AFM プローブコミュニティからのニュース

A study supported by our HQ:CSC37 series silicon AFM probesMon Oct 16 2023

Quantifying the viscosity of individual submicrometer semisolid particles is supported by our HQ:CSC37 series silicon AFM probes.

“The diffusion time scale of atmospheric gases into an aerosol is largely governed by its viscosity, which in turn influences heterogeneous chemistry and climate-relevant aerosol effects.”

https://pubs.acs.org/doi/10.1021/acs.analchem.3c01835

#AFMProbes #AtomicForceMicroscopy #viscosity #atmosphericaerosols

Effective Solid Electrolyte Interphase Formation on Lithium Metal Anodes by Mechanochemical Modification - news

Effective Solid Electrolyte Interphase Formation on Lithium Metal Anodes by Mechanochemical ModificationThu Oct 12 2023

Magnetic skyrmions are promising information carriers for dense and energy-efficient information storage owing to their small size, low driving-current density, and topological stability.*

Electrical detection of skyrmions is a crucial requirement to drive skyrmion devices toward applications. The use of a magnetic tunnel junction (MTJ) is commonly suggested for this purpose as MTJs are key spintronic devices for large-scale commercialization that can convert magnetic textures into electrical signals. To date, however, it has been challenging to realize skyrmions in MTJs due to incompatibility between standard skyrmion materials and highly efficient MTJ electrodes.*

In the article “Electrical Detection of Magnetic Skyrmions in a Magnetic Tunnel Junction” Yao Guang, Like Zhang, Junwei Zhang, Yadong Wang, Yuelei Zhao, Riccardo Tomasello, Senfu Zhang, Bin He, Jiahui Li, Yizhou Liu, Jiafeng Feng, Hongxiang Wei, Mario Carpentieri, Zhipeng Hou, Junming Liu, Yong Peng, Zhongming Zeng, Giovanni Finocchio, Xixiang Zhang, John Michael David Coey, Xiufeng Han and Guoqiang Yu report a material stack combining magnetic multilayers, which host 100 nm scale skyrmions, with a perpendicularly magnetized MTJ.*

In their article the authors describe how they combined electrical transport measurements with direct imaging of magnetic texture by magnetic force microscopy (MFM).*

The materials stack is designed to imprint the magnetic domain pattern of the multilayer into the MTJ’s free layer via magnetostatic interactions. The evolution of the magnetic domain pattern is revealed by MFM, which shows that skyrmions can be stabilized in the fabricated MTJ with an appropriate magnetic field.*

The realization of electrical reading of skyrmions using an MTJ opens the route to all-electrical skyrmion devices, which is a crucial step for the development of skyrmionics. *

The technique reported by Yao Guang et al. can further advance the simultaneous optimization of the parameters for skyrmion stabilization and MTJ read-out, thus opening a way to realize skyrmion-based devices such as racetrack memory, logic gates, oscillators, detectors,artificial synapses for neuromorphic computing, and reshuffling devices with an efficient CMOS compatible read-out mechanism.*

The magnetic response was studied using NANOSENSORS™ SuperSharpSilicon™ High Resolution Magnetic Force Microscopy AFM Probes ( SSS-MFMR typical force constant 2.8 N/m) in-phase mode and with a lift height of 30 nm. The transport measurements of MTJ were performed in the PPMS or the MFM that is upgraded with electrical measurement equipment.*

Please have a look at the NANOSENSORS for the full citation and a direct link to the full article.

https://www.nanosensors.com/blog/effective-solid-electrolyte-interphase-formation-on-lithium-metal-anodes-by-mechanochemical-modification/

#skyrmions #magnetictunneljunction #spintronicdevices #MFM探针 #materialsresearch #磁性力调制显微镜 #磁気力顕微鏡用AFMプローブ

Multi75-G AFM probes are used in tapping mode, bimodal AFM, force spectroscopy and energy analysisMon Oct 09 2023

This study investigates the stiffening of the commonly used biodegradable polymer polylactic acid (PLA) by salification with impact on applications such as artificial heart valves. Our Multi75-G AFM probes are used in tapping mode, bimodal AFM, force spectroscopy and energy analysis (power dissipation) to determine changes in material properties. Find out which AFM technique the authors determine the most sensitive!

https://www.mdpi.com/2073-4360/15/3/492

#AFMProbes #AtomicForceMicroscopy #polylacticacid #artificalheartvalves

Intrinsically disordered regions in TRPV2 mediate protein-protein interactionsFri Oct 06 2023

Intrinsically disordered regions in TRPV2 mediate protein-protein interactions

Transient receptor potential (TRP) ion channels are gated by diverse intra- and extracellular stimuli leading to cation inflow (Na+, Ca2+) regulating many cellular processes and initiating organismic somatosensation. * Structures of most TRP channels have been solved. However, structural and sequence analysis showed that ~30% of the TRP channel sequences, mainly the N- and C-termini, […]

Electrical Detection of Magnetic Skyrmions in a Magnetic Tunnel Junction - news

Electrical Detection of Magnetic Skyrmions in a Magnetic Tunnel JunctionWed Oct 04 2023