RSS 1.0Physics and Astronomy publications (MU)
Items in this collection are the scholarly output of the Department of Physics and Astronomy faculty, staff, and students, either alone or as co-authors, and which may or may not have been published in an alternate format. Items may contain more than one file type.
Items in MOspace are protected by copyright, with all rights reserved, unless otherwise indicated.
Recent Submissions
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Single-molecule observation of nucleotide induced conformational changes in basal SecA-ATP hydrolysis
(2018)SecA is the critical adenosine triphosphatase that drives preprotein transport through the translocon, SecYEG, in Escherichia coli. This process is thought to be regulated by conformational changes of specific domains of ... -
Activated carbon monoliths for methane storage : abstract submitted for the MAR12 Meeting of The American Physical Society
(2011)Abstract submitted for the MAR12 Meeting of The American Physical Society: The use of adsorbent storage media for natural gas (methane) vehicles allows for the use of non-cylindrical tanks due to the decreased pressure at ... -
Glass slides and coverslips for microscopy : protocol
(2015)"It is important that the glass slides and coverslips used in microscopy experiments be extremely clean. Although commercially available coverslips and slides look clean, especially when out of a new box, they may have a ... -
Glass is a viable substrate for precision force microscopy of membrane proteins
(2015)Though ubiquitous in optical microscopy, glass has long been overlooked as a specimen supporting surface for high resolution atomic force microscopy (AFM) investigations due to its roughness. Using bacteriorhodopsin from ... -
Glass is a viable substrate for atomic force microscopy of membrane proteins : abstract submitted for the PSF13 Meeting of the American Physical Society
(2013)Abstract submitted for the PSF13 Meeting of The American Physical Society: Since its invention in the mid-1980s, the atomic force microscope (AFM) has become an invaluable complementary tool for studying membrane proteins ... -
Glass : a multi-platform specimen supporting substrate for precision single molecule studies of membrane proteins : [abstract]
(2015)Abstract in program book: High resolution (~ 1 nm lateral resolution) biological AFM imaging has been carried out almost exclusively using freshly cleaved mica as a specimen supporting surface, but mica suffers from a ... -
Glass is a viable substrate for atomic force microscopy of membrane proteins : [abstract]
(2014)Abstract in program book: Since its invention in the mid-1980s, the atomic force microscope (AFM) has become an invaluable complementary tool for studying membrane proteins in near-native environments. Historically, mica ... -
The hessian blob algorithm : precise particle detection in atomic force microscopy imagery
(2018)Imaging by atomic force microscopy (AFM) offers high-resolution descriptions of many biological systems; however, regardless of resolution, conclusions drawn from AFM images are only as robust as the analysis leading to ... -
Spin accumulation from interlayer scattering in semiconductor bilayers
(arXiv, 2011-02)Electrons in double-layer semiconductor heterostructures experience two types of spin- orbit interaction: one arises within each layer from the lack of bulk inversion symmetry and/or externally applied electric fields; the ... -
Drude weight, plasmon dispersion, and a.c. conductivity in doped graphene sheets
(arXiv, 2011-01)We demonstrate that the plasmon frequency and Drude weight of the electron liquid in a doped graphene sheet are strongly renormalized by electron-electron interactions even in the long-wavelength limit. This e ffect is ... -
Spin Drag in Ultracold Fermi Mixtures with Repulsive Interactions
(arXiv, 2010-12)We calculate the spin-drag relaxation rate for a two-component ultracold atomic Fermi gas with positive scattering length between the two spin components. In one dimension we find that it vanishes linearly with temperature. ... -
D'yakonov-Perel' spin relaxation for degenerate electrons in the electron-hole liquid
(arXiv, 2010-10)We present an analytical study of the D'yakonov-Perel' spin relaxation time for degenerate electrons in a photo-excited electron-hole liquid in intrinsic semiconductors exhibiting a spin-split band structure. The ... -
Plasmon mass and Drude weight in strongly spin-orbit-coupled 2D electron gases
(arXiv, 2010-10)Spin-orbit-coupled two-dimensional electron gases (2DEGs) are a textbook example of helical Fermi liquids, i.e. quantum liquids in which spin (or pseudospin) and momentum degrees-of-freedom at the Fermi surface have a ... -
Viscous corrections to the resistance of nano-junctions: a dispersion relation approach
(arXiv, 2011-01)It is well known that the viscosity of a homogeneous electron liquid diverges in the limits of zero frequency and zero temperature. A nanojunction breaks translational invariance and necessarily cuts off this divergence. ... -
The quantum mechanics of electric conduction in crystals
(American Association of Physics Teachers, 2010-09)We introduce a model of electrons incident on a one-dimensional periodic potential and show that conduction is a result of the interference of different parts of an electron wave that bounce multiple times through a series ... -
Response properties of III-V dilute magnetic semiconductors: interplay of disorder, dynamical electron-electron interactions and band-structure effects
(arXiv, 2011-01)A theory of the electronic response in spin and charge disordered media is developed with the particular aim to describe III-V dilute magnetic semiconductors like GaMnAs. The theory combines a detailed k.p description of ... -
Localized diffusive motion on two different time scales in solid alkane nanoparticles
(Institute of Physics, 2010-10)High-energy-resolution quasielastic neutron scattering on three complementary spectrometers has been used to investigate molecular diffusive motion in solid nano- to bulk-sized particles of the alkane n-C32H66. The ... -
Molecular Hydrogen in the Ring Nebula: Clumpy Photodissociation Regions
(University of Chicago Press, 2003-02)We present a 0 .65 resolution H2 1-0 S(1) 2.122 mm image of the Ring Nebula (NGC 6720), which was taken with the Near Infrared Imager at the WIYN 3.5 m telescope on Kitt Peak. The high resolution of the H2 observation is ... -
The Dust Ring of Luminous Blue Variable Candidate HD 168625: Infrared Observations and Model Calculations
(Institute of Physics, 2003-12)We present a 2.218 lm image from the Hubble Space Telescope/Near Infrared Camera and Multi-Object Spectrometer (NICMOS) and a 55 lm image from ISOPHOT of the dust ring surrounding the luminous blue variable (LBV) candidate ... -
Processing of Presolar Grains around Post-Asymptotic Giant Branch Stars: Silicon Carbide as the Carrier of the 21 Micron Feature
(Institute of Physics, 2004-01)Some proto-planetary nebulae (PPNs) exhibit an enigmatic feature in their infrared spectra at ~21 μm. This feature is not seen in the spectra of either the precursors to PPNs, the asymptotic giant branch (AGB) stars, or ...