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Electrical and magnetic anisotropies in van der Waals multiferroic CuCrP2S6

Fig. 2 from “Electrical and magnetic anisotropies in van der Waals multiferroic CuCrP2S6” by Xiaolei Wang et al.: Electrical measurements of the AFE CCPS indicating local FE polarization and electrical anisotropy. a Phase vs voltage hysteresis loop of CCPS crystal bulk obtained at T = 2 K by PFM, after subtracting the built-in electric field between the sample and substrate. The upper inset diagram indicates the atomic structure of electric field (E) driven FE polarized state. b The microscope picture of our CCPS device with identified a and b axes, along with the scale-up configuration of electrical measurements on the right. c The rectifying J–V characteristics along the a and b axes as positive +10 V bias is poling for 3 min. d The rectification behaviors as increasing the poling voltage to 6 min or longer. e Time dependence of current density along the a and b axes as setting the poling bias +10 V. f The negative rectification along the a axis as the poling voltage is −10 V for 3 min. g The schematic diagram of physical mechanism illustrating the in-plane electrical anisotropy. NANOSENSORS™ conductive and wear resistant Platinum-Silicide PtSi-FM AFM probes were used for the low-temperature piezoresponse force microscopy.

In the field of modern information storage, the physical properties could act as the storage “medium”, such as electric polarization (dipole orientation) of ferroelectric materials,… Read More »Electrical and magnetic anisotropies in van der Waals multiferroic CuCrP2S6

Strong, tough, rapid-recovery, and fatigue-resistant hydrogels made of picot peptide fibres

Fig. 2 from Bin Xue et al. “Strong, tough, rapid-recovery, and fatigue-resistant hydrogels made of picot peptide fibres”: Characterisation of supramolecular and picot GK11 peptide fibres without and with metal Cu2+ coordination. a AFM images of the fibres formed by the self-assembly of GK11 in the absence (top) and presence (bottom) of Cu2+. The graphs below the images correspond to the diameter distributions of the fibres. Scale bar = 1 μm. b, c CD spectrum (b) and FT-IR spectroscopy (c) of the self-assembled GK11 peptide with (GK11/Cu2+) and without Cu2+ (GK11). d As for (a), but for picot fibres (top) and metal ion-clad picot fibres (bottom) formed by GK11 linked with polyacrylamide in the absence and presence of Cu2+. Scale bar = 1 μm. NANOSENSORS PointProbe Plus PPP-SEIHR AFM probes for soft tapping mode were used.

Hydrogels are promising soft materials as tissue engineering scaffolds, stretchable sensors, and soft robotics. * Yet, it remains challenging to develop synthetic hydrogels with mechanical… Read More »Strong, tough, rapid-recovery, and fatigue-resistant hydrogels made of picot peptide fibres

Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films

Supplementary Figure.S15 from “Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films” by Xin Li et al.: (a) MFM images of h-YbFeO3(001)/ YSZ(111), which were measured in the phase-lock mode 100 nm above the surface with a 3×3 m scan area. The gray scale of the images corresponds to the frequency shift, whose full scale is 1 Hz. The arrows indicate the sequence of the applied magnetic field along the c axis of h-YbFeO3 films. (b) Surface topography of h-YbFeO3 films measured by AFM with a 75 nm full grey scale. (c) Magnetic-field dependence of the roughness of the MFM images calculated using the central part of the images in (a). (d) The distribution of magnetic domain sizes extracted from the central part of the images in (a) with reducing magnetic field. All measurements were taken at 12 K. NANOSENSORS PPP-MFMR AFM probes with magnetic coating were used.

Electrical modulation of magnetic states in single-phase multiferroic materials, using domain-wall magnetoelectric (ME) coupling, can be enhanced substantially by controlling the population density of the… Read More »Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films

Single Electrochemical Impacts of Shewanella oneidensis MR-1 Bacteria for Living Cells Adsorption onto a Polarized Ultramicroelectrode Surface

Figure 5 from “Single Electrochemical Impacts of Shewanella oneidensis MR-1 Bacteria for Living Cells Adsorption onto a Polarized Ultramicroelectrode Surface” by Hassiba Smida et al. AFM images recorded in water of (A and C) CF and (B and D) Pt UME surfaces (A and B) before and (C and D) after a chronoamperometry measurement at +0.8 V vs Ag/AgCl in 2 mL of 20 mM K4Fe(CN)6 0.1 M PBS at pH 7.4 as aqueous solution under inert atmosphere (N2) in the presence of 109 cells of living SOMR1 bacteria sample. The circle in white dashed line is added for showing the UME disk on the AFM images. NANOSENSORS uniqprobe qp-SCONT AFM probes were used.

In the past few years, several novel analytical methods with high sensitivity and spatial-temporal resolution that enable qualitative and quantitative analysis at single-cell and subcellular… Read More »Single Electrochemical Impacts of Shewanella oneidensis MR-1 Bacteria for Living Cells Adsorption onto a Polarized Ultramicroelectrode Surface

Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells

by NANOSENSORS
30 May 202330 May 2023
Science & Technology

Figure 1 from “Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells” by Chuanxiao Xiao et al. Experiment schematic. KPFM scans on the cleaved cross-sectional surface. Ultrafast spectroscopy measurements were in both TA and TR setups. NANOSENSORS Platinum-Iridium coated PointProbe Plus PPP-EFM AFM probes were used for the Kelvin Probe Force Microscopy.

Light-induced performance changes in metal halide perovskite solar cells (PSCs) have been studied intensively over the last decade, but little is known about the variation… Read More »Operando Characterizations of Light-Induced Junction Evolution in Perovskite Solar Cells

Happy New Lunar Year of the Rabbit!

by NANOSENSORS
21 January 202315 March 2023
News & Events

Drawing of two rabbits in front of the full moon with happy new lunar year written in the grass surrounding them.

Season’s Greetings from NANOSENSORS AFM probes

by NANOSENSORS
22 December 202215 March 2023
News & Events

Illuminated Christmas tree at night time beside an old building

It is again time to wish all users of our AFM probes Happy Holidays! Enjoy the holiday season with friends and family. We are looking… Read More »Season’s Greetings from NANOSENSORS AFM probes

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