Wigner Research Centre for Physics

HUN-REN Wigner Fizikai Kutatóközpont (HUN-REN Wigner FK)

A HUN-REN Wigner FK 2012. január 1-től a korábbi MTA KFKI Részecske- és Magfizikai Kutatóintézet és a korábbi MTA Szilárdtestfizikai és Optikai Kutatóintézet egyesülésével jött létre. Jelenleg a Magyar Kutatási Hálózat legnagyobb fizikával foglalkozó kutatóközpontja, illetve a Magyar Tudományos Akadémia Kiválósági Kutatóközpontja. 2013-tól a Kutatóközpont részeként működik a világszínvonalú Wigner Adatközpont is.

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21 to 28 of 28 Results

Collective self-trapping of atoms in a cavity Oct 11, 2023 Dombi, András; Clark, Thomas William; Williams, Francis Ian Bickford; Jessen, Florian; Fortágh, József; Nagy, Dávid; Vukics, András; Domokos, Péter, 2023, "Collective self-trapping of atoms in a cavity", https://hdl.handle.net/21.15109/CONCORDA/9V5CHW, ARP, V1 We study experimentally the optical dipole trapping of a cloud of cold atoms in a high-finesse cavity in the parameter regime where the atomic back-action on the cavity mode is significant. Back-action based effects lead to state selective optical manipulation schemes. We identify a parameter range where the collective back action of the atoms is n...
Recognition-Control and Host–Guest Interactions in High-Symmetry Cocrystals of Fullerenes with Cubane and Mesitylene Sep 28, 2023 Bortel, Gábor; Kováts, Éva; Földes, Dávid; Jakab, Emma; Durkó, Gábor; Pekker, Sándor, 2023, "Recognition-Control and Host–Guest Interactions in High-Symmetry Cocrystals of Fullerenes with Cubane and Mesitylene", https://hdl.handle.net/21.15109/CONCORDA/K1VCIW, ARP, V1 The limited success in the prediction of structure is one of the most serious problems in the engineering of molecular crystals. Here we show that the packing of high-symmetry molecules such as ball-shaped rotating fullerenes, cube-shaped cubane, and octahedral-shaped mesitylene dimers give rise to the formation of cubic cocrystals with easily pred...
A generalized scheme for characterizing orientational correlations in condensed phases of high symmetry molecules: SF6 and C60 Sep 28, 2023 Temleitner, Laszlo, 2023, "A generalized scheme for characterizing orientational correlations in condensed phases of high symmetry molecules: SF6 and C60", https://hdl.handle.net/21.15109/CONCORDA/ZDGWFL, ARP, V1, UNF:6:UTjajACSGnPBG+WxrKsGEA== [fileUNF] Simulated datasets, and source code of the applied programs related to the publication appeared in Journal of Molecular Liquids Volume 341, 1 November 2021, 116916 (https://doi.org/10.1016/j.molliq.2021.116916) The orientational correlation scheme introduced earlier for tetrahedral molecules is extended to being able to classify orientational corre...
Wigner Fizikai Kutatóközpont Szilárdtestfizikai és Optikai Intézet(WIGNER) Sep 26, 2023
Synergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO3 composite multiferroic Jun 28, 2023 Lengyel, Attila; Bazsó, Gábor; Chumakov, Alexandr I.; Nagy, Dénes L.; Hegedűs, Gergő; Bessas, Dimitrios; Horváth, Zsolt E.; Nemes, Norbert M.; Gracheva, Maria A.; Szilágyi, Edit; Sajti, Szilárd; Merkel, Dániel G., 2022, "Synergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO3 composite multiferroic", https://hdl.handle.net/21.15109/CONCORDA/LUA07J, ARP, V2 FeRh based composite multiferroic materials have attracted great scientific interest due to their wide variety of possible applications in future nano device technology. In the recent work, a comprehensive study on the depth dependence of the metamagnetic phase transition in FeRh/BaTiO3 heterostructure is reported by means of single or combined ext...
A Three-Dimensional Analysis of Magnetic Nanopattern Formation in FeRh Thin Films on MgO Substrates: Implications for Spintronic Devices Apr 6, 2022 Merkel, Dániel Géza; Hegedűs, Gergő; Gracheva, Maria; Deák, András; Illés, Levente; Németh Attila; Maccari, Fernando; Radulov, Iliya; Major, Márton; Chumakov. Aleksandr I.; Bessas, Dimitros; Nagy, Dénes Lajos; Zolnai, Zsolt; Graning, Sára; Sájerman, Klára; Szilágyi, Edit; Lengyel, Attila, 2022, "A Three-Dimensional Analysis of Magnetic Nanopattern Formation in FeRh Thin Films on MgO Substrates: Implications for Spintronic Devices", https://hdl.handle.net/21.15109/CONCORDA/LWU9RL, ARP, V2, UNF:6:bgzs99u5U4GqdM9ySXKVTg== [fileUNF] Magnetic nanopatterns were successfully created in FeRh thin film deposited on MgO (100) substrates. Silica and polystyrene spherical masks, nominally 500 and 1000 nm in diameter, respectively were applied on the surface of the sample in order to locally shadow the film against the effect of 110 keV energy neon-ion irradiation with fluences of 1015...
Reversible control of magnetism in FeRh thin films Apr 5, 2022 Merkel, Dániel G.; Lengyel, Attila; Nagy, Dénes Lajos; Németh, Attila; Horváth, Zsolt E.; Bogdán, Csilla; Gracheva, Maria A.; Hegedűs, Gergő; Sajti, Szilárd; Radnóczi Z. György; Szilágyi Edit, 2021, "Reversible control of magnetism in FeRh thin films", https://hdl.handle.net/21.15109/CONCORDA/83J6T0, ARP, V2, UNF:6:Cvr6lrS6zc+AXoY5zRPfYA== [fileUNF] The multilayer of approximate structure MgO(100)/[nFe51Rh49(63 Å)/57Fe51Rh49(46 Å)]10 deposited at 200 °C is primarily of paramagnetic A1 phase and is fully converted to the magnetic B2 phase by annealing at 300 °C for 60 min. Subsequent irradiation by 120 keV Ne+ ions turns the thin film completely to the paramagnetic A1 phase. Repeated annealing...
TOWARDS A METADATA STANDARD FOR LABORATORY MÖSSBAUER SPECTROSCOPY Dec 3, 2021 Nagy, Dénes Lajos; Spiering, Hartmut; Szilágyi Edit, 2021, "TOWARDS A METADATA STANDARD FOR LABORATORY MÖSSBAUER SPECTROSCOPY", https://hdl.handle.net/21.15109/CONCORDA/GRT2CA, ARP, V1 Metadata are data about data. The last 15 years saw an increasing need of assigning metadata to experimental data including spectroscopic ones. This fact was due to the requirement of making scientific publications open-access and, apart from non-proprietary research, of depositing raw experimental data (after some embargo time) into open-access re...

