Mössbauer effect studies of Dy(Mn0.4-xAlxFe0.6)2 intermetallics

• Autorzy: Stoch P. , Pszczoła J. , Guzdek P. , Jabłońska A. , Suwalski J. , Dąbrowski L. , Pańta A.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'04
• Języki publikacji: EN

Abstrakty

EN

Both 3d subbands in the Dy(Mn0.4Fe0.6)2 compound are filled up only partially with 3d electrons. So, it was interesting to study the consequence of Mn/Al substitution in the Dy(Mn0.4 xAlxFe0.6)2 series. The cubic, MgCu2-type, Fd3m crystal structure was observed across the series. However, for x = 0.35 and 0.40 a stoichiometric admixture of the hexagonal, MgZn2-type, P63/mmc structure was evidenced. Mössbauer effect measurements at 57Fe nuclei were performed at 77 K. The magnetic hyperfine field decreases vs. the aluminium content x. This dependence is related to the possible 3d-electron band structure.

Słowa kluczowe

EN

intermetallics; crystal structure; 57Fe Mössbauer effect; hyperfine interactions; Slater-Pauling curve

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2004
• Tom: Vol. 49,suppl.3
• Strony: 23--25
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Stoch P.

• Solid State Physics Department, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: [phone], Fax: [phone]

autor

Pszczoła J.

• Solid State Physics Department, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: [phone], Fax: [phone]

autor

Guzdek P.

• Solid State Physics Department, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland, Tel.: [phone], Fax: [phone]

autor

Jabłońska A.

• Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland

autor

Suwalski J.

• Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland

autor

Dąbrowski L.

• Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland

autor

Pańta A.

• Department of Metallurgy and Materials Engineering, AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Kraków, Poland

Bibliografia

• 1. Burzo E, Kirchmayr HR (1989) Physical properties of R2F14Bbased alloys. In: Gschneidner KA Jr, Eyring L (eds) Handbook on the physics and chemistry of rare earths. Vol 12. Elsevier, Amsterdam, North-Holland, pp 71−132
• 2. Chojnacki J (1966) Structural metallography. Wydawnictwo Śląsk, Katowice (in Polish)
• 3. Gicala B, Pszczoła J, Kucharski Z, Suwalski J (1995) Magnetic hyperfine fields of Dyx(Fe-Co)y compounds. Solid State Commun 96:511−515
• 4. Pszczoła J, Winiarska B, Suwalski J, Kucharski Z (1998) Slater-Pauling dependence of Dy[(Fe0.4Co0.6)1−xAlx]2 intermetallics. J Alloys Compd 265:15−22
• 5. Stoch P, Pszczoła J, Jagodziński P et al. (2004) Synthesis, crystal structure and Mössbauer effect studies of Dy(Mn0.4Fe0.6−xAlx)2 intermetallics. J Alloys Compd 375:24−30
• 6. Stoch P, Pszczoła J, Suwalski J, Pańta A (2003) Structural and Mössbauer effect studies of Dy(Fe0.4Co0.6−xAlx)2 intermetallics. Nukleonika 48;S1:s75−s77
• 7. van der Woude F, Sawatzky GA (1974) Mössbauer effect in iron and dilute iron based alloys. Phys Rep 12:335−374
• 8. Vonsovskij W (1971) Magnetizm. Nauka, Moscow (in Russian)