films around critical thicknesses. Experiments indicate that...

Abstract Gain-dissipative Ising machines (GIMs) are dedicated devices that can rapidly solve combinatorial optimization problems. The noise intensity in traditional GIMs should be significantly smaller than its saturated fixed-point amplitude, indicating a lower margin. To overcome the existing limit, this work proposes an overdamped bistability-based GIM (OBGIM). Numerical test on uncoupled spin network show OBGIM has different bifurcation dynamics from of GIM. Moreover, domain clustering...

Spin waves (SWs), an ultra-low power magnetic excitation in ferro or antiferromagnetic media, have tremendous potential as transport less data carriers for post-CMOS technology using their wave interference properties. The concept of magnon originates from optical interference, resulting a historical taboo maintaining identical wavevector interference-based devices. This makes the attainment on-chip design reconfigurability challenging owing to difficulty phase tuning via external fields....

Detection of parts-per-trillion (ppt)-level acetone gas molecules at room temperature using suspended graphene on SiO2 micropillars has rarely been achieved solid-state devices or surface acoustic wave (SAW) sensors. This paper presents the effect and as a guiding sensing layer to detect gas. The integration with introduces coupled resonance arising from interaction between mechanical vibrations micropillars. leads formation hybrid modes when natural frequencies align. coupling mechanism...

Substituting rare-earth Eu ions with a large atomic number into 3d transition metal oxides can precisely control their magnetic properties through significant spin-orbit coupling, leading to noncollinear magnetism. Experimental investigations are combined density functional theory explore site-selective Eu3+ substitution as strategy enhance the of Fe3O4 thin films. The location Eu3+, that is, octahedral versus tetrahedral, is confirmed by electrical resistivities and valence band...

This study investigates the effects of epitaxial strain on crystal structure, magnetization, and spin wave propagation characteristics rare-earth iron garnet thin films. Thin films Y3Fe5O12 (YIG) Lu3Fe5O12 (LuIG), each with identical thicknesses, are grown Gd3Ga5O12 (GGG), substituted Gd3(GaMgZr)5O12 (SGGG), Y3Al5O12 (YAG) substrates, causing systematic variation in based substrate lattice constants. Exceeding a certain critical thickness for relaxation, strained epitaxy transitions to...

This study explores the magnetic properties of a thin film Al-substituted Y3Fe5O12 grown on Y3Al5O12 (111) substrates using pulsed laser deposition. Spin-glass behavior was observed near room temperature in film, with spin-freezing 345 K achieved. is significantly higher than those previously reported for spin-glass systems based Fe oxides. The exhibited characteristic memory and rejuvenation effects below temperature, which are explained by relaxation via metastable states within...

Abstract Gain‐dissipative Ising machines (GIMs) are a type of quantum analog equipment that can rapidly determine the optimal solution for combinatorial optimization problems. When noise intensity is significantly lower than fixed point system, performance GIM not influenced by fluctuation intensity. However, in this study limited to Gaussian white noise. The influence prevalent colored on GIMs has been researched. In study, common‐colored numerically investigated. results domain clustering...

Abstract Flexoelectricity is a universal property associated with dielectric materials, wherein they exhibit remanent polarization induced by strain gradient. Rare-earth iron garnets, R 3 Fe 5 O 12 , are ferrimagnetic insulators useful magnetic properties. However, unlikely to show because of their centrosymmetric structure. Here, induce flexoelectricity, we investigate various rare-earth iron-garnet thin films deposited on lattice-mismatched substrates. Atomic-resolution scanning...

Logical stochastic resonance (LSR) is a paradigm to realize reconfigurable robust Boolean operations using specific nonlinearity in the presence of background noise. The stable-state number traditional LSR less than four, which restricts its upper limit heavy noise floor. To further improve robustness and output quality LSR, we proposed quadstable based system for first time this work. Using parameters determined by ant lion optimizer, compare performance (QLSR) tristable (TLSR) as logic...

To improve the quality of modern life in current society, low-power, highly sensitive, and reliable healthcare technology is necessary to monitor human health real-time. In this study, we fabricated partially suspended monolayer graphene surface acoustic wave gas sensors (G-SAWs) with a love-mode effectively detect ppt-level acetone molecules at room temperature. The sputtered SiO2 thin film on black 36°YX-LiTaO3 (B-LT) substrate acted as guiding layer, reducing noise insertion loss. G-SAWs...

