Gaming disorder has become a significant issue in mental healthcare. While gaming is an important form of entertainment, excessive gaming may cause serious consequences for players. At present, there are still controv...Gaming disorder has become a significant issue in mental healthcare. While gaming is an important form of entertainment, excessive gaming may cause serious consequences for players. At present, there are still controversies in the academic community concerning the public health problems related to gaming disorder. This article attempts to expound the definition, epidemiology, aetiology, diagnosis, treatment and prevention of gaming disorder, in order to contribute to future conceptualization of gaming disorder.展开更多
Two-dimensional(2D)ferromagnetic materials have been exhibiting promising potential in applications,such as spintronics devices.To grow epitaxial magnetic films on silicon substrate,in the single-layer limit,is practi...Two-dimensional(2D)ferromagnetic materials have been exhibiting promising potential in applications,such as spintronics devices.To grow epitaxial magnetic films on silicon substrate,in the single-layer limit,is practically important but challenging.In this study,we realized the epitaxial growth of Mn Sn monolayer on Si(111)substrate,with an atomically thin Sn/Si(111)-231/2×231/2-buffer layer,and controlled the Mn Sn thickness with atomic-layer precision.We discovered the ferromagnetism in Mn Sn monolayer with the Curie temperature(Tc)of^54 K.As the Mn Sn film is grown to 4 monolayers,Tc increases accordingly to^235 K.The lattice of the epitaxial Mn Sn monolayer as well as the Sn/Si(111)-231/2×231/2 is perfectly compatible with silicon,and thus an sharp interface is formed between Mn Sn,Sn and Si.This system provides a new platform for exploring the 2D ferromagnetism,integrating magnetic monolayers into silicon-based technology,and engineering the spintronics heterostructures.展开更多
基金grants from the National Key R&D Program of China(2017YFC1310400)the National Natural Science Foundation of China(81371465 and 81671324).
文摘Gaming disorder has become a significant issue in mental healthcare. While gaming is an important form of entertainment, excessive gaming may cause serious consequences for players. At present, there are still controversies in the academic community concerning the public health problems related to gaming disorder. This article attempts to expound the definition, epidemiology, aetiology, diagnosis, treatment and prevention of gaming disorder, in order to contribute to future conceptualization of gaming disorder.
基金supported by the National Natural Science Foundation of China(Grant Nos.11774149,11790311,11574133,and 11834006)the National Key R&D Program of China(Grant Nos.2016YFA0300404,2015CB921202,and 2014CB921103)。
文摘Two-dimensional(2D)ferromagnetic materials have been exhibiting promising potential in applications,such as spintronics devices.To grow epitaxial magnetic films on silicon substrate,in the single-layer limit,is practically important but challenging.In this study,we realized the epitaxial growth of Mn Sn monolayer on Si(111)substrate,with an atomically thin Sn/Si(111)-231/2×231/2-buffer layer,and controlled the Mn Sn thickness with atomic-layer precision.We discovered the ferromagnetism in Mn Sn monolayer with the Curie temperature(Tc)of^54 K.As the Mn Sn film is grown to 4 monolayers,Tc increases accordingly to^235 K.The lattice of the epitaxial Mn Sn monolayer as well as the Sn/Si(111)-231/2×231/2 is perfectly compatible with silicon,and thus an sharp interface is formed between Mn Sn,Sn and Si.This system provides a new platform for exploring the 2D ferromagnetism,integrating magnetic monolayers into silicon-based technology,and engineering the spintronics heterostructures.
