Results 61 to 70 of about 33,568 (279)

What is the orientation of the tip in a scanning tunneling microscope? [PDF]

, 2015
We introduce a statistical correlation analysis method to obtain information on the local geometry and orientation of the tip used in scanning tunneling microscopy (STM) experiments based on large scale simulations.
Mándi, Gábor, Palotás, Krisztián, Teobaldi, Gilberto   +2 more
core   +2 more sources

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Exploring the biomechanical complexity of glioblastoma spheroids and organoids with co-localized Brillouin and Raman microspectroscopy

Biochemistry and Biophysics Reports
Brillouin microscopy allows mechanical investigations of biological materials at the subcellular level and can be integrated with Raman spectroscopy for simultaneous chemical mapping, thus enabling a more comprehensive interpretation of biomechanics. The
Roberta Galli, Jan Rix, Tina Leonidou, Katrin Kirsche, Edmund Koch, Achim Temme, Ilker Y. Eyüpoglu, Ortrud Uckermann   +7 more
doaj   +1 more source

Strain-induced partially flat band, helical snake states, and interface superconductivity in topological crystalline insulators [PDF]

, 2014
Topological crystalline insulators in IV-VI compounds host novel topological surface states consisting of multi-valley massless Dirac fermions at low energy.
AY Sipatov, B Roy, C Fang, D Agassi, DB Chklovskii, Evelyn Tang, F Guinea, G Springholz, H Weng, J Liu, J Liu, J Pereiro, JE Moore, JL Mañes, K Murase, L Fu, L Fu, Liang Fu, LS Palatnik, M Kargarian, M Levin, M Serbyn, MJ Weber, MZ Hasan, N Levy, NB Kopnin, NY Fogel, NY Fogel, NY Fogel, OA Mironov, OI Yuzephovich, P Barone, P Chaikin, P Dziawa, P Ghaemi, R Yoshimi, RSK Mong, SY Xu, TH Hsieh, VA Khodel, VM Pereira, W Zhang, XL Qi, Y Okada, Y Tanaka, Y Tanaka   +45 more
core   +2 more sources

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Scanning tunneling microscopy of surfaces of half-metals: an ab-initio study on NiMnSb(001)

, 2005
We present a first-principles study of the unreconstructed (001) surfaces of the half-metallic ferromagnet NiMnSb. Both terminations (MnSb and Ni) are considered. We find that half-metallicity is lost at the surfaces.
Bihlmayer, Gustav, Blügel, Stefan, Ležaić, Marjana, Mavropoulos, Phivos   +3 more
core   +1 more source

Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays [PDF]

, 2001
The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE).
Bland, J.A.C., Cambril, E., Chen, Y., Gardiner, S.M., Hirohata, A., Klaui, M., Lopez-Diaz, L., Rothman, J., Rousseaux, F., Tselepi, M., Xu, Y.B.   +10 more
core   +1 more source

Assessing corneal biomechanics with Brillouin spectro-microscopy

Faraday Discussions, 2016
A new Brillouin spectro-microscope was designed and built to investigate the mechanical properties of bovine and human corneas. This instrument integrates a single-stage virtually imaged phased array spectrometer with a novel adaptive-optics interferometric filter to achieve unprecedented rejection of the elastic background signal.
Guillaume Lepert, Ricardo M. Gouveia, Che J. Connon, Carl Paterson   +3 more
openaire   +5 more sources

Cryogenic Focused Ion Beam Milling to Investigate the Anisotropic Magnetotransport Properties of Bismuth Microcrystals

Advanced Functional Materials, EarlyView.
The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández, Soraya Sangiao, Claudia Felser, Chandra Shekhar, José Ángel Pardo, Alfonso Ibarra, José María De Teresa   +6 more
wiley   +1 more source

Principal component analysis in application to Brillouin microscopy data

JPhys Photonics
Brillouin microscopy has recently emerged as a new bio-imaging modality that provides information on the microscale mechanical properties of biological materials, cells and tissues.
Hadi Mahmodi, Christopher G Poulton, Mathew N Leslie, Glenn Oldham, Hui Xin Ong, Steven J Langford, Irina V Kabakova   +6 more
doaj   +1 more source