Comparative review of the TiO2 and the spintronic memristor devices

Memristor, has attracted increased attentions since the first real device was discovered by HP Labs in 2008. Its distinctive characteristic to store the historic state of the voltage/current through it creates great potentials in circuit design. Thus, many physical realization of the device have been introduced. In this work, a review of two of the most challenging physical realizations of the memristor is performed in light of what was predicted by Chua in 1971.