Results 11 to 20 of about 18,653 (230)

The role of surface chemical reactivity in the stability of electronic nanodevices based on two-dimensional materials "beyond graphene" and topological insulators [PDF]

open access: yes, 2017
Here, we examine the influence of surface chemical reactivity toward ambient gases on the performance of nanodevices based on two-dimensional materials "beyond graphene" and novel topological phases of matter.
Boukhvalov, D. W.   +4 more
core   +1 more source

Defects in CrAs and related compounds: a route to half-metallic ferrimagnetism [PDF]

open access: yes, 2006
Half-metallic ferrimagnetism is crucial for spintronic applications with respect to ferromagnets due to the lower stray fields created by these materials.
Aktas, B.   +3 more
core   +2 more sources

Quasiparticle electronic band structure of the alkali metal chalcogenides [PDF]

open access: yes, 2015
The electronic energy band spectra of the alkali metal chalcogenides M$_2$A (M: Li, Na, K, Rb; A: O, S, Se, Te) have been evaluated within the projector augmented waves (PAW) approach by means of the ABINIT code. The Kohn-Sham single-particle states have
Shved, V. M., Syrotyuk, S. V.
core   +2 more sources

Strong electron correlations in the normal state of FeSe0.42Te0.58 [PDF]

open access: yes, 2010
We investigate the normal state of the '11' iron-based superconductor FeSe0.42Te0.58 by angle resolved photoemission. Our data reveal a highly renormalized quasiparticle dispersion characteristic of a strongly correlated metal.
Bacsa, J.   +11 more
core   +3 more sources

Magnetic interactions in iron superconductors: A review [PDF]

open access: yes, 2015
High temperature superconductivity in iron pnictides and chalcogenides emerges when a magnetic phase is suppressed. The multi-orbital character and the strength of correlations underlie this complex phenomenology, involving magnetic softness and ...
Aichhorn   +298 more
core   +2 more sources

Pressure induced superconductivity bordering a charge-density-wave state in NbTe4 with strong spinorbit coupling

open access: yes, 2018
Transition-metal chalcogenides host various phases of matter, such as charge-density wave (CDW), superconductors, and topological insulators or semimetals.
An, Chao   +15 more
core   +1 more source

Exfoliation of large-area transition metal chalcogenide single layers [PDF]

open access: yes, 2015
Isolating large-areas of atomically thin transition metal chalcogenide crystals is an important but challenging task. The mechanical exfoliation technique can provide single layers of the highest structural quality, enabling to study their pristine ...
Biró, László Péter   +5 more
core   +1 more source

Phonons and Anisotropic Thermal Expansion Behaviour of NiX (X = S, Se, Te)

open access: yes, 2019
Metal Chalcogenides have been known for important technological applications and have attracted continuous interest in their structure, electronic, thermal and transport properties.
Chaplot, S. L.   +7 more
core   +1 more source

Improved half-metallic ferromagnetism of transition-metal pnictides and chalcogenides calculated with a modified Becke-Johnson exchange potential

open access: yes, 2010
We use a density-functional-theory (DFT) approach with a modified Becke-Johnson exchange plus local density approximation (LDA) correlation potential (mBJLDA) [semi-local, orbital-independent, producing accurate semiconductor gaps. see F.
Guo, San-Dong, Liu, Bang-Gui
core   +1 more source

Surface Restructuring of Nickel Sulfide Generates Optimally-Coordinated Active Sites for ORR Catalysis

open access: yes, 2017
First-row transition metal oxides and chalcogenides have been found to rival the performance of precious metal-based catalysts for the interconversion of water and O$_2$.
Deshpande, Siddharth   +5 more
core   +1 more source

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