Search Results - "Brune, H."

Magnetic remanence in single atoms by Donati, F., Rusponi, S., Stepanow, S., Wäckerlin, C., Singha, A., Persichetti, L., Baltic, R., Diller, K., Patthey, F., Fernandes, E., Dreiser, J., Šljivančanin, Ž., Kummer, K., Nistor, C., Gambardella, P., Brune, H.

“…A permanent magnet retains a substantial fraction of its saturation magnetization in the absence of an external magnetic field. Realizing magnetic remanence in…”
Get full text

Engineering atomic-scale magnetic fields by dysprosium single atom magnets by Singha, A., Willke, P., Bilgeri, T., Zhang, X., Brune, H., Donati, F., Heinrich, A. J., Choi, T.

“…Atomic scale engineering of magnetic fields is a key ingredient for miniaturizing quantum devices and precision control of quantum systems. This requires a…”
Get full text

Hydroxyl radicals from secondary organic aerosol decomposition in water by Tong, Haijie, Arangio, Andrea M, Lakey, Pascale S. J, Berkemeier, Thomas, Liu, Fobang, Kampf, Christopher J, Brune, William H, Pöschl, Ulrich, Shiraiwa, Manabu

“…We found that ambient and laboratory-generated secondary organic aerosols (SOA) form substantial amounts of OH radicals upon interaction with liquid water,…”
Get full text

Real-time measurements of secondary organic aerosol formation and aging from ambient air in an oxidation flow reactor in the Los Angeles area by Ortega, Amber M, Hayes, Patrick L, Peng, Zhe, Palm, Brett B, Hu, Weiwei, Day, Douglas A, Li, Rui, Cubison, Michael J, Brune, William H, Graus, Martin, Warneke, Carsten, Gilman, Jessica B, Kuster, William C, de Gouw, Joost, Gutiérrez-Montes, Cándido, Jimenez, Jose L

“…Field studies in polluted areas over the last decade have observed large formation of secondary organic aerosol (SOA) that is often poorly captured by models…”
Get full text

In situ secondary organic aerosol formation from ambient pine forest air using an oxidation flow reactor by Palm, Brett B, Campuzano-Jost, Pedro, Ortega, Amber M, Day, Douglas A, Kaser, Lisa, Jud, Werner, Karl, Thomas, Hansel, Armin, Hunter, James F, Cross, Eben S, Kroll, Jesse H, Peng, Zhe, Brune, William H, Jimenez, Jose L

“…An oxidation flow reactor (OFR) is a vessel inside which the concentration of a chosen oxidant can be increased for the purpose of studying SOA formation and…”
Get full text

Non-OH Chemistry in Oxidation Flow Reactors for the Study of Atmospheric Chemistry Systematically Examined by Modeling by Peng, Zhe, Day, Douglas A., Ortega, Amber M., Palm, Brett B., Hu, Weiwei, Stark, Harald, Li, Rui, Tsigaridis, Kostas, Brune, William H., Jimenez, Jose L.

“…Oxidation flow reactors (OFRs) using low-pressure Hg lamp emission at 185 and 254 nm produce OH radicals efficiently and are widely used in atmospheric…”
Get full text

Origin of Perpendicular Magnetic Anisotropy and Large Orbital Moment in Fe Atoms on MgO by Baumann, S, Donati, F, Stepanow, S, Rusponi, S, Paul, W, Gangopadhyay, S, Rau, I G, Pacchioni, G E, Gragnaniello, L, Pivetta, M, Dreiser, J, Piamonteze, C, Lutz, C P, Macfarlane, R M, Jones, B A, Gambardella, P, Heinrich, A J, Brune, H

“…We report on the magnetic properties of individual Fe atoms deposited on MgO(100) thin films probed by x-ray magnetic circular dichroism and scanning tunneling…”
Get full text

Secondary organic aerosol formation and primary organic aerosol oxidation from biomass-burning smoke in a flow reactor during FLAME-3 by Ortega, A. M, Day, D. A, Cubison, M. J, Brune, W. H, Bon, D, de Gouw, J. A, Jimenez, J. L

“…We report the physical and chemical effects of photochemically aging dilute biomass-burning smoke. A "potential aerosol mass" (PAM) flow reactor was used with…”
Get full text

Effect of oxidant concentration, exposure time, and seed particles on secondary organic aerosol chemical composition and yield by Lambe, A. T, Chhabra, P. S, Onasch, T. B, Brune, W. H, Hunter, J. F, Kroll, J. H, Cummings, M. J, Brogan, J. F, Parmar, Y, Worsnop, D. R, Kolb, C. E, Davidovits, P

“…We performed a systematic intercomparison study of the chemistry and yields of secondary organic aerosol (SOA) generated from OH oxidation of a common set of…”
Get full text

Technical Note: Effect of varying the λ = 185 and 254 nm photon flux ratio on radical generation in oxidation flow reactors by Rowe, Jake P., Lambe, Andrew T., Brune, William H.

