Results 71 to 80 of about 940,617 (259)

Spin diffusion and injection in semiconductor structures: Electric field effects

, 2002
In semiconductor spintronic devices, the semiconductor is usually lightly doped and nondegenerate, and moderate electric fields can dominate the carrier motion. We recently derived a drift-diffusion equation for spin polarization in the semiconductors by
A. Fert, A. G. Aronov, A. T. Hanbicki, B. T. Jonker, D. Grundler, D. L. Smith, D. T. Pierce, E. I. Rashba, G. Kirczenow, G. Schmidt, G. Schmidt, H. J. Zhu, I. D’Amico, I. I. Mazin, I. Malajovich, I. Ẑutić, I. Ẑutić, J. C. Egues, J. C. Egues, J. M. Kikkawa, J. M. Kikkawa, J. M. Kikkawa, K. A. Kilian, M. E. Flatté, M. E. Flatté, M. E. Flatté, O. Wunnicke, P. C. van Son, R. Fiederling, R. J. Soulen, S. A. Wolf, S. Hershfield, T. Sogawa, V. F. Motsnyi, X. Hao, Y. Ohno, Yu. V. Sharvin, Z. G. Yu, Z. G. Yu   +38 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Tracking Regulatory Mechanism of Trace Fe on Graphene Electromagnetic Wave Absorption

Nano-Micro Letters
Highlights A carrier injection strategy is firstly proposed by designing Fe/reduced graphene oxide (RGO) heterogeneous interfacial material for giving full play to the dielectric dispersion properties of graphene.
Kaili Zhang, Yuhao Liu, Yanan Liu, Yuefeng Yan, Guansheng Ma, Bo Zhong, Renchao Che, Xiaoxiao Huang   +7 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Strain-engineered flexoelectricity and oxygen vacancy dynamics for modulating interfacial charge transport in BaTiO3

Journal of Materiomics
Strain engineering has emerged as a powerful strategy for tailoring the ferroelectric properties and interfacial charge transport behaviors in complex oxide heterostructures. However, the underlying coupling mechanisms between strain-induced polarization
Guoyang Shen, Zhibin Wen, Zhiguo Wang, Longlong Shu   +3 more
doaj   +1 more source

Protein Dielectrophoresis: I. Status of Experiments and an Empirical Theory

Micromachines, 2020
The dielectrophoresis (DEP) data reported in the literature since 1994 for 22 different globular proteins is examined in detail. Apart from three cases, all of the reported protein DEP experiments employed a gradient field factor ∇ E m 2 that ...
Ralph Hölzel, Ronald Pethig
doaj   +1 more source

Carrier-mediated magnetoelectricity in complex oxide heterostructures

, 2007
While tremendous success has been achieved to date in creating both single phase and composite magnetoelectric materials, the quintessential electric-field control of magnetism remains elusive. In this work, we demonstrate a linear magnetoelectric effect
A Antons, AR Chaudhuri, C Binek, C-G Duan, CH Ahn, CJ Fennie, D Astrov, D Chiba, DJ Singh, F Giustino, FL Marrec, G Srinivasan, H Ohno, H Tanaka, H Yamada, H Zheng, HJ Monkhorst, I Dzyaloshinskii, II Mazin, J VandeVondele, J Wang, James M. Rondinelli, JP Velev, KS Takahashi, M Fiebig, M Stengel, M Stengel, M Stengel, M Weisheit, Massimiliano Stengel, Nicola A. Spaldin, P Borisov, P Borisov, PB Allen, PE Blöchl, R Car, S Baroni, S Dong, T Kimura, T O'Dell, T Zhao, WE Pickett, WJ Gallagher   +42 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Visualization of interfacial adhesive defects at dental restorations with spectral domain and polarization sensitive optical coherence tomography

Current Directions in Biomedical Engineering, 2018
Restoration loss based on interfacial adhesive defects and associated caries at the restoration margin are the main causes for invasive replacement of dental restorations.
Tetschke Florian, Golde Jonas, Walther Julia, Kirsten Lars, Koch Edmund, Hannig Christian, Rüger Claudia, Schneider Hartmut, Haak Rainer   +8 more
doaj   +1 more source

Parameters Identification and Application of Equivalent Circuit at Low Frequency of Oil-Paper Insulation in Transformer

IEEE Access, 2020
The low frequency section of frequency domain spectroscopy (FDS) of oil-paper insu- lation system can effectively reflect the ageing state and moisture of the oil-immersed paper. Meanwhile, steady-state insulation resistance is the one of indexes for the
Yiming Xie, Jiangjun Ruan
doaj   +1 more source