Search Results - "Gunnlaugsson, Haraldur P"

Interface induced out-of-plane magnetic anisotropy in magnetoelectric BiFeO3-BaTiO3 superlattices by Lazenka, Vera, Jochum, Johanna K., Lorenz, Michael, Modarresi, Hiwa, Gunnlaugsson, Haraldur P., Grundmann, Marius, Van Bael, Margriet J., Temst, Kristiaan, Vantomme, André

“…Room temperature magnetoelectric BiFeO3-BaTiO3 superlattices with strong out-of-plane magnetic anisotropy have been prepared by pulsed laser deposition. We…”
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Local and long-range atomic/magnetic structure of non-stoichiometric spinel iron oxide nanocrystallites by Andersen, Henrik L, Frandsen, Benjamin A, Gunnlaugsson, Haraldur P, Jørgensen, Mads R V, Billinge, Simon J L, Jensen, Kirsten M Ø, Christensen, Mogens

“…Spinel iron oxide nanoparticles of different mean sizes in the range 10-25 nm have been prepared by surfactant-free up-scalable near- and super-critical…”
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A sink for methane on Mars? The answer is blowing in the wind by Knak Jensen, Svend J., Skibsted, Jørgen, Jakobsen, Hans J., ten Kate, Inge L., Gunnlaugsson, Haraldur P., Merrison, Jonathan P., Finster, Kai, Bak, Ebbe, Iversen, Jens J., Kondrup, Jens C., Nørnberg, Per

“…•Mars wind erosion is simulated by tumbling quartz (SiO2) and olivine along with CH4.•Tumbling of SiO2 and olivine along with CH4 leads to consumption of…”
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Magnetic Structure and Strain State in Fe/V Superlattices Studied by 57Fe+ Emission and Conversion Electron Mössbauer Spectroscopy by Mølholt, Torben E., Ólafsson, Sveinn, Gunnlaugsson, Haraldur P., Qi, Bingcui, Johnston, Karl, Mantovan, Roberto, Masenda, Hilary, Bharuth-Ram, Krish, Gíslason, Hafliði P, Langouche, Guido, Naidoo, Deena

“…The magnetic properties of the Fe/V superlattices were studied by conventional Conversion Electron Mössbauer Spectroscopy (CEMS) and online 57Fe+ emission…”
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X-Ray Diffraction and Mössbauer Spectroscopy Studies of Pressure-Induced Phase Transitions in a Mixed-Valence Trinuclear Iron Complex by Madsen, Solveig R., Gunnlaugsson, Haraldur P., Moggach, Stephen A., Eikeland, Espen, Wu, Lai-Chin, Leupold, Olaf, Overgaard, Jacob, Iversen, Bo B.

“…The mixed‐valence complex Fe3O(cyanoacetate)6(H2O)3 (1) has been studied by single‐crystal X‐ray diffraction analysis at pressures up to 5.3(1) GPa and by…”
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Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO3 Thin Films Studied by Emission Mössbauer Spectroscopy by Heiniger-Schell, Juliana, Bharuth-Ram, Krish, Naicker, Kimara, Masondo, Vusumuzi, Dang, Thien Thanh, Escobar, Marianela, Díaz-Guerra, Carlos, Marschick, Georg, Masenda, Hilary, Gunnlaugsson, Haraldur P., Qi, Bingcui, Unzueta, Iraultza, Ólafsson, Sveinn, Adhikari, Rajdeep, Peters, Gerrard, Naidoo, Deena, Schaaf, Peter, Zyabkin, Dmitry, Johnston, Karl, Becker, Sven, Jakob, Gerhard

“…Emission 57Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive 57Mn+ ions, has been used to study the temperature dependence of the…”
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Anisotropy of the Electric Field Gradient in Two-Dimensional α-MoO3 Investigated by 57Mn(57Fe) Emission Mössbauer Spectroscopy by Schell, Juliana, Zyabkin, Dmitry, Bharuth-Ram, Krish, Gonçalves, João N., Díaz-Guerra, Carlos, Gunnlaugsson, Haraldur P., Martín-Luengo, Aitana Tarazaga, Schaaf, Peter, Bonanni, Alberta, Masenda, Hilary, Dang, Thien Thanh, Mølholt, Torben E., Ólafsson, Sveinn, Unzueta, Iraultza, Mantovan, Roberto, Johnston, Karl, Gíslason, Hafliði P., Krastev, Petko B., Naidoo, Deena, Qi, Bingcui

“…Van der Waals α-MoO3 samples offer a wide range of attractive catalytic, electronic, and optical properties. We present herein an emission Mössbauer…”
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A Comprehensive Investigation on Iron Cycling in a Freshwater Seep Including Microscopy, Cultivation and Molecular Community Analysis by Bruun, Anne-Mette, Finster, Kai, Gunnlaugsson, Haraldur P., Nørnberg, Per, Friedrich, Michael W.

“…Iron reduction and oxidation, as well as the microbial community involved in these processes, were investigated in a small pond that is continuously fed by…”
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Temperature, pressure, and wind instrumentation in the Phoenix meteorological package by Taylor, Peter A., Catling, David C., Daly, Mike, Dickinson, Cameron S., Gunnlaugsson, Haraldur P., Harri, Ari-Matti, Lange, Carlos F.

