Antimony (16) | ![]() |
Asbestos (22) | ![]() |
Garnet (16) | ![]() |
Graphite (184) | ![]() |
Manganite (7) | ![]() |
Mica (5) | ![]() |
Mineral (85) | ![]() |
Olivine (12) | ![]() |
Perovskite (170) | ![]() |
Pyrochlore (8) | ![]() |
Quartz (37) | ![]() |
Tetrahedrite (5) | ![]() |
Zeolite (52) | ![]() |
#New material science research may advance tech tools The researchers manipulated a steel gray mineral called manganite,
or antidots, in thin films of manganite. It was discovered that the edges of the antidots were magnetic."
The magnetic phase state at the edges of the antidots raised the metal-to-insulator phase transition temperature of the manganite film.
T Venky Venkatesan led to the discovery of this new magnetic phenomenon by growing perfectly-crystalline atomic layers of a manganite, an oxide of lanthanum and manganese {Lamno3},
The manganite is an antiferromagnet when it is atomically thin and shows no magnetism. The new discovery is that its magnetism is switched on abruptly when the number of Manganese atomic layers changes from 5 to 6 or more.
inside the manganite. As a consequence of this charge transfer, the manganite layer switches to a strongly ferromagnetic state,
as could be visualised by a magnetic microscopy technique called Scanning SQUID Microscopy. This was conducted by Dr Xiao Renshaw Wang,
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