Scientists identify new magnetic element
New York, May 27: Scientists have demonstrated that the chemical element ruthenium (Ru) is the fourth single element to have unique magnetic properties at room temperature.
The researchers believe that the discovery, detailed in the journal Nature Communications, could be used to improve sensors, devices in the computer memory and logic industry, or other devices using magnetic materials.
"Magnetism is always amazing. It proves itself again. We are excited and grateful to be the first group to experimentally demonstrate and add the fourth ferromagnetic element at room temperature to the periodic table," said Jian-Ping Wang, Professor at University of Minnesota in the US and the corresponding author for the paper.
The use of ferromagnetism, or the basic mechanism by which certain materials (such as iron) form permanent magnets or are attracted to magnets, reaches back as far as ancient times when lodestone was used for navigation.
Since then only three elements on the periodic table have been found to be ferromagnetic at room temperature -- iron (Fe), cobalt (Co), and nickel (Ni). The rare earth element gadolinium (Gd) nearly misses by only 8 degrees Celsius.
Magnetic materials are very important in industry and modern technology and have been used for fundamental studies and in many everyday applications such as sensors, electric motors, generators, hard disk media, and most recently spintronic memories.
By using ultra-thin films to force the ferromagnetic phase, this new study demonstrated that Ru can be the fourth single element ferromagnetic material.
"It took us about two years to find a right way to grow this material and validate it. This work will trigger magnetic research community to look into fundamental aspects of magnetism for many well-known elements," Wang added.
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Mumbai Indians beat Delhi Capitals by 12 runs
New Delhi, Apr 13 (PTI): Mumbai Indians beat Delhi Capitals by 12 runs in their IPL match here on Sunday.
Sent in to bat, Tilak Varma hit a 33-ball 59 to power Mumbai Indians to 205 for five.
Ryan Rickelton (41 off 25 balls), Suryakumar Yadav (40 off 28 balls) and Naman Dhir (38 off 17 balls) also made useful contributions.
In reply, DC were all out for 193 in 19 overs, despite Karun Nair's 40-ball 89.
Karn Sharma (3/36) claimed three wickets, while Mitchell Santner (2/43) took two wickets.
For DC, Vipraj Nigam (2/41) and Kuldeep Yadav (2/23) snapped two wickets each, while Mukesh Kumar (1/38) took one.
Brief Scores:
Mumbai Indians: 205 for 5 in 20 overs (Tilak Varma 59; Kuldeep Yadav 2/23, Vipraj Nigam 2/41).
Delhi Capitals: 193 all out in 19 overs (Karun Nair 89; Karn Sharma 3/36).
