Results 71 to 80 of about 33,568 (279)

Making ARPES Measurements on Corrugated Monolayer Crystals: Suspended Exfoliated Single-Crystal Graphene

, 2011
Free-standing exfoliated monolayer graphene is an ultra-thin flexible membrane, which exhibits out of plane deformation or corrugation. In this paper, a technique is described to measure the band structure of such free-standing graphene by angle-resolved
Alberto Morgante, Andrea Locatelli, Dean Cvetko, H. Yang, Kevin R. Knox, Mehmet B. Yilmaz, Miguel Ángel Niño, Philip Kim, Richard M. Osgood, S. Hüfner, Tevfik Onur Menteş   +10 more
core   +1 more source

Local Thermal Conductivity Patterning in Rotating Lattice Crystals of Anisotropic Sb2S3

Advanced Functional Materials, EarlyView.
Microscale control of thermal conductivity in Sb2S3 is demonstrated via laser‐induced rotating lattice crystals. Thermal conductivity imaging reveals marked thermal transport anisotropy, with the c axis featuring amorphous‐like transport, whereas in‐plane directions (a, b) exhibit 3.5x and 1.7x larger thermal conductivity.
Eleonora Isotta, Rosemary Wynnychenko, Binayak Mukherjee, Jack Kaman, Hrushikesh Sahasrabuddhe, Jiongzhi Zheng, Anubhav Jain, Geoffroy Hautier, Alexandra Zevalkink, Evan Musterman, Volkmar Dierolf, Himanshu Jain, G. Jeffrey Snyder, Oluwaseyi Balogun   +13 more
wiley   +1 more source

Single-shot impulsive stimulated Brillouin microscopy by tailored ultrashort pulses

Journal of the European Optical Society-Rapid Publications
Brillouin microscopy has become an important tool for investigating the mechanical properties of tissue. The recently developed Impulsive Stimulated Brillouin Scattering (ISBS) promises a label-free, non-invasive measurements of viscoelastic properties ...
Krause David, Liebig Leon, Boehm John, Koukourakis Nektarios, Czarske Juergen W.   +4 more
doaj   +1 more source

Anomalous polarization conversion in arrays of ultrathin ferromagnetic nanowires

, 2015
We study optical properties of arrays of ultrathin nanowires by means of the Brillouin scattering of light on magnons. We employ the Stokes/anti-Stokes scattering asymmetry to probe the circular polarization of a local electric field induced inside ...
Belov, Pavel A., Chérif, S. -M., Kivshar, Yuri S., Poddubny, Alexander N., Roussigné, Yves, Slobozhanyuk, Alexei P., Stashkevich, Andrey A., Vidal, Franck, Yagupov, Ilya V., Zheng, Y.   +9 more
core   +3 more sources

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Self-driving microscopy detects the onset of protein aggregation and enables intelligent Brillouin imaging

Nature Communications
The process of protein aggregation, central to neurodegenerative diseases like Huntington’s, is challenging to study due to its unpredictable nature and relatively rapid kinetics.
Khalid A. Ibrahim, Camille Cathala, Carlo Bevilacqua, Lely Feletti, Robert Prevedel, Hilal A. Lashuel, Aleksandra Radenovic   +6 more
doaj   +1 more source

Unconventional magnetism of non-uniform distribution of Co in TiO2 nanoparticles [PDF]

, 2020
High-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) analysis, electron paramagnetic resonance (EPR), X-ray absorption spectroscopy (XAS), magnetic methods, and density-functional theory (DFT) calculations were applied for ...
Boukhvalov, D. W., Galakhov, V. R., Gubkin, A. F., Konev, S. F., Korolev, A. V., Mesilov, V. V., Minin, A. S., Molochnikov, L. S., Murzakaev, A. M., Rosenfeld, E. V., Uimin, M. A., Volegov, A. S., Yermakov, A. Y., Zakharova, G. S.   +13 more
core  

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

Advanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee, Lukas Mielke, Mahmoud Al‐Hussein, Shivam Singh, Karen Schaefer, Borja Rodriguez‐Barea, Qiong Li, Anik Kumar Ghosh, Artur Erbe, Carmen Herrmann, Yana Vaynzof, Andreas Fery, Hendrik Schlicke   +12 more
wiley   +1 more source

Surface and electronic structure of MOCVD-grown Ga(0.92)In(0.08)N investigated by UV and X-ray photoelectron spectroscopies [PDF]

, 2004
The surface and electronic structure of MOCVD-grown layers of Ga(0.92)In(0.08)N have been investigated by means of photoemission. An additional feature at the valence band edge, which can be ascribed to the presence of In in the layer, has been revealed.
B.A. Orlowski, B.J. Kowalski, Beach, Bellaiche, Bermudez, Bermudez, Butcher, Carin, Chen, Chen, Dhesi, Ding, E. Lusakowska, F. Mirabella, Grzegory, Guo, Hunt, I. Grzegory, I.A. Kowalik, J. Ghijsen, J. Kanski, J. Sadowski, Kowalski, Kowalski, Leszczynski, M. Leszczynski, Maruyama, McCluskey, Moulder, Nakamura, Nakamura, O'Donnell, Osamura, P. Perlin, Parker, Pearton, Pereira, Pereira, Perlin, Plucinski, Prabhakaran, Pugh, R.J. Iwanowski, Ryan, S. Porowski, Strasser, Teles, Van de Walle, Vogel, Wang, Watkins, Wetzel, Wright   +52 more
core   +1 more source

‘Oxygen Bound to Magnesium’ as High Voltage Redox Center Causes Sloping of the Potential Profile in Mg‐Doped Layered Oxides for Na‐Ion Batteries

Advanced Functional Materials, EarlyView.
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li, Konstantin Köster, Katherine A. Mazzio, Yanan Sun, Annica I. Freytag, Deniz Wong, Christian Schulz, Götz Schuck, Volodymyr Baran, Alba San Jose Mendez, Marcin Zając, Payam Kaghazchi, Philipp Adelhelm   +12 more
wiley   +1 more source