Results 111 to 120 of about 120,424 (325)
Advanced Functional Materials, EarlyView.Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan +8 more
wiley +1 more source
Valley controlled spin-transfer torque in ferromagnetic graphene junctions
New Journal of Physics, 2018 The presence of the valley degree of freedom in graphene leads to the valleytronics, in which information is encoded by the valley quantum number of the electron.
Zhi Ping Niu
doaj +1 more source
Advanced Healthcare Materials, EarlyView.To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery +10 more
wiley +1 more source
Spintronics and magnetic memory devices
Advances in Physics: XSpintronics technology enables electrical reading and writing of magnetization orders, thus have led to development of magnetic random access memory (MRAM).
Gyung-Min Choi +6 more
doaj +1 more source
Unified theory of magnetization dynamics with relativistic and nonrelativistic spin torques
, 2018 Spin torques play a crucial role in operative properties of modern spintronic devices. To study current-driven magnetization dynamics, spin-torque terms providing the action of spin-polarized currents have previously often been added in a ...
Berritta, Marco +2 more
core +1 more source
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
Inequal Three Qubit Entanglement Using GHZ State Generation for Spin-Torque Based Qubit Architecture
IEEE Open Journal of NanotechnologyThis article presents the generation of Greenberger–Horne–Zeilinger (GHZ) states using a spin-torque-based qubit architecture, introducing a hardware-native decomposition of the Hadamard and controlled NOT (CNOT) gates.
Anant Aravind Kulkarni, Shivam Verma
doaj +1 more source
High write endurance up to 1012 cycles in a spin current-type magnetic memory array
AIP Advances, 2019 We demonstrated high write endurance of up to 1012 cycles with a pulse write current of 10 ns in a spin current-type (SC) single magnetic tunnel junction (MTJ) element and 8×8 memory array.
Yohei Shiokawa +6 more
doaj +1 more source
Spin torque, tunnel-current spin polarization and magnetoresistance in MgO magnetic tunnel junctions
, 2005 We examine the spin torque (ST) response of magnetic tunnel junctions (MTJs) with ultra-thin MgO tunnel barrier layers to investigate the relationship between the spin-transfer torque and the tunnel magnetoresistance (TMR) under finite bias. We find that
Buhrman, R. A. +6 more
core +1 more source
Advanced Materials, EarlyView.Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho +9 more
wiley +1 more source