Collective self-trapping of atoms in a cavity

Oct 11, 2023

Dombi, András; Clark, Thomas William; Williams, Francis Ian Bickford; Jessen, Florian; Fortágh, József; Nagy, Dávid; Vukics, András; Domokos, Péter, 2023, "Collective self-trapping of atoms in a cavity", https://hdl.handle.net/21.15109/CONCORDA/9V5CHW, ARP, V1

We study experimentally the optical dipole trapping of a cloud of cold atoms in a high-finesse cavity in the parameter regime where the atomic back-action on the cavity mode is significant. Back-action based effects lead to state selective optical manipulation schemes. We identify a parameter range where the collective back action of the atoms is n...

Recognition-Control and Host–Guest Interactions in High-Symmetry Cocrystals of Fullerenes with Cubane and Mesitylene

Sep 28, 2023

Bortel, Gábor; Kováts, Éva; Földes, Dávid; Jakab, Emma; Durkó, Gábor; Pekker, Sándor, 2023, "Recognition-Control and Host–Guest Interactions in High-Symmetry Cocrystals of Fullerenes with Cubane and Mesitylene", https://hdl.handle.net/21.15109/CONCORDA/K1VCIW, ARP, V1

The limited success in the prediction of structure is one of the most serious problems in the engineering of molecular crystals. Here we show that the packing of high-symmetry molecules such as ball-shaped rotating fullerenes, cube-shaped cubane, and octahedral-shaped mesitylene dimers give rise to the formation of cubic cocrystals with easily pred...

