Mode coupling between nonpolar and polar phonons as the origin of improper ferroelectricity in hexagonal LuMnO3
2014 ◽
Vol 2
(21)
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pp. 4126-4132
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Keyword(s):
Currently, the most puzzling problem associated with the hexagonal LuMnO3 (h-LMO) is a large temperature-gap between the structural phase transition to the polar P63cm phase at ∼1290 K and the emergence of the spontaneous polarization at a substantially reduced temperature, ∼750 K.
Keyword(s):
2020 ◽
Vol 12
(22)
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pp. 25143-25149
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2015 ◽
Vol 57
(11)
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pp. 2286-2289
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Keyword(s):
2020 ◽
Vol 65
(1)
◽
pp. 76-80
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2020 ◽
Vol 45
(58)
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pp. 33047-33058
Keyword(s):