Abstract
We investigate the magnetic properties of a mixed Ashkin–Teller model (spin-1/2 and spin-1) in a square lattice, under the effect of a crystal field, using the mean-field theory. Phase diagrams, magnetizations and free energy curves are presented. Besides the stable states of the order parameters, we also obtain the metastable and unstable states, which are shown in the phase diagrams and magnetization curves. The classification of the stable, metastable and unstable states is made by comparing their free-energy values.
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This manuscript has no associated data or the data will not be deposited. [Authors’ comment: This is a theoretical work in which all the important data is already present.]
References
J. Ashkin, E. Teller, Phys. Rev. 64, 178 (1943)
M. Sluiter, Y. Kawazoe, Sci. Rep. Inst. Tokohu Univ. A 40, 301 (1995)
C. Zhe, W. Ping, Z. Ying-Hong, Commun. Theor. Phys. 49, 525 (2008)
P. Bak, P. Kleban, W.N. Unertel, J. Ochab, G. Akinci, N.C. Barlet, T.L. Einstein, Phys. Rev. Lett. 54, 1542 (1985)
R.V. Ditzian, R.J. Banavar, G.S. Grest, L.P. Kadanoff, Phys. Rev. B 22, 2542 (1980)
Ü. Akinci, Phys. A 469, 740 (2017)
P.L. Christiano, S.G. Rosa, Phys. Rev. A 34, 730 (1986)
J.P. Santos, D.S. Rosa, F.C.S. Barreto, Phys. Lett. A 382, 272 (2018)
J.P. Santos, J.A.J. Avila, D.S. Rosa, R.M. Francisco, J. Magn. Magn. Mater. 469, 35 (2019)
J.P. Santos, F.C.S. Barreto, J. Magn. Magn. Mater. 401, 724 (2016)
J.P. Santos, F.C.S. Barreto, Phys. A 421, 316 (2015)
J.P. Santos, F.C.S. Barreto, Braz. J. Phys. 46, 70 (2016)
J.A. Plascak, F.C.S. Barreto, Phys. A 19, 2195 (1986)
P.M.C. Oliveira, F.C.S. Barreto, J. Stat. Phys. 57, 53 (1989)
P. Pawlicki, G. Musial, G. Kamieniarz, L. Debski, Phys. A 242, 281 (1997)
N. Benayad, A. Benyoussef, N. Boccara, A. El-Kenz, J. Phys. C 21, 5747 (1988)
P. Arnold, Y. Zhang, Nucl. Phys. B 501, 803 (1997)
Z. Wojtkowiak, G. Musial, J. Magn. Magn. Mater. 500, 166365 (2020)
D. Jeziorek-Kniola, Z. Wojtkowiak, G. Musial, Comput. Methods. Sci. Technol. 25, 31 (2019)
D. Jeziorek-Kniola, Z. Wojtkowiak, G. Musial, Acta Phys. Polo. A 133, 435 (2018)
Z. Wojtkowiak, G. Musial, Phys. A 513, 104 (2019)
D. Jeziorek-Kniola, G. Musial, L. Debski, J. Rogiers, S. Dylak, Acta Phys. Polo. A 121, 1105 (2012)
G. Musial, L. Debski, G. Kamieniarz, Phys. Rev. B 66, 012407 (2002)
G. Musial, Phys. Rev. B 69, 024407 (2004)
G. Musial, J. Rogiers, Phys. Status Solidi B 243, 335 (2006)
M. Blume, Phys. Rev. 141, 517 (1966)
H.W. Capel, Physica (Amsterdam) 32, 966 (1966)
H.W. Capel, Physica (Amsterdam) 33, 295 (1967)
H.W. Capel, Physica (Amsterdam) 37, 423 (1967)
K.N. Kudin, G.E. Scuseria, R.L. Martin, Phys. Rev. Lett. 89, 266402 (2002)
N. Lanata, Y. Yao, X. Deng, V. Dobrosavljevic, G. Kotliar, Phys. Rev. Lett. 118, 126401 (2017)
M. Blume, V.J. Emery, R.B. Griffiths, Phys. Rev. A 4, 1071 (1971)
