To specify what triggers the magnetostructural transition in CeFe2 doped with silicon, the temperature dependences of the magnetization, as well as the initial magnetic susceptibility and field dependences of the magnetization of the rare-earth intermetallic compounds Ce(Fe1 – xSix)2 with the silicon content x ≤ 0.05, were measured. The transition temperature to the magnetically ordered state and the average magnetic moment at Fe atoms were determined, and the magnetic contribution to the entropy change was estimated. Mössbauer spectra of Ce(Fe1 – xSix)2 (x ≤ 0.05) in the paramagnetic state were measured with a discretization of velocity scale of 512 channels, processing of which served to confirm the earlier suggested local ordering of Si atoms in the Fe sublattice.
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K. H. J. Buschow and J. S. van Wieringen, “Crystal structure and magnetic properties of cerium-iron compounds,” Phys. Status Solidi 42, No. 1, 231–239 (1970).
K. H. J. Buschow and R. P. van Stapele, “Magnetic properties of the intermetallic compounds RFe2,” J. Phys. Colloq. 32, 672–674 (1971).
A. M. van Diepen and K. H. J. Buschow, “Hydrogen absorption in CeFe2 and ThFe3,” Solid State Commun. 22, No. 2, 113–115 (1977).
L. Paolasini, B. Ouladdiaf, N. Bernhoeft, J. P. Sanchez, P. Vulliet, G. H. Lander, and P. Canfield, “Magnetic ground state of pure and doped CeFe2,” Phys. Rev. Lett. 90, No. 5, 057201-1-4 (2003).
L. Paolasini, S. Di Matteo, P. P. Deen, S. Wilkins, C. Mazzoli, B. Detlefs, G. Lapertot, and P. Canfield, “Resonant magnetic X-ray scattering in the antiferromagnet Ce(Fe1 – xCox)2,” Phys. Rev. B 77, No. 9, 094433-1–11 (2008).
A. Haldar, K. G. Suresh, A. K. Nigam, A. A. Coelho, and S. Gama, “Stabilization of antiferromagnetism in CeFe2 alloys: the effects of chemical and hydrostatic pressure,” J. Phys. Condens. Matter 21, No. 49, 496003-1-6 (2009).
J. Wang, Y. Feng, R. Jaramillo, J. Van Wezel, P. C. Canfield, and T. F. Rosenbaum, “Pressure tuning of competing magnetic interactions in intermetallic CeFe2,” Phys. Rev. B 86, No. 1, 014422-1–7 (2012).
S. B. Roy and B. R. Coles, “The instability of ferromagnetism in CeFe2: Effects of Al substitution,” J. Phys. F Met. Phys. 17, 215–220 (1987).
A. K. Grover, R. G. Pillay, V. Balasubramanian, and P. N. Tandon, “Frustration of Fe moments in CeFe2 matrix,” Solid State Commun. 67, No. 12, 1223–1227 (1988).
S. J. Kennedy and B. R. Coles, “The magnetic phases of pseudobinary Ce(Fe1 – xMx)2 intermetallic compounds; M = Al, Co, Ru,” J. Phys. Condens. Matter 2, No. 5, 1213–1222 (1990).
A. Haldar, K. G. Suresh, and A. K. Nigam, “Magnetism in gallium-doped CeFe2: Martensitic scenario,” Phys. Rev. B 78, No. 14, 144429-1–8 (2008).
A. Haldar, N. K. Singh, Y. Mudryk, K. G. Suresh, A. K. Nigam, and V. K. Pecharsky, “Temperature and magnetic field induced structural transformation in Si-doped CeFe2: An in-field X-ray diffraction study,” Solid State Commun. 150, No. 17–18, 879–883 (2010).
A. V. Deryagin, A. A. Kazakov, N. V. Kudrevatykh, V. N. Moskalev, N. V. Mushnikov, and S. V. Terent’ev, “Magnetic moment, magnetostriction and effective field on Fe nuclei in CeFe2, LuFe2 and their hydrides,” Fiz. Met. Metalloved. 60, No. 2, 295–300 (1985).
A. Haldar, A. Das, A.Hoser, T. Hofmann, A.K. Nayak, K.G. Suresh, and A.K. Nigam, “High field neutron diffraction study in Ce(Fe0.95Si0.05)2 compound,” J. Appl. Phys. 109, No. 7, 07E125-1–3 (2011).