Superparamagnetic tunnel junctions (SMTJs) are spintronic nanodevices that can oscillate spontaneously under the influence of thermal noise. Studies have proposed SMTJs be modeled as magnetic neurons by subjecting them to electrical Gaussian white noise and subsequently synchronized subthreshold driving. Considering non-Gaussian background in industrial applications, this study investigated levy on SMTJ synchronization. The results revealed with weak pulse characteristics used promote...

Accurately detecting the depolarization QRS complex in ventricles is a fundamental requirement for cardiovascular disease detection using electrocardiography (ECG). In contrast to traditional signal enhancement algorithms, emerging neural network approaches have shown promise because of their generalizability on data. However, inevitable noise present during ECG recording leads decrease performance networks. To enhance robustness and network-based detectors, we propose simulated degeneration...

Abstract Gain‐dissipative Ising machines (GIMs) are annealers inspired by physical systems such as spin glasses to solve combinatorial optimization problems. Compared traditional quantum annealers, GIM is relatively easier scale and can save on additional power consumption caused low‐temperature cooling. However, GIMs have a limited noise margin. Specifically, their normal operation requires ensuring that the intensity lower than saturation fixed point amplitude, which may result in...

This paper presents a comparative study between CNT MOSFET and TFET taking into account of different dielectric strength gate oxide materials. Here we have studied the transfer characteristics, on/off current (ION/IOFF) ratio subthreshold slope device using Non Equilibrium Greens Function (NEGF) formalism in tight binding frameworks. The results are obtained by solving NEGF Poisson's equation self-consistently NanoTCADViDES environment found that ON state performance significant dependency...

We present a dynamic spin wave (SW) modulation technique using direct current (DC) to manipulate the magnetic properties of an ultralow-damping Y3Fe5O12 thin film. The microwave excitation and detection with two coplanar waveguide antenna arrangements on (YIG) surface is used characterize SW. An additional platinum (Pt) stripe connected source integrated between pair demonstrate SW resonant frequency amplitude by induction. selected Pt due its significantly lower absorption property....

This paper presents a simple and upfront design of three-bit threshold inverter quantization (TIQ) based flash analog to digital converter (ADC) chip. TIQ ADC does not require any on-chip or off-chip reference voltage as needed in other ADCs. Switching an can be set required input by optimizing the width-ratio nMOS pMOS transistors CMOS technology. The chip was implemented simulated Cadence Virtuoso layout accomplished Layout Suite AMI's C5 process.

Spin waves (SWs) have tremendous application potential in wave-based computation utilizing a broad frequency spectrum spanning from the gigahertz-to-terahertz ranges. Like optical and other electromagnetic waves, SWs also promise to usher new era of parallel data processing with low-power consumption without Joule heating. However, this is undermined by lack investigation on multichannel networking operation single chips under uniform bias magnetic field. This study proposes multifrequency...

This paper represents a wide-band inverter-based phase interpolator (PI) designed for spin-wave detection circuit with all digital control. The proposed PI consists of selector selecting two input phases, band to control the slew rate good linearity in wide operating frequency range, and mixer output tuning. is implemented 65nm CMOS technology operates from 1GHz 5GHz, 1V supply. power consumption core 2.78mW at 5GHz. measured differential non-linearity integral are 3.2 LSB -10.4 respectively...

Abstract Magnonics, an emerging research field that uses the quanta of spin waves as data carriers, has a potential to dominate post-CMOS era owing its intrinsic property ultra-low power operation. Spin can be manipulated by wide range parameters; thus, they are suitable for sensing applications in physical fields. In this study, we designed highly sensitive, simple structure, and magnetic sensor using CoFeB/Y 3 Fe 5 O 12 bilayer structure. We demonstrated structure create sharp rejection...

We present a comparison of the spin wave propagation in Au/Y3Fe5O12 and Pt/Y3Fe5O12 bilayers. Microwave technique with co-planner waveguide arrangement was used to excite detect wave. observed suppression propagating intensity when metal stripe is placed on surface Y3Fe5O12 path due pumping from nonmagnetic stripe. However, significant difference property Au Pt electrode layers, which cannot be explained by enhancement damping constant induced alone. The bilayer system attributed backflow...

This paper presents the gate oxide dielectric strength and its thickness-dependent performance of a graphene nanoribbon MOSFET (GNRMOSFET). Here we have studied transfer characteristics, on/off current (I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ON</inf> /I xmlns:xlink="http://www.w3.org/1999/xlink">OFF</inf> ) ratio, subthreshold slope drain induced barrier lowering (DIBL) device using Non Equilibrium Greens Function (NEGF) formalism in...