2,358 research outputs found
Default contagion risks in Russian interbank market
Systemic risks of default contagion in the Russian interbank market are
investigated. The analysis is based on considering the bow-tie structure of the
weighted oriented graph describing the structure of the interbank loans. A
probabilistic model of interbank contagion explicitly taking into account the
empirical bow-tie structure reflecting functionality of the corresponding nodes
(borrowers, lenders, borrowers and lenders simultaneously), degree
distributions and disassortativity of the interbank network under consideration
based on empirical data is developed. The characteristics of contagion-related
systemic risk calculated with this model are shown to be in agreement with
those of explicit stress tests.Comment: Final version, to appear in Physica
Gas Sensing with h-BN Capped MoS2 Heterostructure Thin Film Transistors
We have demonstrated selective gas sensing with molybdenum disulfide (MoS2)
thin films transistors capped with a thin layer of hexagonal boron nitride
(h-BN). The resistance change was used as a sensing parameter to detect
chemical vapors such as ethanol, acetonitrile, toluene, chloroform and
methanol. It was found that h-BN dielectric passivation layer does not prevent
gas detection via changes in the source-drain current in the active MoS2 thin
film channel. The use of h-BN cap layers (thickness H=10 nm) in the design of
MoS2 thin film gas sensors improves device stability and prevents device
degradation due to environmental and chemical exposure. The obtained results
are important for applications of van der Waals materials in chemical and
biological sensing.Comment: 3 pages; 4 figure
- …