P. N. Tandon, R. G. Pillay, A. K. Grover, and V. Balasubramanian, “Impurity induced Fe spin reorientation in CeFe2,” Hyperfine Interact. 50, No. 1–4, 733–740 (1989).
A. V. Vershinin, V. V. Serikov, N. M. Kleinerman, N. V. Mushnikov, E. G. Gerasimov, V. S. Gaviko, and A. V. Proshkin, “Magnetic phase transitions in the Ce(Fe1 – xSix)2 compounds,” Phys. Met. Metallogr. 115, No. 12, 1276–1283 (2014).
A. V. Vershinin, S. P. Naumov, V. V. Serikov, N. M. Kleinerman, N. V. Mushnikov, and V. S. Rusakov, “Hyperfine-interaction parameters and magnetic phase antiferromagnet–ferromagnet transition in Ce(Fe1 – xSix)2,” Phys. Met. Metallogr. 117, No. 12, 1185–1191 (2016).
V. S. Rusakov, V. S. Pokatilov, T. V. Gubaidulina, and M. E. Matsnev, “Hyperfine magnetic fields at the nuclei of 57Fe in the intermetallic system Zr1 – xScxFe2,” Phys. Met. Metallogr. 120, No. 4, 339–344 (2019).
M. E. Matsnev and V. S. Rusakov, “SpectrRelax: An application for Mössbauer spectra modeling and fitting,” AIP Conf. Proc. 1489, 178–185 (2012).
S. P. Naumov, N. V. Mushnikov, P. B. Terentev, M. I. Oshtrakh, and N. M. Kleinerman, “On the nature of the magnetostructural phase transition in Ce(Fe1 – xSix)2,” J. Alloys Compd. 893, 162198-1-7 (2022).
B. L. Ahuja, T. Ramesh, B. K. Sharma, P. Chaddah, S. B. Roy, Y. Kakutani, A. Koizumi, N. Hiraoka, M. Toutani, N. Sakai, Y. Sakurai, and M. Itou, “Temperature-dependent magnetic Compton scattering study of spin moments in Ce(Fe0.96Ru0.04)2,” Phys. Rev. B 66, 012411-1-4 (2002).
B. L. Ahuja, B. K. Sharma, V. Purvia, S. Tiwari, A. Koizumi, T. Nagao, Y. Sakurai, and N. Sakai, “Spin dependent Compton scattering study of magnetic transitions in Ir doped CeFe2,” J. Appl. Phys. 108, 043902-1-5 (2010).
E. G. Gerasimov, N. V. Mushnikov, P. B. Terentev, V. S. Gaviko, and A. A. Inishev, “Magnetic properties of the off-stoichiometric GdNi2Mnx alloys,” J. Alloys Compd. 571, 132–137 (2013).
A. Gschneidner, V. K. Pecharsky, and A. O. Tsokol, “Recent developments in magnetocaloric materials,” Rep. Prog. Phys. 68, No. 6, 1479–1539 (2005).
D. H. Wang, S. L. Tang, H. D. Liu, W. L. Gao, and Y. W. Du, “Large low-field magnetic entropy change in DyCo2,” Intermetallics 10, No. 8, 819–821 (2002).
A. Haldar, K. G. Suresh, and A. K. Nigam, “Magnetic and magnetocaloric properties of Ce1 – xRxFe2 and Ce(Fe1 – xMx)2 compounds,” J. Phys. D: Appl. Phys. 43, No. 28, 285004-1-6 (2010).
Structural attestation of the samples, magnetic and Mossbauer measurements were carried out in the Collaborative Access Center of the Institute of Metal Physics, Ural Branch, RAS. The study was performed in terms of state assignment of the Ministry of Science and Higher Education of the Russian Federation on theme Magnet (no. АААА-А18-118020290129-5) and in part was supported by the Russian Foundation for Basic Research and government of Sverdlovsk region (project no. 20-42-660008).
The authors declare that they have no conflicts of interest.
Translated by N. Kolchugina
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Naumov, S.P., Mushnikov, N.V., Terentev, P.B. et al. Magnetic Properties and Local Atomic Ordering in Ce(Fe1 – xSix)2 Compounds with a Silicon Content x ≤ 0.05. Phys. Metals Metallogr. 123, 552–558 (2022). https://doi.org/10.1134/S0031918X22060114
- cubic Laves phase
- rare-earth intermetallics
- magnetic susceptibility
- magnetocaloric effect
- Mössbauer spectroscopy