Article
Materials Science, Multidisciplinary
A. Fleurence, Y. Yamada-Takamura
Summary: The transformation of stripe domain structure of epitaxial silicene on ZrB2 thin films into a single-domain was investigated by monitoring the evolution of domain structure after Si deposition. The nucleation of single-domain island and its extension through edge dislocations were observed, providing insights into healing crystallographic defects in two-dimensional materials.
Article
Chemistry, Multidisciplinary
Yi Liu, Sandra Benter, Chin Shen Ong, Renan P. Maciel, Linnea Bjork, Austin Irish, Olle Eriksson, Anders Mikkelsen, Rainer Timm
Summary: Researchers have successfully formed a 2D honeycomb structure of Bi on GaAs, which exhibits similar electronic properties as bismuthene and can be used for spintronics applications at room temperature.
Article
Chemistry, Physical
Felix Reichmann, Andreas P. Becker, Emily V. S. Hofmann, Neil J. Curson, Wolfgang M. Klesse, Giovanni Capellini
Summary: This work investigates the modification of the electronic structure of the Ge(0 0 1) surface by the adsorption of Sn atoms. The study reveals a prevalence of symmetric Sn ad-dimers at a Sn coverage above one monolayer and the appearance of a non-dispersive electronic state after Sn adsorption. The presence of this state is correlated to the interaction of electronic states from a Sn ad-dimer configuration with the surface resonances of the Ge up-dimer.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Alexei B. Preobrajenski, Andrey Lyalin, Tetsuya Taketsugu, Nikolay A. Vinogradov, Alexander S. Vinogradov
Summary: The structural and electronic properties of two-dimensional honeycomb boron on the Al(111) substrate have been elucidated through a combination of experimental techniques and theoretical calculations. It is found that honeycomb boron induces reconstruction of the top metal layer, forming a stoichiometric AlB2 sheet on top of Al, in contrast to graphene behavior on lattice-mismatched metal surfaces. The electronic states of honeycomb boron exhibit a clear separation into pi- and sigma-subsystems, indicating the 2D nature of the electronic system in both mono-layer AlB2 and bulk AlB2.
Article
Chemistry, Multidisciplinary
Hui Zhang, Madisen Holbrook, Fei Cheng, Hyoungdo Nam, Mengke Liu, Chi-Ruei Pan, Damien West, Shengbai Zhang, Mei-Yin Chou, Chih-Kang Shih
Summary: The synthesis of a single atomic sheet of honeycomb structure BeO (h-BeO) grown on Ag(111) thin films on Si(111) wafers using molecular beam epitaxy (MBE) is reported. The h-BeO has a lattice constant of 2.65 A and an insulating band gap of 6 eV. Weak interaction between h-BeO layer and Ag(111) substrate is found, making h-BeO an attractive candidate for future technological applications.
Article
Chemistry, Physical
L. Boulley, D. Kandaskalov, M-C de Weerd, S. Migot, J. Ghanbaja, S. Sturm, P. Boulet, J. Ledieu, E. Gaudry, V Fournee
Summary: The bulk structure of the eta-Al5Fe2 intermetallic compound consists of a framework of pentagonal antiprims with nearly continuous chains of fractionally occupied Al sites. Surface investigation of this compound has not been reported yet, despite its technological importance, and the growth of a single crystal of this compound by the Czochralski method is described in this study. Density Functional Theory calculations were performed to determine its formation enthalpy and electronic structure, showing a deep pseudogap at the Fermi energy and the compound's magnetic nature.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Applied
Yong Duan, Wenxia Kong, Jinzhe Zhang, Jianxin Wang, Qun Cai
Summary: This study demonstrates that highly reactive erbium atoms can enhance the surface graphitization of SiC and enable controllable growth of graphene. Additionally, erbium atoms can modify the type of structural defects in graphene, significantly increasing the density of flower defects.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Satoru Kaneko, Takashi Tokumasu, Manabu Yasui, Masahito Kurouchi, Shigeo Yasuhara, Tamio Endo, Masaki Azuma, Akufumi Matsuda, Mamoru Yoshimoto, Sumanta Kumar Sahoo, Kripasindhu Sardar, Jyh-Ming Ting, Masahiro Yoshimura
Summary: This article investigates the challenges of direct growth of oxide films on silicon and the thermodynamic stability of binary oxides. Using magnesium oxide as an example, the study predicts the crystal orientation of epitaxial growth on silicon surface and confirms it with experimental results. The evaluation of adsorption energy can serve as a guideline for the epitaxial growth of oxide materials on silicon surface.
