Search Results - "Chumakov, Aleksandr I"

Synchrotron Mössbauer source: trade‐off between intensity and linewidth by Yaroslavtsev, Sergey, Chumakov, Aleksandr I.

“…A synchrotron Mössbauer source (SMS) enables conventional (energy‐domain) Mössbauer spectroscopy at synchrotron radiation facilities. In comparison with…”
Get full text

Lattice Dynamics and Structural Phase Transitions in Eu2O3 by Łażewski, Jan, Sternik, Małgorzata, Jochym, Paweł T, Kalt, Jochen, Stankov, Svetoslav, Chumakov, Aleksandr I, Göttlicher, Jorg, Rüffer, Rudolf, Baumbach, Tilo, Piekarz, Przemysław

“…Using the density functional theory, we study the structural and lattice dynamical properties of europium sesquioxide (Eu2O3) in the cubic, trigonal, and…”
Get full text

Understanding the atomic dynamics and thermodynamics of glasses: Status and outlook by Chumakov, Aleksandr I., Monaco, Giulio

“…The heat capacity of glasses at temperatures of about ~10K for a long time was considered to be anomalously higher than that of the corresponding crystals. The…”
Get full text

Pressure tuning of charge ordering in iron oxide by Ovsyannikov, Sergey V., Bykov, Maxim, Bykova, Elena, Glazyrin, Konstantin, Manna, Rudra Sekhar, Tsirlin, Alexander A., Cerantola, Valerio, Kupenko, Ilya, Kurnosov, Alexander V., Kantor, Innokenty, Pakhomova, Anna S., Chuvashova, Irina, Chumakov, Aleksandr I., Rüffer, Rudolf, McCammon, Catherine, Dubrovinsky, Leonid S.

“…A Verwey-type charge-ordering transition in magnetite at 120 K leads to the formation of linear units of three iron ions with one shared electron, called…”
Get full text

Relatively oxidized conditions for diamond formation at Udachnaya (Siberia) by Faccincani, Luca, Cerantola, Valerio, Nestola, Fabrizio, Nimis, Paolo, Ziberna, Luca, Pasqualetto, Leonardo, Chumakov, Aleksandr I., Harris, Jeffrey W., Coltorti, Massimo

“…Thanks to the physical strength of diamonds and their relatively unreactive chemical nature, their mineral inclusions may remain exceptionally preserved from…”
Get full text

Variations in the Magnetic Properties of Meteoritic Cloudy Zone by Claire I. O. Nichols, James F. J. Bryson, Roberts Blukis, Julia Herrero‐Albillos, Florian Kronast, Rudolf Rüffer, Aleksandr I. Chumakov, Richard J. Harrison

“…Abstract Iron and stony‐iron meteorites form the Widmanstätten pattern during slow cooling. This pattern is composed of several microstructures whose…”
Get full text

Phonon confinement and interface lattice dynamics of ultrathin high-k rare earth sesquioxide films: the case of Eu2O3 on YSZ(001) by Stankov, Svetoslav, Merkel, Dániel G, Kalt, Jochen, Göttlicher, Jörg, Łażewski, Jan, Sternik, Małgorzata, Jochym, Paweł T, Piekarz, Przemysław, Baumbach, Tilo, Chumakov, Aleksandr I, Rüffer, Rudolf

“…The spatial confinement of atoms at surfaces and interfaces significantly alters the lattice dynamics of thin films, heterostructures and multilayers…”
Get full text

The Effect of Pulsed Laser Heating on the Stability of Ferropericlase at High Pressures by Georgios Aprilis, Anna Pakhomova, Stella Chariton, Saiana Khandarkhaeva, Caterina Melai, Elena Bykova, Maxim Bykov, Timofey Fedotenko, Egor Koemets, Catherine McCammon, Aleksandr I. Chumakov, Michael Hanfland, Natalia Dubrovinskaia, Leonid Dubrovinsky

“…It is widely accepted that the lower mantle consists of mainly three major minerals—ferropericlase, bridgmanite and calcium silicate perovskite. Ferropericlase…”
Get full text

Monoclinic distortion and magnetic transitions in FeO under pressure and temperature by Li, Xiang, Bykova, Elena, Vasiukov, Denis, Aprilis, Georgios, Chariton, Stella, Cerantola, Valerio, Bykov, Maxim, Müller, Susanne, Pakhomova, Anna, Akbar, Fariia I., Mukhina, Elena, Kantor, Innokenty, Glazyrin, Konstantin, Comboni, Davide, Chumakov, Aleksandr I., McCammon, Catherine, Dubrovinsky, Leonid, Sanchez-Valle, Carmen, Kupenko, Ilya

“…Fe 1- x O, although chemically simple, possesses a complex structural and magnetic phase diagram. The crystal structures of Fe 1- x O and its magnetic…”
Get full text

Relation between the boson peak in glasses and van Hove singularity in crystals by Chumakov, Aleksandr I., Monaco, Giulio, Han, Xuemeng, Xi, Li, Bosak, Alexey, Paolasini, Luigi, Chernyshov, Dmitry, Dyadkin, Vadim

“…We analysed the relation between the boson peak in glasses and the van Hove singularity in crystals. The comparison of the experimental results obtained for…”
Get full text