“…The meteorological package (MET) on the Phoenix Lander is designed to provide information on the daily and seasonal variations in Mars near‐polar weather…”
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Correlation between Alkaline Earth Diffusion and Fragility of Silicate Glasses by Smedskjaer, Morten M, Yue, Yuanzheng, Deubener, Joachim, Gunnlaugsson, Haraldur P

“…We have studied the correlation between liquid fragility and the inward diffusion (from surface toward interior) of alkaline earth ions in the…”
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Search for magnetic minerals in Martian rocks: Overview of the Rock Abrasion Tool (RAT) magnet investigation on Spirit and Opportunity by Goetz, Walter, Leer, Kristoffer, Gunnlaugsson, Haraldur P., Bartlett, Paul, Basso, Brandon, Bell, Jim, Bertelsen, Preben, Binau, Charlotte S., Chu, Phillip C., Gorevan, S., Hansen, Mikkel F., Hviid, Stubbe F., Kinch, Kjartan M., Klingelhöfer, Göstar, Kusack, Alastair, Madsen, Morten B., Ming, Douglas W., Morris, Richard V., Mumm, Erik, Myrick, Tom, Olsen, Malte, Squyres, Steven W., Wilson, Jack, Yen, Albert

“…The Rock Abrasion Tool (RAT) on board the Mars Exploration Rovers (MER) is a grinding tool designed to remove dust coatings and/or weathering rinds from rocks…”
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Modifying glass surfaces via internal diffusion by Smedskjaer, Morten M., Yue, Yuanzheng, Deubener, Joachim, Gunnlaugsson, Haraldur P., Mørup, Steen

“…The surface chemistry and structure of iron-bearing silicate glasses have been modified by means of heat-treatment around the glass transition temperature…”
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Indication of drier periods on Mars from the chemistry and mineralogy of atmospheric dust by Klingelhöfer, Göstar, Goetz, Walter, Hviid, Stubbe F, Olsen, Malte, Madsen, Daniel E, Rieder, Rudolf, Schröder, Christian, Gellert, Ralf, de Souza, Paulo A, Kinch, Kjartan M, Ming, Douglas W, Morris, Richard V, Rodionov, Daniel S, Binau, Charlotte S, Madsen, Morten B, Bertelsen, Preben, Squyres, Steve W, Wdowiak, Tom, Gunnlaugsson, Haraldur P, Yen, Albert

“…The ubiquitous atmospheric dust on Mars is well mixed by periodic global dust storms, and such dust carries information about the environment in which it once…”
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Characterization of barren, granitic soils from the Nubian Desert (SW Egypt) by 57Fe Mössbauer spectroscopy by Hassan, Kamaleldin M., Gunnlaugsson, Haraldur P.

“…Fe Mössbauer spectroscopy - a versatile technique involving the recoil-free, resonant absorption and emission of nuclear gamma (γ) rays by the iron-57 isotope…”
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Controls on iron mobilisation from volcanic ash at low pH: Insights from dissolution experiments and Mössbauer spectroscopy by Maters, Elena C., Delmelle, Pierre, Gunnlaugsson, Haraldur P.

“…The deposition of volcanic ash from explosive eruptions to the surface ocean is a source of iron (Fe) for marine phytoplankton. However, the factors that…”
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eMIL: Advanced emission Mössbauer spectrometer for measurements in versatile conditions by Zyabkin, Dmitry V., Vetter, Ulrich, Linderhof, Fredericus M.A., Gunnlaugsson, Haraldur P., Schaaf, Peter

“…The current work presents a contemporary design of an advanced emission Mössbauer Spectrometer: eMIL equipped with a parallel-plate avalanche detector, which…”
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Production of reactive oxygen species from abraded silicates. Implications for the reactivity of the Martian soil by Bak, Ebbe N., Zafirov, Kaloyan, Merrison, Jonathan P., Jensen, Svend J. Knak, Nørnberg, Per, Gunnlaugsson, Haraldur P., Finster, Kai

“…•Quartz abraded by saltation can lead to a production of ⋅OH and H2O2 in water.•The composition of the atmosphere regulates the formation of reactive oxygen…”
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Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO[sub.3] Thin Films Studied by Emission Mössbauer Spectroscopy by Heiniger-Schell, Juliana, Bharuth-Ram, Krish, Naicker, Kimara, Masondo, Vusumuzi, Dang, Thien Thanh, Escobar, Marianela, Díaz-Guerra, Carlos, Marschick, Georg, Masenda, Hilary, Gunnlaugsson, Haraldur P, Qi, Bingcui, Unzueta, Iraultza, Ólafsson, Sveinn, Adhikari, Rajdeep, Peters, Gerrard, Naidoo, Deena, Schaaf, Peter, Zyabkin, Dmitry, Johnston, Karl, Becker, Sven, Jakob, Gerhard

“…Emission [sup.57]Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive [sup.57]Mn[sup.+] ions, has been used to study the temperature…”
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Defects in Hydrothermally Synthesized LiFePO 4 and LiFe 1-x Mn x PO 4 Cathode Materials by Jensen, Kirsten M. Ø., Christensen, Mogens, Gunnlaugsson, Haraldur P., Lock, Nina, Bøjesen, Espen D., Proffen, Thomas, Iversen, Bo B.

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Characterization of barren, granitic soils from the Nubian Desert (SW Egypt) by 57 Fe Mössbauer spectroscopy by Hassan, Kamaleldin M., Gunnlaugsson, Haraldur P.

“…Abstract 57 Fe Mössbauer spectroscopy - a versatile technique involving the recoil-free, resonant absorption and emission of nuclear gamma (γ) rays by the…”
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