Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3

Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3

The demand for ever-increasing density of information storage and speed of manipulation boosts an intense search for new magnetic materials and novel ways of controlling the magnetic bit. Here, we report the synthesis of a ferromagnetic photovoltaic CH3NH3(Mn:Pb)I3 material in which the photo-excited electrons rapidly melt the local magnetic order through the Ruderman-Kittel-Kasuya-Yosida inter...

Optically-switched Multiwavelength Networks

Optical networks are widely regarded as the ultimate solution to the bandwidth needs of future communication systems. With ber-optic links deployed between nodes, the electronic devices at the switch nodes, rather than the transmission medium, limit the bandwidth of a network. In an optically-switched network, a photonic switch can control connection paths without optical-to-electrical (O-E) co...

Interface-induced magnetism in perovskite quantum wells

Efficient photovoltaic and electroluminescent perovskite devices.

Planar diode structures employing hybrid organic-inorganic methylammonium lead iodide perovskites lead to multifunctional devices exhibiting both a high photovoltaic efficiency and good electroluminescence. The electroluminescence strongly improves at higher current density applied using a pulsed driving method.

IP Multicast for Optically Switched Networks

New research perspectives opened up by the combination of IP and WDM technologies present an excellent opportunity for reformulating certain aspects of multicast transmission, bringing them more in line with the needs of future generations of IP internetworking. This paper includes new proposals for handling state information about the multicast distribution tree, as well as for the establishme...