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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Understanding the asymmetrical thermoelectric performance for discovering promising thermoelectric materials
(American Association for the Advancement of Science, 2019)Thermoelectric modules, consisting of multiple pairs of n- and p-type legs, enable converting heat into electricity and vice versa. However, the thermoelectric performance is often asymmetrical, in that one type outperforms ... -
Conformal symmetry, accelerated observers, and nonlocality
(MDPI AG, 2019)The acceleration transformations form a 4-parameter Abelian subgroup of the conformal group of Minkowski spacetime. The passive interpretation of acceleration transformations leads to a congruence of uniformly accelerated ... -
Predicting monovalent ion correlation effects in nucleic acids
(American Chemical Society, 2019)Ion correlation and fluctuation can play a potentially significant role in metal ion-nucleic acid interactions. Previous studies have focused on the effects for multivalent cations. However, the correlation and fluctuation ... -
Direct visualization of the E. coli Sec translocase engaging precursor proteins in lipid bilayers
(American Association for the Advancement of Science, 2019)Escherichia coli exports proteins via a translocase comprising SecA and the translocon, SecYEG. Structural changes of active translocases underlie general secretory system function, yet directly visualizing dynamics has ... -
Multiple stochastic pathways in forced peptide-lipid membrane detachment
(Nature Publishing Group, 2019)We have used high resolution AFM based dynamic force spectroscopy to investigate peptide-lipid membrane interactions by measuring the detachment (last-rupture) force distribution, P(F), and the corresponding force dependent ... -
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)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)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 not ... -
Spin Drag in Ultracold Fermi Mixtures with Repulsive Interactions
(arXiv, 2010)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)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)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)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)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 ...