APPLIED SURFACE SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Laurence Masson, Geoffroy Prevot
Summary: Since the discovery of graphene, researchers have been actively exploring two-dimensional materials composed of other group 14 elements, such as silicon and germanium, due to their similar electronic configuration and use in the semiconductor industry. Silicene, the silicon counterpart of graphene, has been extensively studied both theoretically and experimentally. The synthesis of silicene presents challenges as silicon does not have a layered structure like graphite. This article provides a comprehensive review of the different epitaxial systems used in synthesizing silicene and discusses its reactivity, air-stability, and transfer to a target substrate.
NANOSCALE ADVANCES
(2023)
Article
Nanoscience & Nanotechnology
Fuqiang Hua, Pengfei Lv, Min Hong, Sen Xie, Min Zhang, Cheng Zhang, Wei Wang, Zhaohui Wang, Yong Liu, Yonggao Yan, Shengjun Yuan, Wei Liu, Xinfeng Tang
Summary: This study visualizes the dominant native atomic defects in SnTe and clarifies an alternative optimization mechanism for the electronic transport properties through defect engineering. Increasing substrate temperature and adjusting the Te/Sn flux ratio during film growth can manipulate the hole density and carrier mobility in SnTe films, leading to an improved power factor. The findings contribute to a better understanding of the electronic transport properties in SnTe-based compounds.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Junqiu Zhang, Xingxing Dong, Shaogang Xu, Yipu Xia, Wingkin Ho, Hu Xu, Maohai Xie
Summary: In this study, platinum-phosphorus networks were obtained by P adsorption on Pt(111), enriching the diverse structures of metal-phosphorus networks and providing new insights into the formation mechanism of epitaxial P and its interaction with the noble metal substrate.
Article
Chemistry, Multidisciplinary
F. Aguilera-Granja, R. H. Aguilera-del-Toro, E. E. Vogel, E. Cisternas
Summary: Density-functional-theoretical calculations were performed to study the adsorption of TiO2 nanoclusters on various substrates with different textures and defects. The results provide information on the energy of different configurations and the relationship between various parameters. Possible extensions of the work are also discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Dmitrii Maksimov, Carsten Baldauf, Mariana Rossi
Summary: The study demonstrates that when the amino acid arginine interacts with metallic surfaces, the accessible conformational space is significantly reduced, while the space for the protonated form Arg-H(+) is increased. This is due to the formation of strong bonds between arginine and the surfaces, leading to a change in the conformational space available.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
P. Aghdasi, Sh Yousefi, R. Ansari
Summary: In this study, the effects of halogen and metal atomic adsorption on the mechanical and structural characteristics of silicene are investigated using density functional theory (DFT) calculations. The results show that adsorption leads to changes in the elastic and bulk moduli of silicene structures, with different effects depending on the adsorbed atoms. The stability, bonding properties, isotropic behavior, and plastic behavior of silicene are also analyzed.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Gang Guo, Jingzhong Liu, Yajuan Xu, Gencai Guo, Siyi Tan
Summary: To expand the application of silicene in optoelectronics, the properties of silicene Janus-functionalized by hydrogen and halogen atoms are investigated. The stability and mechanical properties of Janus-functionalized silicene monolayers are confirmed by simulations and calculations. The functionalization of silicene enhances its optical absorption and shows potential for efficient water splitting.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Yongfeng Tong, Francois Nicolas, Stefan Kubsky, Hamid Oughaddou, Fausto Sirotti, Vladimir Esaulov, Azzedine Bendounan
JOURNAL OF PHYSICAL CHEMISTRY C
(2017)
Article
Multidisciplinary Sciences
Sana Sadeddine, Hanna Enriquez, Azzedine Bendounan, Pranab Kumar Das, Ivana Vobornik, Abdelkader Kara, Andrew J. Mayne, Fausto Sirotti, Gerald Dujardin, Hamid Oughaddou
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Physical
Yongfeng Tong, Javier D. Fuhr, Maria Luz Martiarena, Hamid Oughaddou, Hanna Enriquez, Francois Nicolas, Karine Chaouchi, Stefan Kubsky, Azzedine Bendounan
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Wei Zhang, Hanna Enriquez, Yongfeng Tong, Azzedine Bendounan, Abdelkader Kara, Ari P. Seitsonen, Andrew J. Mayne, Gerald Dujardin, Hamid Oughaddou
Article
Materials Science, Multidisciplinary
G. Tiouitchi, M. Ait Ali, A. Benyoussef, M. Hamedoun, A. Lachgar, M. Benaissa, A. Kara, A. Ennaoui, A. Mahmoud, F. Boschini, H. Oughaddou, A. El Kenz, O. Mounkachi
Article
Materials Science, Multidisciplinary
Yongfeng Tong, Meryem Bouaziz, Wei Zhang, Baydaa Obeid, Antoine Loncle, Hamid Oughaddou, Hanna Enriquez, Karine Chaouchi, Vladimir Esaulov, Zhesheng Chen, Heqi Xiong, Yingchun Cheng, Azzedine Bendounan
Article
Chemistry, Multidisciplinary
Wei Zhang, Hanna Enriquez, Yongfeng Tong, Andrew J. Mayne, Azzedine Bendounan, Yannick J. Dappe, Abdelkader Kara, Gerald Dujardin, Hamid Oughaddou
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yongfeng Tong, Meryem Bouaziz, Hamid Oughaddou, Hanna Enriquez, Karine Chaouchi, Francois Nicolas, Stefan Kubsky, Vladimir Esaulov, Azzedine Bendounan
Article
Physics, Multidisciplinary
G. Tiouitchi, F. ElManjli, O. Mounkachi, A. Mahmoud, F. Boschini, A. Kara, H. Oughaddou, M. Hamedoun, A. Benyoussef, M. Ait Ali
JORDAN JOURNAL OF PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Mohamed Rachid Tchalala, Hanna Enriquez, Azzedine Bendounan, Andrew J. Mayne, Gerald Dujardin, Abdelkader Kara, Mustapha Ait Ali, Hamid Oughaddou
NANOSCALE ADVANCES
(2020)
Article
Chemistry, Physical
Nils Fabian Kleimeier, Gabi Wenzel, Adrian Joe Urban, Mohamed Rachid Tchalala, Hamid Oughaddou, Yuriy Dedkov, Elena Voloshina, Helmut Zacharias
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
Article
Materials Science, Multidisciplinary
Mohamed Rachid Tchalala, Abdelkader Kara, Abdessadek Lachgar, Said Yagoubi, Eddy Foy, Enrique Vega, Serge Nitsche, Damien Chaudanson, Bernard Aufray, Larbi El Firdoussi, Mustapha Ait Ali, Hamid Oughaddou
MATERIALS TODAY COMMUNICATIONS
(2018)
Article
Materials Science, Multidisciplinary
Ala Husseen, Severine Le Moal, Hamid Oughaddou, Gerald Dujardin, Andrew Mayne, Eric Le Moal
Article
Materials Science, Multidisciplinary
Khalid Quertite, Halima Zaari, Hamid Ez-Zahraouy, Abdallah El Kenz, Hamid Oughadou, Abdelilah Benyoussef
CURRENT APPLIED PHYSICS
(2017)
Article
Chemistry, Physical
Abdelaziz El Boujlaidi, Nabil Rochdi, Rachid Tchalala, Hanna Enriquez, Andrew J. Mayne, Hamid Oughaddou
SURFACES AND INTERFACES
(2020)