PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Czasopismo
2015 | 60 | 1 | 155-160
Tytuł artykułu

Magnetic and structural properties of Sc(Fe1−xSix)2Laves phases studied by Mössbauer spectroscopy and neutron diffraction

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The aim of the presented paper is to study an influence of replacement of Fe atoms by Si atoms in quasibinary Sc(Fe1−xSix)2 Laves phases on their structural and magnetic properties. Powder X-ray diffraction (XRD) and neutron diffraction (ND) measurements carried out at different temperatures from 4.3 K up to about 700 K revealed that samples were single phase with cubic C15 structure for Si concentration x from 0.05 to 0.20 and hexagonal C14 structure for higher concentration. The results of 57Fe Mössbauer measurements showed that the Sc(Fe1−xSix)2 compounds with x ≤ 0.30 are ferrimagnetic at 4.3 K. At temperature 80 K in the samples with x = 0.20 and 0.30, a magnetic cluster spin-glass state has been observed, as ferrimagnetic long-range order disappears. Such picture was supported by the results of ND measurements carried out at 8 K, which confirmed the lack of long-range order for x above 0.10 and an occurrence of hyperfine field distributions in the corresponding Mössbauer spectra. At room temperature, samples with x ≥ 0.20 became paramagnetic. A substitution of Si atoms for Fe ones leads to a decreasing of mean values of hyperfine magnetic fields in samples under investigation. From the neutron diffraction pattern analysis of Sc(Fe0.90Si0.10)2Fe magnetic moment was determined as to be equal to 1.5 μB at 8 K. Combining this result with a value of hyperfine magnetic field on 57Fe probes, the hyperfine coupling constant A in Sc(Fe0.90Cu0.10)2 phases is estimated at about 11.6 T/μB at 8 K.
Wydawca

Czasopismo
Rocznik
Tom
60
Numer
1
Strony
155-160
Opis fizyczny
Daty
wydano
2015-03-01
otrzymano
2014-06-18
zaakceptowano
2014-11-05
online
2015-03-12
Twórcy
  • Institute of Physics, M. Curie-Skłodowska University, 1. M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6220, Fax: +48 81 537 6191, marek.wiertel@umcs.pl
  • Institute of Physics, M. Curie-Skłodowska University, 1. M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6220, Fax: +48 81 537 6191
  • Institute of Physics, M. Curie-Skłodowska University, 1. M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6220, Fax: +48 81 537 6191
  • Institute of Physics, M. Curie-Skłodowska University, 1. M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6220, Fax: +48 81 537 6191
  • Frank Laboratory of Neutron Physics Joint Institute for Nuclear Research, 141980 Dubna, Russia
Bibliografia
  • 1. Hilscher, G. (1982). Onset of magnetism in concentrated ternary alloys I. J. Magn. Magn. Mater., 25(3), 229–250. DOI: 10.1016/0304-8853(82)90071-3.[Crossref]
  • 2. Hilscher, G. (1982). Onset of magnetism in concentrated ternary alloys I. Laves phase compounds A(Fe1−xBx)2 (A=Y, Zr, U; B=Mn, Co and Al). J. Magn. Magn. Mater., 27(1), 1–31. DOI: 10.1016/0304-8853(82)90279-7.[Crossref]
  • 3. Al Alam, A. F., Matar, S. F., Ouaini, N., & Nakhl, M. (April 2008). Hydrogen insertion effects on the magnetic properties and chemical bonding within C14 Laves phases. Prog. Solid State Chem., 36(3), 192–212. DOI: 10.1016/j.progsolidstchem.2008.07.001.[Crossref]
  • 4. Pokatilov, V. S., Sadchikov, V. V., Sidokhin, E. F., & Utenkova, O. V. (1986). Structure and magnetic properties of Fe-Sc alloys. Fiz. Met. Metalloved., 62(1), 69–75.
  • 5. Gladyshevskii, E. I., Kotur, B. Y., Bodak, V. P., & Skvorchuk, V. P. (1977). Scandium-iron-silicon system. Dopov. Akad. Nauk Ukr. RSR, A, Fiz.-Tekh. Mat. Nauki (Ukrainian SSR), 39(8), 751–754.
  • 6. Niessen, A. K., & DeBoer, F. R. (1981) The enthalpy of formation of solid borides, carbides, nitrides, silicides, and phosphides of transition and noble metals. J. Less-Common Met., 82, 75–80. DOI: 10.1016/0022-5088(81)90200-9.[Crossref]
  • 7. Wiertel, M., Surowiec, Z., Beskrovnyi, A. I., Sarzyński, J., & Budzyński, M. (2005). Determination of magnetic moments and hyperfine fields in ScFe2 Laves phase compound. Annual Report Frank Laboratory of Neutron Physics. Dubna, Russian Federation: Joint Institute for Nuclear Research. Retrieved June 18, 2014 from: .
  • 8. Yamada, H. (1988). Electronic structure and magnetic properties of the cubic Laves phase transition metal compounds. Physica B+C, 149(1/3), 390–402. DOI: 10.1016/0378-4363(88)90270-7.[Crossref]
  • 9. Moriya, T. (1982). Spin fluctuations in ferromagnetic metals – temperature variation of local moment and short range order. J. Phys. Soc. Jpn., 51(2), 420–434. DOI: .[Crossref]
  • 10. Muraoka, Y., Shiga, M., & Nakamura, Y. (1979) Magnetic properties and Mössbauer effects of Zr(Fe1−xCox)2. J. Phys. F-Metal Phys., 9(9), 1889–1904. DOI: 10.1088/0305-4608/9/9/019.[Crossref]
  • 11. Reissner, R., Steiner, W. (1986). Electrostatic hyperfine interactions in Y(Fe1−xAlx)2. Hyperfine Interact., 28(1/4), 1017–1020. DOI: 10.1007/BF02061617.[Crossref]
  • 12. Sarzyński, J., Budzyński, M., Wasiewicz, R., & Wiertel, M. (1992). The influence of silicon on hyperfine magnetic fields in Zr(Fe1−xSix)2 measured for x ≤ 0.17. J. Phys.-Condens. Matter, 4(30), 6473–6478. DOI: 10.1088/0953-8984/4/30/014.
  • 13. Walker, L. R., Wertheim, G. K., & Jaccarino, V. (1961). Interpretation of the 57Fe isomer shift. Phys. Rev. Lett., 6(3), 98–101. DOI: .[Crossref]
  • 14. Kotur, B. Y., Gratz, E., Bauer, E., Hilscher, G., Kottar, A., Michor, H., Reichl, Ch., Wiesinger, G., & Markosyan, A. S. (1998). Magnetic and electrical properties of Sc(M1−xSix)2−y (M = Fe, Co, Ni). J. Alloy. Compd., 278(1/2), 49–59. DOI: 10.1016/S0925-8388(98)00642-2.[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_nuka-2015-0032
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.