Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-13T10:55:41.591Z Has data issue: false hasContentIssue false
  • English
  • Français

Exchange bias and training effect in NiCr2O4/Cr2O3 composite

Published online by Cambridge University Press:  16 September 2015

Wang Liguang ,
Zhu Changming ,
Tian Zhaoming  and
Yuan Songliu
Wang Liguang
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
Zhu Changming
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
Tian Zhaoming
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
Yuan Songliu*
Affiliation:
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

NiCr2O4/Cr2O3 system with ferrimagnetic spinel and antiferromagnetic transition metal oxide has been firstly synthesized by a chemical co-precipitation method. Magnetic measurements on this system also exhibit the exchange bias (EB) and training effect for the first time. EB effect with evident shift of coercive field and remnant magnetization can be detected at low temperature after field cooling from 350 K. The EB field can reach about 2037 Oe and the magnetization shift is as large as 0.129 emu/g at 10 K. Furthermore, EB effect recedes gradually with temperature increasing and disappears at about 70 K. In this process, EB field decreases with a linear dependence on the magnetization shift. This EB behavior is discussed according to the disordered regions existed at the interface between NiCr2O4 and Cr2O3. In addition, we have analyzed the training effect, which indicates the coexistence of two distinct forms of training mechanism during cycle procedure. One is concerned with an athermal impact resulting in the abrupt single cycle training and the other is gradual reduction of EB field during the subsequent cycles due to the conventional thermal activation mechanism.

Keywords

ceramicmagnetic propertiescomposite
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 21 , 13 November 2015 , pp. 3252 - 3258
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Contributing Editor: Michael E. McHenry

