Journal of Experimental and Theoretical Physics

JETP, Vol. 71, No. 3, p. 544 (September 1990)
(Russian original - ZhETF, Vol. 98, No. 3, p. 978, September 1990 )

First and second order phase transitions in YBa₂Cu₃O_6+x due to redistribution of oxygen along the chains at low temperatures
L.G. Mamsurova, K.S. Pigal'skii, V.P. Sakun, A.I. Shushin, L.G. Shcherbakova

Received: December 12, 1989

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