Magnetic domain structure of the intermetallic RMn2Ge2 compounds (R identical to La, Ce, Pr, Nd).

• Autorzy: Przybył A. , Wysłocki J. J. , Pawlik P. , Szymura S. , Levin E. M.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, Kraków-Krynica, Poland, 17-21 May, 1998
• Języki publikacji: EN

Abstrakty

EN

Applying the powder pattern method the magnetic domain structures of the polycrystalline intermetallic RMn2Ge2 (where R identical to La, Ce, Pr, Nd) compounds were studied on the grain surfaces parallel and perpendicular to the easy direction of magnetization. The domain structures observed are typical for uniaxial materials. The domain wall energy density gamma was determined from the dependence of the domain width D on the crystal thickness L in the magnetically preferred direction, applying different models of the domain structure. A good agreement was obtained between the values of the domain wall energy as determined from the Kittel's model (gamma = 6,2 mJ/m3) and Hubert's model (gamma = 6,4 mJ/m3 for the LaMn2Ge2 compound.

Słowa kluczowe

EN

magnetic domain; magnetization; intermetallic compounds; rare earth; transition metals; crystal

PL

domena magnetyczna; magnetyzacja; związek międzymetaliczny; pierwiastki ziem rzadkich; metale przejściowe; kryształ

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 836--839
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Przybył A.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Wysłocki J. J.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Pawlik P.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Szymura S.

• Institute of Physics, Technical University of Częstochowa, Poland

autor

Levin E. M.

• Institute of Applied Physics, University of Lvov, Ukraine

• Technical University of Częstochowa, Institute of Physics

Bibliografia

• [1] I. Nowik, Y. Levi, I. Felner and E. R. Bauminger, J. Magn. Magn. Mater., 140-144 (1995) 913
• [2] A. Szytuła and J. Leciejewicz, „Handbook of the Physics and Chemistry of Rare Earths”, Vol. 12 ed. K. A. Gschneider, Jr and L. Eyring, Elsevier Science Publishers B. V., 1989, Chapt. 83.
• [3] T. Shigeoka, N. Iwata, H. Fujii and T. Okamoto, J. Magn. Magn. Mater., 53 (1985) 83.
• [4] J. Goodenough, Phys. Rev., 102 (1956) 356.
• [5] C. Kittel, Rev. Modern Phys., 21(1949) 541.
• [6] A. Hubert, Phys. Stat. Sol., 24 (1967) 669.