Vibrational spectrum of the spin crossover complex [Fe(phen)(2)(NCS)(2)] studied by IR and Raman spectroscopy, nuclear inelastic scattering and DFT calculations by Ronayne, Kate L, Paulsen, Hauke, Höfer, Andreas, Dennis, Andrew C, Wolny, Juliusz A, Chumakov, Aleksandr I, Schünemann, Volker, Winkler, Heiner, Spiering, Hartmut, Bousseksou, Azzedine, Gütlich, Philipp, Trautwein, Alfred X, McGarvey, John J

“…The vibrational modes of the low-spin and high-spin isomers of the spin crossover complex [Fe(phen)(2)(NCS)(2)] (phen = 1,10-phenanthroline) have been measured…”
Get more information

Hard-X-Ray Spectroscopy with a Spectrographic Approach by Chumakov, Aleksandr I., Shvyd’ko, Yuri, Sergueev, Ilya, Bessas, Dimitrios, Rüffer, Rudolf

“…Hard-x-ray spectroscopy relies on a suite of modern techniques for studies of vibrational, electronic, and magnetic excitations in condensed matter. At…”
Get full text

Superradiance of an ensemble of nuclei excited by a free electron laser by Chumakov, Aleksandr I., Baron, Alfred Q. R., Sergueev, Ilya, Strohm, Cornelius, Leupold, Olaf, Shvyd’ko, Yuri, Smirnov, Gennadi V., Rüffer, Rudolf, Inubushi, Yuichi, Yabashi, Makina, Tono, Kensuke, Kudo, Togo, Ishikawa, Tetsuya

“…In 1954 Dicke predicted the accelerated initial decay of multiple atomic excitations 1 , laying the foundation for the concept of superradiance. Further…”
Get full text

Space Charge-Limited Current Transport Mechanism in Crossbar Junction Embedding Molecular Spin Crossovers by Cucinotta, Giuseppe, Poggini, Lorenzo, Giaconi, Niccolò, Cini, Alberto, Gonidec, Mathieu, Atzori, Matteo, Berretti, Enrico, Lavacchi, Alessandro, Fittipaldi, Maria, Chumakov, Aleksandr I, Rüffer, Rudolf, Rosa, Patrick, Mannini, Matteo

“…Spin crossover complexes are among the most studied classes of molecular switches and have attracted considerable attention for their potential technological…”
Get full text

Heme protonation affects iron-NO binding in the NO transport protein nitrophorin by Auerbach, Hendrik, Faus, Isabelle, Rackwitz, Sergej, Wolny, Juliusz A., Chumakov, Aleksandr I., Knipp, Markus, Walker, F. Ann, Schünemann, Volker

“…The nitrophorins (NPs) comprise an unusual group of heme proteins with stable ferric heme iron nitric oxide (Fe-NO) complexes. They are found in the salivary…”
Get full text

Lattice dynamics in spin-crossover nanoparticles through nuclear inelastic scattering by Félix, Gautier, Mikolasek, Mirko, Peng, Haonan, Nicolazzi, William, Molnár, Gábor, Chumakov, Aleksandr I., Salmon, Lionel, Bousseksou, Azzedine

“…We used nuclear inelastic scattering (NIS) to investigate the lattice dynamics in [Fe(pyrazine) (Ni(CN) sub(4))] spin crossover nanoparticles. The vibrational…”
Get full text

Synergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO3 composite multiferroic by Lengyel, Attila, Bazsó, Gábor, Chumakov, Aleksandr I., Nagy, Dénes L., Hegedűs, Gergő, Bessas, Dimitrios, Horváth, Zsolt E., Nemes, Norbert M., Gracheva, Maria A., Szilágyi, Edit, Sajti, Szilárd, Merkel, Dániel G.

“…Depth dependence of the metamagnetic phase transition was determined on a single or combined external stimulus such as heat, magnetic or electric fields…”
Get full text

A high spatial resolution synchrotron Mössbauer study of the Tazewell IIICD and Esquel pallasite meteorites by Blukis, Roberts, Rüffer, Rudolf, Chumakov, Aleksandr I., Harrison, Richard J.

“…Metallic phases in the Tazewell IIICD iron and Esquel pallasite meteorites were examined using 57Fe synchrotron Mössbauer spectroscopy. Spatial resolution of…”
Get full text

Design simulations of a horizontally deflecting high‐heat‐load monochromator by Brumund, Philipp, Reyes-Herrera, Juan, Detlefs, Carsten, Morawe, Christian, Sanchez del Rio, Manuel, Chumakov, Aleksandr I.

“…The performance of a liquid‐nitrogen‐cooled high‐heat‐load monochromator with a horizontal scattering plane has been analysed, aiming to preserve the high…”
Get full text

Nuclear quantum memory for hard x-ray photon wave packets by Velten, Sven, Bocklage, Lars, Zhang, Xiwen, Schlage, Kai, Panchwanee, Anjali, Sadashivaiah, Sakshath, Sergeev, Ilya, Leupold, Olaf, Chumakov, Aleksandr I, Kocharovskaya, Olga, Röhlsberger, Ralf

“…Optical quantum memories are key elements in modern quantum technologies to reliably store and retrieve quantum information. At present, they are conceptually…”
Get full text