
JETP, Vol. 63,
No. 3,
p. 652 (March 1986)
(Russian original - ZhETF,
Vol. 90,
No. 3,
p. 1118,
March 1986
)
The nature of the soft mode at the low-temperature phase transition in ErFe03
I.M. Vitebskii, N.K. Dan'shin, N.M. Kovtun, M.A. Sdvizhkov
Received: August 21, 1985
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