A generalized scheme for characterizing orientational correlations in condensed phases of high symmetry molecules: SF6 and C60

Sep 28, 2023

Temleitner, Laszlo, 2023, "A generalized scheme for characterizing orientational correlations in condensed phases of high symmetry molecules: SF6 and C60", https://hdl.handle.net/21.15109/CONCORDA/ZDGWFL, ARP, V1, UNF:6:UTjajACSGnPBG+WxrKsGEA== [fileUNF]

Simulated datasets, and source code of the applied programs related to the publication appeared in Journal of Molecular Liquids Volume 341, 1 November 2021, 116916 (https://doi.org/10.1016/j.molliq.2021.116916) The orientational correlation scheme introduced earlier for tetrahedral molecules is extended to being able to classify orientational corre...

Wigner Fizikai Kutatóközpont Szilárdtestfizikai és Optikai Intézet(WIGNER)

Sep 26, 2023

Synergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO3 composite multiferroic

Jun 28, 2023

Lengyel, Attila; Bazsó, Gábor; Chumakov, Alexandr I.; Nagy, Dénes L.; Hegedűs, Gergő; Bessas, Dimitrios; Horváth, Zsolt E.; Nemes, Norbert M.; Gracheva, Maria A.; Szilágyi, Edit; Sajti, Szilárd; Merkel, Dániel G., 2022, "Synergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO3 composite multiferroic", https://hdl.handle.net/21.15109/CONCORDA/LUA07J, ARP, V2

FeRh based composite multiferroic materials have attracted great scientific interest due to their wide variety of possible applications in future nano device technology. In the recent work, a comprehensive study on the depth dependence of the metamagnetic phase transition in FeRh/BaTiO3 heterostructure is reported by means of single or combined ext...

A Three-Dimensional Analysis of Magnetic Nanopattern Formation in FeRh Thin Films on MgO Substrates: Implications for Spintronic Devices

Apr 6, 2022

Merkel, Dániel Géza; Hegedűs, Gergő; Gracheva, Maria; Deák, András; Illés, Levente; Németh Attila; Maccari, Fernando; Radulov, Iliya; Major, Márton; Chumakov. Aleksandr I.; Bessas, Dimitros; Nagy, Dénes Lajos; Zolnai, Zsolt; Graning, Sára; Sájerman, Klára; Szilágyi, Edit; Lengyel, Attila, 2022, "A Three-Dimensional Analysis of Magnetic Nanopattern Formation in FeRh Thin Films on MgO Substrates: Implications for Spintronic Devices", https://hdl.handle.net/21.15109/CONCORDA/LWU9RL, ARP, V2, UNF:6:bgzs99u5U4GqdM9ySXKVTg== [fileUNF]

Magnetic nanopatterns were successfully created in FeRh thin film deposited on MgO (100) substrates. Silica and polystyrene spherical masks, nominally 500 and 1000 nm in diameter, respectively were applied on the surface of the sample in order to locally shadow the film against the effect of 110 keV energy neon-ion irradiation with fluences of 1015...

Reversible control of magnetism in FeRh thin films

Apr 5, 2022

Merkel, Dániel G.; Lengyel, Attila; Nagy, Dénes Lajos; Németh, Attila; Horváth, Zsolt E.; Bogdán, Csilla; Gracheva, Maria A.; Hegedűs, Gergő; Sajti, Szilárd; Radnóczi Z. György; Szilágyi Edit, 2021, "Reversible control of magnetism in FeRh thin films", https://hdl.handle.net/21.15109/CONCORDA/83J6T0, ARP, V2, UNF:6:Cvr6lrS6zc+AXoY5zRPfYA== [fileUNF]

The multilayer of approximate structure MgO(100)/[nFe51Rh49(63 Å)/57Fe51Rh49(46 Å)]10 deposited at 200 °C is primarily of paramagnetic A1 phase and is fully converted to the magnetic B2 phase by annealing at 300 °C for 60 min. Subsequent irradiation by 120 keV Ne+ ions turns the thin film completely to the paramagnetic A1 phase. Repeated annealing...

TOWARDS A METADATA STANDARD FOR LABORATORY MÖSSBAUER SPECTROSCOPY

Dec 3, 2021

Nagy, Dénes Lajos; Spiering, Hartmut; Szilágyi Edit, 2021, "TOWARDS A METADATA STANDARD FOR LABORATORY MÖSSBAUER SPECTROSCOPY", https://hdl.handle.net/21.15109/CONCORDA/GRT2CA, ARP, V1

Metadata are data about data. The last 15 years saw an increasing need of assigning metadata to experimental data including spectroscopic ones. This fact was due to the requirement of making scientific publications open-access and, apart from non-proprietary research, of depositing raw experimental data (after some embargo time) into open-access re...

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