Results 131 to 140 of about 254,791 (289)

Dirac Semimetallicity Enabled by Stripe Antiferromagnetism in Monolayer FeSe

open access: yesAdvanced Functional Materials, EarlyView.
In monolayer FeSe, stripe antiferromagnetic order selectively breaks mirror symmetry, enabling odd inter‐orbital hybridization between opposite‐parity Fe 3d states. This mechanism stabilizes symmetry‐protected Dirac nodes with nontrivial Wilson‐loop topology and edge states, accompanied by a strong orbital diamagnetic susceptibility as an experimental ...
Darius‐Alexandru Deaconu   +5 more
wiley   +1 more source

AFM tip-induced dielectrophoresis for 3D manipulation of nanoparticles

open access: yes, 2014
Atomic force microscopy (AFM) and dielectrophoresis (DEP) technologies have been used as excellent tools for nanomanipulation and nanoassembly. AFM-based manipulation exhibits excellent positioning and very high accuracy.
Wei FN(魏发南)   +5 more
core  

Emergence of a Hexagonal Fe2S2 Single Layer Without a Bulk Counterpart via Phase Transformation

open access: yesAdvanced Functional Materials, EarlyView.
Upon annealing, single‐layer Mackinawite iron sulfide transforms into a previously unknown hexagonal Fe2S2${\rm Fe}_2{\rm S}_2$ phase with β$\beta$‐CuI structure. STM, LEED, and first‐principles calculations identify the structure and show that electronic correlations and magnetic order are important for its stability.
Affan Safeer   +10 more
wiley   +1 more source

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

In Situ Interfacial Assembly of Dynamic Semi‐Interpenetrating Biopolymer Networks for Robust and Mechanically Adaptive Droplet Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A dynamic interfacial semi‐interpenetrating polymer network is constructed by sequential assembly of β‐sheet‐rich SF and CS‐RL. The SF framework provides mechanical strength, while dynamically associated CS‐RL enables local rearrangement, allowing droplets to rapidly reconfigure without loss of interfacial integrity.
Yaping Zhang   +7 more
wiley   +1 more source

Tantalum–Palladium Ultrathin Resistance Hydrogen Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfined Ta‐alloy thin films enable fast, reversible hydrogen sensing by suppressing unwanted phase transitions. A Ta0.88${\rm Ta}_{0.88}$Pd0.12${\rm Pd}_{0.12}$ sensing layer delivers hysteresis‐free detection from ppb to 100% H2${\rm H}_2$ at room temperature.
Folkert Isaäc Bernhard Straus   +2 more
wiley   +1 more source

Method for preparing carbon nano-tube AFM probe based on electromagnetic field

open access: yes, 2010
本发明涉及一种基于电磁场的碳纳米管AFM探针的制备方法,包括以下步骤:建立外加电场下溶液中碳纳米管的介电泳力理论模型;调节常规AFM探针和导电基底之间电压幅值或常规AFM探针和导电基底的间隙,控制常规AFM探针与导电基底间的场强;通过波形信号发生器在常规AFM探针和导电基底间施加交流电场;在光学显微镜监视下,滴加碳纳米管溶液到常规AFM探针和导电基底之间,直至浸没常规AFM探针针尖末端;静置5~50秒后,断开外加交流信号即完成。本发明方法易于控制,制造条件简单,成本低 ...
李明林   +4 more
core  

Controlling Structure and Stability in Ultrathin Ti3C2Tx MXene Multilayers for Hydrogen Gas Barrier Applications

open access: yesAdvanced Functional Materials, EarlyView.
An ultrathin nanocomposite MXene‐based multilayer effectively blocks hydrogen permeation by presenting a tortuous, layered structure. When the MXene is layered with reduced graphene oxide modified with a polycation, the resulting nanocomposite retains its hydrogen gas barrier properties at temperatures as high as 400°C (permeability of 7.13 ± 0.09 × 10−
Yang Hyun Auh   +6 more
wiley   +1 more source

Serum albumin maintains Wnt3a water solubility and activity. [PDF]

open access: yesCommun Biol
Yeo JH   +14 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy