Results 81 to 90 of about 334,237 (330)

Van Hove singularities in the paramagnetic phase of the Hubbard model: a DMFT study

, 2009
Using the dynamical mean-field theory (DMFT) we study the paramagnetic phase of the Hubbard model with the density of states (DOS) corresponding to the three-dimensional cubic lattice and the two-dimensional square lattice, as well as a DOS with inverse ...
E. N. Economou, Janez Bonča, Rok Žitko, Thomas Pruschke   +3 more
core   +1 more source

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

Advanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng, Ying Liu, Jialin Gong, Yalong Jiao, Xiaoming Zhang, Wenxian Li, Zhenxiang Cheng, Tie Yang   +7 more
wiley   +1 more source

Electronic Properties of Boron and Nitrogen doped graphene: A first principles study

, 2012
Effect of doping of graphene either by Boron (B), Nitrogen (N) or co-doped by B and N is studied using density functional theory. Our extensive band structure and density of states calculations indicate that upon doping by N (electron doping), the Dirac ...
AK Geim, HJ Monkhorst, KS Novoselov, KS Novoselov, L Ci, LS Panchkarla, P Giannozzi, SS Yu, Sugata Mukherjee, T. P. Kaloni, TB Martins, TP Kaloni, TP Kaloni, TP Kaloni, TP Kaloni, TP Kaloni, TP Kaloni, U Barth von, WH Brito, X Wang, X Wei, Y Fan, YC Cheng   +22 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Nature‐inspired 3D hierarchical carbon nanotube matrices enable extraordinary solar steam generation

Carbon Energy
Interfacial solar evaporation, which captures solar energy and localizes the absorbed heat for water evaporation, is considered a promising technology for seawater desalination and solar energy conversion.
Chuanshuai Dong, Lei Chen, Weiquan Lin, Zipai Li, Linjie Wei, Chaohua Peng, Huan Liu, Ronghui Qi, Lin Lu, Lizhi Zhang   +9 more
doaj   +1 more source

Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$

, 2005
Strong angle-dependent intensity variations of the Fermi-level feature are observed in 4d - 4f resonant photoemission spectra of CePd$_3$(111), that reveal the periodicity of the lattice and largest intensity close to the Gamma points of the surface ...
C. Laubschat, D. V. Vyalikh, J. Boysen, M. Heber, S. Danzenbächer, S. Hüfner, S. L. Molodtsov, V. D. P. Servedio, Yu. Kucherenko   +8 more
core   +1 more source

Composition and Resulting Band Alignment at the TiO2/InP Heterointerface: A Fundamental Study Combining Photoemission Spectroscopy and Theory

Advanced Functional Materials, EarlyView.
The chemical composition and band alignment are systematically investigated at the TiO2/InP heterointerface. Thin TiO2 films are deposited by ALD on atomically ordered, P‐terminated p‐InP(100). By combining UPS, XPS, and ab initio molecular dynamics, the atomistic structure and electronic alignment are revealed.
Mohammad Amin Zare Pour, Muhammad Nawaz Qaisrani, Christian Höhn, Johannes Laurenz Wolf, Negin Mogharehabed, Jennifer Velazquez Rojas, Wolfram Jaegermann, Erich Runge, Roel van de Krol, Thomas Hannappel, Christian Dreßler, Agnieszka Paszuk   +11 more
wiley   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Reduction of Schottky Barrier Height at Graphene/Germanium Interface with Surface Passivation

Applied Sciences, 2019
Fermi level pinning at metal/semiconductor interfaces forbids a total control over the Schottky barrier height. 2D materials may be an interesting route to circumvent this problem. As they weakly interact with their substrate through Van der Waals forces,
Jules Courtin, Alain Moréac, Gabriel Delhaye, Bruno Lépine, Sylvain Tricot, Pascal Turban, Philippe Schieffer, Jean-Christophe Le Breton   +7 more
doaj   +1 more source

Fermi-Gas Model Parametrization of Nuclear Level Density. [PDF]

Journal of Nuclear Science and Technology, 1994
The authors furnish a new parametrization of the Fermi-Gas model description of nuclear level densities at excitation energies corresponding to the neutron binding energy. The model adopted is the standard Fermi-Gas model with pairing and shell-effect corrections.
Alberto MENGONI, Yutaka NAKAJIMA
openaire   +1 more source