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It is shown that a new kind of information can be extracted from the Fourier transform of negative magnetoresistance (MR) in 2D semiconductor structures. The procedure proposed provides the information on the area distribution function of…

Droplet microfluidics has emerged as a powerful platform allowing a large number of individual reactions to be carried out in spatially distinct microcompartments. Due to their small size, however, the spectroscopic characterisation of…

A new method for highly selective remote sensing of atmospheric trace polar molecular gases is described. Based on infrared/terahertz double resonance spectroscopic techniques, the molecule- specific coincidence between the lines of a CO2…

Atomic Physics · Physics 2012-05-15 Dane J. Phillips , Elizabeth A. Tanner , Frank C. De Lucia , Henry O. Everitt

We present a spatial and wave-vector resolved study of the electronic structure of micron sized ferroelectric domains at the surface of a BaTiO3(001) single crystal. The n-type doping of the BaTiO3 is controlled by in-situ vacuum and oxygen…

Materials Science · Physics 2018-06-12 J. E. Rault , J. Dionot , C. Mathieu , V. Feyer , C. M. Schneider , G. Geneste , N. Barrett

We carried out an experiment in order to obtain the InfraRed (IR) spectra of methyl propionate (CH3CH2COOCH3) in astrochemical conditions and present the IR spectra for future identification of this molecule in the InterStellar Medium…

Astrophysics of Galaxies · Physics 2015-06-23 B. Sivaraman , N. Radhika , A. Das , G. Gopakumar , L. Majumdar , S. K. Chakrabarti , K. P. Subramanian , B. N. Raja Sekhar , M. Hada

Magnetic resonance microimaging (MR mu I) is an outstanding technique for studying water transfers in millimetric bio-based materials in a non-destructive and non-invasive manner. However, depending on the composition of the material,…

Signal Processing · Electrical Eng. & Systems 2024-09-04 Sílvia Mas Garcia , Jean-Michel Roger , Ruzica Ferbus , Denis Lourdin , Corinne C. Rondeau-Mouro

Using a combination of Rietveld and RMC refinement of neutron total scattering data, we find that the 10 K structure of zinc(II) isonicotinate shows strong evidence of static disorder. This disorder takes the form of transverse…

Materials Science · Physics 2011-12-30 Ines E. Collings , Matthew G. Tucker , David A. Keen , Andrew L. Goodwin

Parametrized crystal-field analyses are presented for both the six and seven fold coordinated, C$_{1}$ symmetry Sm$^{3+}$ centers in Y$_{2}$SiO$_{5}$, based on extensive spectroscopic data spanning the infrared to optical regions. Laser…

Materials Science · Physics 2022-06-29 N. L. Jobbitt , J. -P. R. Wells , M. F. Reid

We demonstrate that including the second viscosity of an electron gas in the hydrodynamic model allows for highly accurate modeling of the optical response of heavily doped semiconductors. In our setup, which improves resonance visibility…

We discuss how to analyze the optical conductivity and Raman spectra of multi-orbital systems using the velocity and the Raman vertices in a similar way Raman vertices were used to disentangle nodal and antinodal regions in cuprates. We…

Strongly Correlated Electrons · Physics 2013-03-01 B. Valenzuela , M. J. Calderon , G. Leon , E. Bascones

This study investigates water transport in a polymer electrolyte membrane (PEM) electrolyzer using operando infrared spectroscopic imaging. By testing different H2SO4 anolyte concentrations, it examines electrochemical performance, water…

Soft Condensed Matter · Physics 2025-05-20 Stéphane Chevalier , Meguya Ryu , Jean-Christophe Batsale , Junko Morikawa

Photoemission orbital tomography (POT) is a powerful tool for investigating the orbitals and electronic band structure of oriented layers of organic molecules. In many cases, POT allows conclusions to be drawn regarding the geometric…

Electronic and structural degrees of freedom are often intimately coupled in strongly correlated systems, which result in intriguing macroscopic and microscopic phenomena. Using the well-studied material VO$_2$ as a prototype, here we…

Switchable order parameters in ferroic materials are essential for functional electronic devices, yet disruptions of the ordering can take the form of planar boundaries or defects that exhibit distinct properties. Characterizing the…

Recent measurements of the magnetoresistance (MR) of amorphous superconducting thin films in tilted magnetic fields have displayed several surprising experimental details, in particular a strong dependence of the MR on field angle at low…

Superconductivity · Physics 2015-07-22 Elkana Porat , Yigal Meir

Catalytic engines can use hydrogen peroxide as a chemical fuel in order to drive motion at the microscale. The chemo-mechanical actuation is a complex mechanism based on the interrelation between catalytic reactions and…

Mesoscale and Nanoscale Physics · Physics 2013-11-14 A. Afshar Farniya , M. J. Esplandiu , D. Reguera , A. Bachtold

We report detection of nuclear magnetic resonance (NMR) using an anisotropic magnetoresistive (AMR) sensor. A ``remote-detection'' arrangement was used, in which protons in flowing water were pre-polarized in the field of a superconducting…

Chemical Physics · Physics 2015-05-13 F. Verpillat , M. P. Ledbetter , D. Budker , S. Xu , D. Michalak , C. Hilty , S. Antonijevic , A. Pines , L. -S. Bouchard

By means of three dimensional high-resolution hybrid simulations we study the properties of the magnetic field spectral anisotropies near and beyond ion kinetic scales. By using both a Fourier analysis and a local analysis based on…

Solar and Stellar Astrophysics · Physics 2019-04-18 Simone Landi , Luca Franci , Emanuele Papini , Andrea Verdini , Lorenzo Matteini , Petr Hellinger

We use a spatially resolved, direct spectroscopic probe for electronic structure with an additional sensitivity to chemical compositions to investigate high-quality single crystal samples of La_{1/4}Pr_{3/8}Ca_{3/8}MnO_{3}, establishing the…

Antibody drugs are usually formulated as highly-concentrated solutions, which would easily generate oligomer and aggregation, resulting in loss of efficacy. Although low pH increases the colloidal dispersion of antibodies, acid denaturation…

Biological Physics · Physics 2022-07-15 Yusui Sato , Satoru Nagatoishi , Shintaro Noguchi , Kouhei Tsumoto