ESR Study of Novel Room-Temperature Ferromagnetic Semiconductors Pb1-X-YSnxCryTe

E.A. Zvereva; O.A. Savelieva; S. Ibragimov; E. Samokhvalov; E.I. Slynko; V.E. Slyn'ko

doi:10.4028/www.scientific.net/SSP.168-169.404

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Magnetic Domain Structure and Magnetic Reversal Process of (R,Zr)(Co,Cu,Fe)z Heterogeneous Nanocrystalline Alloys
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Microstructure and Magnetic Hysteresis in Nanocrystalline Nd-Fe-Co-B Alloys on the Base of Nd₂Fe₁₄B Phase
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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169ESR Study of Novel Room-Temperature Ferromagnetic...

ESR Study of Novel Room-Temperature Ferromagnetic Semiconductors Pb_1-X-YSn_xCr_yTe

Abstract:

We report on the magnetic properties of novel diluted magnetic semiconductors Pb1 x ySnxCryTe revealing ferromagnetism at temperatures higher than room temperature. Depending on chromium concentration the Curie temperature varies in a wide range (150360 K) and effective magnetic moment achieves 1 B upon an increase of chromium doping level. Electron spin resonance (ESR) spectra in the paramagnetic phase were satisfactory approximated by a single Dysonian line. Effective g-factor tends to the saturation value g=2.080.01, while the linewidth passes through a minimum in the vicinity of magnetic ordering transition and then broadens with an increase of the temperature. In ferromagnetic phase the pronounced distortion and splitting of the ESR spectra into two lines occurs due to additional ferromagnetic contribution to absorption.

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Periodical:

Solid State Phenomena (Volumes 168-169)

Pages:

404-407

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.168-169.404

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Online since:

December 2010

Authors:

E.A. Zvereva, O.A. Savelieva, S. Ibragimov, E. Samokhvalov, E.I. Slynko, V.E. Slyn'ko

Keywords:

Diluted Magnetic Semiconductor (DMS), Effective G-Factor, Electron Spin Resonance, Ferromagnetism

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References

[1] T. Story, E. Grodzicka, B. Witkowska, J. Gorecka and W. Dobrowolski: Acta Phys. Polon. A Vol. 82 (1992), p.879.

Google Scholar

[2] W. Mac, T. Story and A. Twardowski: Acta Phys. Polon. A Vol. 87 (1995), p.492.

Google Scholar

[3] E.A. Zvereva, E.P. Skipetrov, O.A. Savelieva, N.A. Pichugin, A.E. Primenko, E.I. Slyn'ko and V.E. Slyn'ko: J. Phys.: Conf. Ser. Vol. 200 (2010), p.062039.

DOI: 10.1088/1742-6596/200/6/062039

Google Scholar

[4] E.P. Skipetrov, M.G. Mikheev, F.A. Pakpour, L.A. Skipetrova, N.A. Pichugin, E.I. Slyn'ko, and V.E. Slyn'ko: Semiconductors Vol. 43 (2009), p.297.

DOI: 10.1134/s1063782609030075

Google Scholar

[5] E.P. Skipetrov, E.A. Zvereva, N.A. Pichugin, A.E. Primenko, E.I. Slyn'ko and V.E. Slyn'ko, in: Novel Materials and Devices for Spintronics, edited by O.G. Heinonen, S. Sanvito, V.A. Dediu, N. Rizzo, Mater. Res. Soc. Symp. Proc., Warrendale, PA (2009).

Google Scholar

[6] J. Blinowski, P. Kacman and J.A. Majewski: Phys. Rev. B Vol. 53 (1996), p.9524.

Google Scholar

[7] V.K. Dugaev, V.I. Litvinov, J. Barnas, A.H. Slobodskyy, W. Dobrowolski and M. Vieira: J. Supercond.: Incorporated Novel Magnetism Vol. 16 (2003), p.67.

Google Scholar