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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 4 Issue 4 (1998) pp 441-445
Magneto-phonon contribution into the Young's modulus of gadolinium
V.Y. Bodriakov (1), A.A. Povzner (1), S.A. Nikitin (2) (a)
(1) Ural State Technical University, UPI, Physics Department, 620002 Ekateringburg, Russia
(2) M.V. Lomonosov Moscow State University, Physics Department, 119899 Moscow, Russia
Received: 9 April 1996 / Revised: 26 January 1998 / Accepted: 26 February 1998
Abstract: Theoretical and experimental investigation has been made of the magnetic contribution to the Young's modulus of rare earth ferromagnet gadolinium. Experimental study includes measurements of the Young's modulus as a function of temperature, magnetic field and magnetization of gadolinium. Theoretical analysis is based on the account of phonon anharmonicity which gives rise to the dependence of Debye temperature on magnetization. Spontaneous magnetic contribution to the Young's modulus of Gd is found to be proportional to the squared magnetization of the metal. The magnetic contribution is also induced by magnetizing magnet due to the paraprocess.
PACS. 62.20.Dc Elasticity, elastic constants - 62.20.+x Mechanical properties of solids
(a) email: pav@alfa.e-burg.ru
Article in PDF-Format (247 KB)
Online publication: August 27, 1998
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