References

REFERENCES

Berkowitz, A.E. and Takano, K.: Exchange anisotropy—A review. J. Magn. Magn. Mater. 200, 552 (1999).CrossRefGoogle Scholar
Das, S., Patra, M., Majumdar, S., and Giri, S.: Exchange bias effect at the irregular interfaces between Co and CoO nanostructures. J. Alloys Compd. 488, 27 (2009).CrossRefGoogle Scholar
Meiklejohn, W.H. and Bean, C.P.: New magnetic anisotropy. Phys. Rev. 102, 1413 (1956).CrossRefGoogle Scholar
Dieny, B., Speriosu, V.S., Parkin, S.S.P., Gurney, B.A., Wilhoit, D.R., and Mauri, D.: Giant magnetoresistance in soft ferromagnetic multilayers. Phys. Rev. B 43, 1297 (1991).CrossRefGoogle ScholarPubMed
Kools, J.C.S.: Exchange-biased spin-valves for magnetic storage. IEEE Trans. Magn. 32, 3165 (1996).CrossRefGoogle Scholar
Zheng, R.K., Wen, G.H., Fung, K.K., and Zhang, X.X.: Training effect of exchange bias in γ-Fe2O3 coated Fe nanoparticles. Phys. Rev. B 69, 214431 (2004).CrossRefGoogle Scholar
Guo, S., Liu, W., Meng, H., Liu, X.H., Gong, W.J., Han, Z., and Zhang, Z.D.: Exchange bias and its training effect in Ni/NiO nanocomposites. J. Alloys Compd. 497, 10 (2010).CrossRefGoogle Scholar
Nogués, J. and Schuller, I.K.: Exchange bias. J. Magn. Magn. Mater. 192, 203 (1999).CrossRefGoogle Scholar
Skumryev, V., Stoyanov, S., Zhang, Y., Hadjipanayis, G., Givord, D., and Nogués, J.: Beating the superparamagnetic limit with exchange bias. Nature 423, 850 (2003).Google Scholar
Mishra, S.R., Dubenko, I., Griffis, J., Ali, N., and Marasinghe, K.: Exchange bias effect in ball milled Co–Cr2O3 FM–AFM nanocomposites. J. Alloys Compd. 485, 667 (2009).Google Scholar
Yi, J.B., Ding, J., Zhao, Z.L., and Liu, B.H.: High coercivity and exchange coupling of Ni/NiO nanocomposite film. J. Appl. Phys. 97, 10K306 (2005).Google Scholar
Ptak, M., Maczka, M., Gagor, A., Pikul, A., Macalik, L., and Hanuza, J.: Temperature-dependent XRD, IR, magnetic, SEM and TEM studies of Jahn–Teller distorted NiCr2O4 powders. J. Solid State Chem. 201, 270 (2013).CrossRefGoogle Scholar
Suchomel, M.R., Shoemaker, D.P., Ribaud, L., Kemei, M.C., and Seshadri, R.: Spin-induced symmetry breaking in orbitally ordered NiCr2O4 and CuCr2O4 . Phys. Rev. B 86, 054406 (2012).Google Scholar
Mcguire, T.R., Scott, E.J., and Grannis, F.H.: Antiferromagnetism in a Cr2O3 crystal. Phys. Rev. 102, 1000 (1956).Google Scholar
Tian, Z.M., Yuan, S.L., Yin, S.Y., Liu, L., He, J.H., Duan, H.N., Li, P., and Wang, C.H.: Exchange bias effect in a granular system of NiFe2O4 nanoparticles embedded in an antiferromagnetic NiO matrix. Appl. Phys. Lett. 93, 222505 (2008).CrossRefGoogle Scholar
Tadic, M., Savic, S.M., Jaglicic, Z., Vojisavljevic, K., Radojkovic, A., Prsic, S., and Nikolic, D.: Magnetic properties of NiMn2O4−δ (nickel manganite): Multiple magnetic phase transitions and exchange bias effect. J. Alloys Compd. 588, 465 (2014).Google Scholar
Gruyters, M. and Schmitz, D.: Microscopic nature of ferro- and antiferromagnetic interface coupling of uncompensated magnetic moments in exchange bias systems. Phys. Rev. Lett. 100, 077205 (2008).Google Scholar
Qiu, X.P., Yang, D.Z., Zhou, S.M., Chantrell, R., O’Grady, K., Nowak, U., Du, J., Bai, X.J., and Sun, L.: Rotation of the pinning direction in the exchange bias training effect in polycrystalline NiFe/FeMn bilayers. Phys. Rev. Lett. 101, 147207 (2008).Google Scholar
Barman, J., Bora, T., and Ravi, S.: Study of exchange bias and training effect in NiCr2O4 . J. Magn. Magn. Mater. 385, 93 (2015).Google Scholar
Singh, H., Chakraborty, T., Srikanth, K., Chandra, R., Mitra, C., and Kumar, U.: Study of exchange bias in NiCr2O4 nanoparticles. Phys. B 448, 77 (2014).CrossRefGoogle Scholar
Hochstrat, A., Binek, Ch., and Kleemann, W.: Training of the exchange-bias effect in NiO–Fe heterostructures. Phys. Rev. B 66, 092409 (2002).Google Scholar
Hoffmann, A.: Symmetry driven irreversibilities at ferromagnetic–antiferromagnetic interfaces. Phys. Rev. Lett. 93, 097203 (2004).Google Scholar
Paccard, D., Schlenker, C., Massenet, O., Montmory, R., and Yelon, A.: A new property of ferromagnetic–antiferromagnetic coupling. Phys. Status Solidi 16, 301 (1966).Google Scholar
Chan, M.K., Parker, J.S., Crowell, P.A., and Leighton, C.: Identification and separation of two distinct contributions to the training effect in polycrystalline Co/FeMn bilayers. Phys. Rev. B 77, 014420 (2008).CrossRefGoogle Scholar
Dias, T., Menéndez, E., Liu, H., Haesendonck, C.V., Vantomme, A., Temst, K., Schmidt, J.E., Giulian, R., and Geshev, J.: Rotatable anisotropy driven training effects in exchange biased Co/CoO films. J. Appl. Phys. 115, 243903 (2014).CrossRefGoogle Scholar