Mössbauer studies of spin reorientations in Er2-xGdxFe14B

• Autorzy: Wojciechowska A. , Bogacz B. , Pędziwiatr A.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'04
• Języki publikacji: EN

Abstrakty

EN

The Er2 xGdxFe14B (x = 0.5, 1.0, 1.5) polycrystalline compounds have been investigated with 57Fe Mössbauer spectroscopy in the 80 330 K temperature range. The spin reorientation phenomena (changes from planar to axial spin arrangements) have been studied extensively by a narrow step temperature scanning in the neighbourhood of the spin reorientation temperature. From the analysis of the spectra it was deduced that in the region of transition each subspectrum was split into two Zeeman sextets, which were characterized by different hyperfine magnetic fields and quadrupole splittings. A consistent way of describing the Mössbauer spectra in the wide range of temperatures was proposed. The composition and temperature dependencies of hyperfine interaction parameters and subspectra contributions were derived from experimental spectra. The transition temperatures were determined for all the compounds studied.

Słowa kluczowe

EN

Mössbauer effect; spin reorientation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2004
• Tom: Vol. 49,suppl.3
• Strony: 71--73
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Wojciechowska A.

• M. Smoluchowski Institute of Physics, Jagiellonian University, 4 Reymonta Str., 30-059 Kraków, Poland, Tel.: + 48 12/ 663 55 05, Fax: [phone]

autor

Bogacz B.

• M. Smoluchowski Institute of Physics, Jagiellonian University, 4 Reymonta Str., 30-059 Kraków, Poland, Tel.: + 48 12/ 663 55 05, Fax: [phone]

autor

Pędziwiatr A.

• M. Smoluchowski Institute of Physics, Jagiellonian University, 4 Reymonta Str., 30-059 Kraków, Poland, Tel.: + 48 12/ 663 55 05, Fax: [phone]

Bibliografia

• 1. Bogacz BF (2000) On the approximation of the Mössbauer integrals. Mol Phys Reports 30:15−20
• 2. Givord G, Li HS, Perrier de la Bathie R (1984) Magnetic properties of Y2Fe14B and Nd2Fe14B single crystals. Solid State Commun 51:857−860
• 3. Herbst JF, Croat JJ, Pinkerton FE, Yelon WB (1984) Relationships between crystal structure and magnetic properties in Nd2Fe14B. Phys Rev B 29:4176−4178
• 4. Hirosawa S, Matsuura Y, Yamamoto H, Fujimura S, Sagawa M, Yamauchi H (1985) Magnetization and magnetic anisotropy of R2Fe14B measured on single crystals. J Appl Phys 59:873−879
• 5. Wielgosz R, Pędziwiatr AT, Bogacz BF, Wróbel S (2000) Spin reorientation in Er2Fe14B intermetallic compound. Mol Phys Reports 30:167−173