[1] M.B. Salamon, P. Lin, and S.H. Chun: Phys. Rev. Lett., 2002, vol. 88, art. no. 197203.

[2] J. Burgy, M. Mayr, V. Martin-Mayor, A. Moreo, and E. Dagotto: Phys. Rev. Lett., 2001, vol. 87, art. no. 277202.

[3] [3]P. T. Phong, L. T. T. Ngan, N. V. Dang, L. H. Nguyen, P. H. Nam, D. M. Thuy, N. D. Tuan, L. V. Bau, and I.–J. Lee: J. Magn. Magn. Mater., 2018, vol. 449, pp. 558-66.

[4] [4]M. Pekala, K. Pekala, J. Szydlowska, and V. Drozd: J. Alloys Compd., 2017, vol. 685, pp. 237-41.

[5] P. T. Phong, L. T. T. Ngan, L. V. Bau, N. M. An, L. T. H. Phong, N. V. Dang, and I.-J. Lee: Metall. Mater. Trans. A, 2018, vol. 49, pp. 385-94.

[6] [6]D. Cao, F. Bridges, M. Anderson, A. P. Ramirez, M. Olapinski, M. A. Subramanian, C. H. Booth, and G. H. Kwei: Phys. Rev. B, 2001, vol. 64, pp. 184-409.

[7] R. Nag, B. Sarkar, and S. Pal: J. Mater. Sci. 2019, vol. 30, pp. 3405-10.

[8] [8]J. A. Saleh, I. A. Sarsari, P. Kameli, and H. Salamati: J. Magn. Magn. Mater., 2018, vol. 465, pp. 339-47.

[9] [9]M. Iqbal, M. N. Khan, A. A. Khan, and N. Jafar: J. Alloys Compds., 2018, vol. 769, pp. 766-76.

[10] [10]S. Gupta, G. Sharma, V. R. Reddy, V. G. Sathe, and V. Siruguri: J. Magn. Magn. Mater., 2019, vol. 482, pp. 38-43.

[11] B. Sathyamoorthy, A. Raja, and G. Chandrasekaran: J. Mater. Sci., 2018, vol. 29, pp. 16338-47.

[12] [12]S. M. Zhou, Y. Li, Y. Q. Guo, J. Y. Zhao, X. Cai, and L. Shi: J. Appl. Phys., 2013, vol. 114, pp. 163-903.

[13] C. He, M.A. Torija, J. Wu, J.W. Lynn, H. Zheng, J.F. Mitchell, and C. Leighton: Phys. Rev. B, 2007, vol. 76, art. no. 014401.

[14] J. Burgy, M. Mayr, V. Martin-Mayor, A. Moreo, and E. Dagotto: Phys. Rev. Lett., 2001, vol. 87, art. no. 277202.

[15] [15]Y. Ying, T. W. Eom, N. V. Dai, and Y. P. Lee: J. Magn. Magn. Mater., 2011, vol. 323, pp. 94-100.

[16] D.N.H. Nam, L.V. Bau, N.V. Khiem, N.V. Dai, L.V. Hong, N.X. Phuc, R.S. Newrock, and P. Nordblad: Phys. Rev. B, 2006, vol. 73, art. no. 184430.

[17] [17]X. J. Fan, J. H. Zhang, X. G. Li, W. B. Wu, J. Y. Wan, T. J. Lee, and H. C. Ku: J. Phys.: Condens. Matter, 1999, vol. 11, pp. 3141-48.

[18] J. A. Mydosh: Spin glasses, an experimental introduction, Taylor & Francis, London (1993)

[19] J.A. Mydosh: Rep. Prog. Phys., 2015, vol. 78, art. no. 052501.

[20] [19]D. N. H. Nam, R. Mathieu, P. Nordblad, N. V. Khiem, and N. X. Phuc: Phys. Rev. B, 2000, vol. 62, pp. 8989-95.

[21] [20]S. Mukherjee, R. Ranganathan, P. S. Anikumar, and P. A. Joy: Phys. Rev. B, 1996, vol. 54, pp. 9267-74.

[22] [21]M. Itoh, I. Natori, S. Kubota, and K. Motoya: J. Magn. Magn. Mater., 1995, vol. 140-144, pp. 1811-12.

[23] [22]D. N. H. Nam, K. Jonason, P. Nordbald, N. V. Khiem, and N. X. Phuc: Phys. Rev. B, 1999, vol. 59, pp. 4189-94.

[24] N. Khan, A. Midya, P. Mandal, and D. Prabhakaran: J. Appl. Phys., 2013, vol. 113, art. no. 183909.

[25] [24]M. Itoh, I. Natori, S. Kubota, and K. Motoya: J. Phys. Soc. Jpn., 1994, vol. 63, pp. 1486-93.

[26] [25]I. O. Troyanchuk, M. V. Bushinsky, D. V. Karpinsky, V. V. Sikolenko, A. N. Chobot, N. V. Tereshko, O. S. Mantytskaya, and S. Schorr: J. Exp. Theor. Phys., 2017, vol. 125, pp. 290-97.

[27] A.K. Pramanik and A. Banerjee: Phys. Rev. B, 2010, vol. 81, art. no. 024431.

[28] W. Jiang, X. Zhou, and G. Williams: Phys. Rev. B, 2008, vol. 77, art. no. 064424.

[29] A. Karmakar, S. Majumdar, S. Kundu, T.K. Nath, and S. Giri: J. Phys., 2012, vol. 24, art. no. 126003.

[30] [29]P. T. Phong, D. H. Manh, L. C. Hoan, T. V. Ngai, N. X. Phuc, and I.–J. Lee: J. Alloys Compd., 2016, vol. 662, pp. 557-65.

[31] H. Zhang, Q. Li, H. Liu, L. Chen, Y. Chen, and Y. Li: IEEE Trans. Magn. 2010, vol. 46, pp. 1483-86.

[32] [31]M. Pekala, K. Pekala, J. Szydlowska, and V. Drozd: J. Magn. Magn. Mater., 2019, vol. 475, pp. 189-94.

[33] [32]D. Bhoi, N. Khan, A. Midya, M. Nandi, A. Hassen, P. Choudhury, and P. Mandal: J. Phys. Chem. C, 2013, vol. 117, pp. 16658-58.

[34] D. Phelan, J. Yu, and D. Louca: Phys. Rev. B, 2008, vol. 78, art. no. 094108.

[35] [34]N. Gayathri, A. K. Raychaudhuri, and S. K. Tiwary: Phys. Rev. B, 1997, vol. 56, pp. 1345-53.

[36] M. Rubinstein, T.M. Tritt, and J.E. Synder: J. Appl. Phys., 1997, vol. 81, art. no. 4974.

[37] W. Jiang, X. Zhou, and G. Williams: Europhys. Lett., 2008, vol. 84, art. no. 47009.