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The magnetic properties and the existence of spin reorientation have been systematically investigated in MnNiGa ribbons. The thermomagnetic curve reveals that as-spun and annealed ribbons undergo a two-step magnetic structural transformation and the magnetic properties of the annealed ribbons are improved. The splitting behaviour of zero-field-cooled and filed-cooled (ZFC-FC) curve shows that the ribbon has occurred a spin reorientation transformation. The ZFC and isothermal magnetization curves tested by changing the direction of the magnetic field illustrate the existence of magnetic anisotr...

MIT's Long Ju uncovered anomalous fractional charge in graphene, a material previously not expected to exhibit such behavior, focusing on pentalayer graphene, consisting of five slightly staggered sheets arranged like a staircase.

Topological antiferromagnets have a significant role to play in the modern day electronics and spintronics due to the presence of peculiar symmetries and magnetically driven large anomalous transport behaviour. We report the observation of anomalous Hall effect in Mn3Sn polycrystalline thin films deposited on Al2O3 substrate with a large anomalous Hall conductivity of 65 (Ωcm)−1 at 3 K. The Hall and magnetic measurements show a very small hysteresis owing to a weak ferromagnetic moment present in this material. The longitudinal resistivity decreases sufficiently for the thin films as compar...

The demand for more efficient and smaller sized electronic devices with increased functionality has driven the semiconductor industry for decades. Most of the information processing and electrical circuitry has been based on the complementary metal oxide semiconductor (CMOS) devices until the recent years. The miniaturization of these devices, however, has reached its functional limit and newer ways are required to keep up with the increasing demands, computing becoming vastly used and even more relevant with the changing world. To overcome this problem, many approaches have been taken to upgr...

With a little twist and the turn of a voltage knob, Cornell researchers have shown that a single material system can toggle between two of the wildest