The CINN investigates two approaches for increasing the capacity of information storage media. One research line is devoted to the development of magnetic molecules able to retain magnetic information, the so-called molecular magnets and the other one is focused on the propagation of domain walls in thin ferromagnetic ﬁlms.
PAVING THE WAY TO FUTURE INFORMATION AND COMMUNICATION DEVICES
Information storage by means of magnetic media is one of the oldest technologies for data recording and although the storing capacity has drastically increased since the first prototype developed in 1898 thanks to the reduction of the size of elementary registers (bits) from a few mm to about 1000 nm2, the physical limits of how much can be written on a single conventional magnetic media is rapidly approaching. It’s therefore critical an increased data storage capacity in order to the support the ever-increasing amounts of digital information being processed, transferred and stored by computers.
With a much higher carrier frequency than RF/microwave, the terahertz band holds great potential for next generation high-speed wireless communications, such as secured short-link communications, local access network connections, and high-speed wireless communications. Terahertz radiation could also be used for other important applications, such as THz spectroscopy, atmospheric pollution monitoring, global warming, medical and biological research, THz imaging for detecting concealed weapons or currency forgeries at airports or security check points as well as THz Radar for spotting roadside bombs over a short distance.
To date progress towards viable THz applications has been hampered by the lack of suitable and enabling components, such as emitters and detectors.
The CINN works on the development of metamaterials for terahertz frequencies. Metamaterials are artificial structures engineered to provide properties which may not exist in natural materials. Their development allows obtaining materials with, for example, negative or zero refractive index which opens the way to higher gain antennae, sensors...
TV report on quantum interference in graphene break junctions
Report shown on Televisión del Principado de Asturias
Quantum physics: Interview with Prof. Jaime Ferrer and Dr. Victor García Suarez
Interview with Prof. Jaime Ferrer and Dr. Victor García Suarez Radio programme: Hoy por Hoy Asturias