I.D. Lawrie, S. Sarbach, Chapter 1: Theory of Tricritical Points . in Phase Transitions and Critical Phenomena, vol. 9, ed. by: C. Domb, J.L. Lebowitz (Academic, London, 1984), pp. 2–155
N.B. Wilding, P. Nielaba, Phys. Rev. E 53, 926 (1996)
M. Jaime et al., Nat. Commun. 8, 99 (2017)
N.G. Fytas, J. Zierenberg, P.E. Theodorakis, M. Weigel, W. Janke, A. Malakis, Phys. Rev. E 97, 040102 (2018)
E. Vatansever, Z.D. Vatansever, P.E. Theodorakis, N.G. Fytas, Phys. Rev. E 102, 062138 (2020)
R.M. Francisco, J.J. Carvalho, G.Y. Oyadomari, J.P. Santos, Phys. A 531, 121819 (2019)
M. Loulidi, Phys. Rev. B 55, 17 (1997)
M. Badehdah, S. Bekhechi, A. Benyoussef, B. Ettaki, Phys. Rev. B 59, 6250 (1999)
P. Ndizeye, F. Hontinfinde, B. Kounouhewa, S. Bekhechi, Cent. Eur. J. Phys. 12, 375 (2014)
R. Boudefla, S. Bekhechi, F. Hontinfinde, Condens. Mater. Phys. 18, 33703 (2015)
V.M. Rozenbaum, JETP Lett. 78, 34 (2003)
T. Horiguchi, Y. Honda, Prog. Theor. Phys. 93, 981 (1995)
Z. Amimer, S. Bekhechi, B.N. Brahmi, R. Boude, H. Ez-Zahraouy, A. Rachadi, Condens. Mater. Phys. 23, 33707 (2020)
S. Bekhechi, A. Benyoussef, A. El-Kenz, B. Ettaki, M. Loulidi, Eur. Phys. J. B 18, 275 (2000)
H. Jones, Rapid Solidification of Metals and Alloys (Institution of Metallurgists, London, 1982)
F. Spaepen, A. I. Taub, Chapter 13: Flow and fracture. in Amorphous metallic alloy, single volume, ed. by F.E. Luborsky (Butterworths, London, 1983), pp. 231–256
R. L. Ashbrook (ed.), Rapid solidification technology - source book (American Society for Metals, Metals Park, Ohio, 1983)
J.D. Gunton, M. Droz, Introduction to the Theory of Metastable and Unstable States (Springer, Berlin, 1983)
J. D. Gunton, M. San Miguel, P.S. Sahni, Chapter 3: The dynamics of first-order phase transition. in Phase Transitions and Critical Phenomena, vol. 8, ed. by: C. Domb, J.L. Lebowitz (Academic Press, New York, 1983), pp. 269–467
C. Ekiz, M. Keskin, O. Yalçin, Phys. A 293, 215 (2001)
J.P. Santos, F.C.S. Barreto, D.S. Rosa, J. Magn. Magn. Mater. 423, 175 (2017)
C. Ekiz, M. Keskin, Phys. Rev. B 66, 054105 (2002)
R.G.B. Mendes, F.C.S. Barreto, J.P. Santos, Braz. J. Phys. 48, 137 (2018)
R.G.B. Mendes, F.C.S. Barreto, J.P. Santos, Phys. A 505, 1186 (2018)
N.N. Bogoliubov, J. Phys. (USSR) 11, 23 (1947)
Acknowledgements
R. M. F. acknowledges financial support from FAPEMIG/Brazil (No. 11608—FAPEMIG/Brazil). J. P. S. would like to thank the Brazilian agencies CNPq (No. 306404/2019-2) for financial support.
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Santos, J.P., Nascimento, G.B.B., Resende, K.L.A. et al. Phase diagrams and magnetization curves of the mixed Ashkin–Teller model including metastable and unstable states. Eur. Phys. J. B 94, 136 (2021). https://doi.org/10.1140/epjb/s10051-021-00143-6
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DOI: https://doi.org/10.1140/epjb/s10051-021-00143-6