“…Oxidation flow reactors (OFRs) complement environmental smog chambers as a portable, low-cost technique for exposing atmospheric compounds to oxidants such as…”
Get full text

Magnetic moment and anisotropy of individual Co atoms on graphene by Donati, F, Dubout, Q, Autès, G, Patthey, F, Calleja, F, Gambardella, P, Yazyev, O V, Brune, H

“…We report on the magnetic properties of single Co atoms on graphene on Pt(111). By means of scanning tunneling microscopy spin-excitation spectroscopy, we…”
Get full text

Physical properties of secondary photochemical aerosol from OH oxidation of a cyclic siloxane by Janechek, Nathan J, Marek, Rachel F, Bryngelson, Nathan, Singh, Ashish, Bullard, Robert L, Brune, William H, Stanier, Charles O

“…Cyclic volatile methyl siloxanes (cVMS) are high-production chemicals present in many personal care products. They are volatile, hydrophobic, and relatively…”
Get full text

Relationship between Oxidation Level and Optical Properties of Secondary Organic Aerosol by Lambe, Andrew T., Cappa, Christopher D., Massoli, Paola, Onasch, Timothy B., Forestieri, Sara D., Martin, Alexander T., Cummings, Molly J., Croasdale, David R., Brune, William H., Worsnop, Douglas R., Davidovits, Paul

“…Brown carbon (BrC), which may include secondary organic aerosol (SOA), can be a significant climate-forcing agent via its optical absorption properties…”
Get full text

Valence Orbitals Driving the Spin Dynamics in a Rare-Earth Single-Atom Magnet by Curcella, A, Sblendorio, D, Rusponi, S, Pivetta, M, Patthey, F, Brune, H

“…We combine spin-polarized scanning tunneling microscopy with quantum master equation analysis to investigate the spin dynamics of the single atom magnet Dy on…”
Get full text

Ultraviolet and visible complex refractive indices of secondary organic material produced by photooxidation of the aromatic compounds toluene and m-xylene by Liu, P. F, Abdelmalki, N, Hung, H.-M, Wang, Y, Brune, W. H, Martin, S. T

“…Secondary organic material (SOM) produced by the oxidation of anthropogenic volatile organic compounds can be light-absorbing (i.e., brown carbon). Spectral…”
Get full text

Tailoring the magnetism of Co atoms on graphene through substrate hybridization by Donati, F, Gragnaniello, L, Cavallin, A, Natterer, F D, Dubout, Q, Pivetta, M, Patthey, F, Dreiser, J, Piamonteze, C, Rusponi, S, Brune, H

“…We determine the magnetic properties of individual Co atoms adsorbed on graphene (G) with x-ray absorption spectroscopy and magnetic circular dichroism. The…”
Get full text

Modeling the Radical Chemistry in an Oxidation Flow Reactor: Radical Formation and Recycling, Sensitivities, and the OH Exposure Estimation Equation by Li, Rui, Palm, Brett B, Ortega, Amber M, Hlywiak, James, Hu, Weiwei, Peng, Zhe, Day, Douglas A, Knote, Christoph, Brune, William H, de Gouw, Joost A, Jimenez, Jose L

“…Oxidation flow reactors (OFRs) containing low-pressure mercury (Hg) lamps that emit UV light at both 185 and 254 nm (“OFR185”) to generate OH radicals and O3…”
Get full text

Extreme oxidant amounts produced by lightning in storm clouds by Brune, W H, McFarland, P J, Bruning, E, Waugh, S, MacGorman, D, Miller, D O, Jenkins, J M, Ren, X, Mao, J, Peischl, J

“…Lightning increases the atmosphere's ability to cleanse itself by producing nitric oxide (NO), leading to atmospheric chemistry that forms ozone (O ) and the…”
Get full text

Origin of interface magnetism in BiMnO3/SrTiO3 and LaAlO3/SrTiO3 heterostructures by Salluzzo, M, Gariglio, S, Stornaiuolo, D, Sessi, V, Rusponi, S, Piamonteze, C, De Luca, G M, Minola, M, Marré, D, Gadaleta, A, Brune, H, Nolting, F, Brookes, N B, Ghiringhelli, G

“…Possible ferromagnetism induced in otherwise nonmagnetic materials has been motivating intense research in complex oxide heterostructures. Here we show that a…”
Get full text

Daytime HONO vertical gradients during SHARP 2009 in Houston, TX by Wong, K. W, Tsai, C, Lefer, B, Haman, C, Grossberg, N, Brune, W. H, Ren, X, Luke, W, Stutz, J

“…Nitrous Acid (HONO) plays an important role in tropospheric chemistry as a precursor of the hydroxyl radical (OH), the most important oxidizing agent in the…”
Get full text