Bulk to nanoscale magnetism and exchange bias in CuO nanoparticles

Physical Review B - Condensed Matter and Materials Physics

Volumn 64, Issue 17, 2001, Pages

  Punnoose, A ^a   Magnone, H ^a   Seehra, M S ^a   Bonevich, J ^b  

^a WEST VIRGINIA UNIVERSITY   (United States)

^b NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALLOY; COBALT DERIVATIVE; COPPER DERIVATIVE; OXIDE;

ARTICLE; COOLING; HIGH TEMPERATURE; HYSTERESIS; MAGNETIC FIELD; MAGNETISM; NANOPARTICLE; PARTICLE SIZE; STRUCTURE ANALYSIS; SYNTHESIS; TEMPERATURE DEPENDENCE; TRANSMISSION ELECTRON MICROSCOPY; X RAY DIFFRACTION;

EID: 0000019717     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.64.174420     Document Type: Article

References (37)

1. See various papers in Magnetic Properties of Fine Particles, edited by J. L. Dormann and D. Fiorani (Elsevier Science, Amsterdam, 1992);
2. Nanophase Materials: Synthesis, Properties, Applications, edited by G. C. Hadjipanayis and R. W. Siegel (Kluwer, Dordrecht, 1994).
3. D E. Speliotis, J. Magn. Magn. Mater.193, 29 (1999).
4. R H. Kodama and A E. Berkowitz, Phys. Rev. B59, 6321 (1999).
5. L. Néel, in Low Temperature Physics, edited by C. Dewitt, B. Dreyfus, and P. G. de Gennes (Gordon and Breach, New York, 1962), p. 413.
6. S A. Makhlouf, F T. Parker, and A E. Berkowitz, Phys. Rev. B55, R14 717 (1997).
7. S A. Makhlouf, F T. Parker, F E. Spada, and A E. Berkowitz, J. Appl. Phys.81, 5561 (1997).
8. M S. Seehra, V S. Babu, A. Manivannan, and J W. Lynn, Phys. Rev. B61, 3513 (2000).
9. S. Gider, D D. Awschalom, T. Douglas, S. Mann, and M. Chaparala, Science268, 77 (1995).
10. R. Zysler, D. Fiorani, J L. Dormann, and A M. Testa, J. Magn. Magn. Mater.13, 71 (1994).
11. M M. Ibrahim, J. Zhao, and M S. Seehra, J. Mater. Res.7, 1856 (1992).
12. J L. Jambor and J E. Dutrizac, Chem. Rev.98, 2549 (1998).
13. S. Asbrink and L.-J. Norrby, Acta Crystallogr., Sect. B: Struct. Crystallogr. Cryst. Chem.26, 8 (1970).
14. M. O’Keeffe and F S. Stone, J. Phys. Chem. Solids23, 261 (1962).
15. M S. Seehra, Z. Feng, and R. Gopalakrishnan, J. Phys. C21, 1051 (1988).
16. D D. Lawrie, J P. Frank, and C-T. Lin, Physica C297, 59 (1998).
17. J W. Loram, K A. Mirza, C P. Joysce, and A J. Osborne, Europhys. Lett.8, 263 (1989).
18. S B. Ota and E. Gmelin, Phys. Rev. B46, 11 632 (1992).
19. J B. Forsyth, P J. Brown, and B M. Wanklyn, J. Phys. C21, 2917 (1988);
20. M. Ain, A. Menelle, B M. Wanklyn, and E F. Bertaut, J. Phys.: Condens. Matter4, 5327 (1992);
21. B X. Yang, T R. Thurston, J M. Tranquada, and G. Shirane, Phys. Rev. B39, 4343 (1989).
22. O. Kondo, M. Ono, E. Sugiura, K. Sugiyama, and M. Date, J. Phys. Soc. Jpn.57, 3293 (1988);
23. J. Phys. Soc. Jpn.K. Kindo, M. Honda, T. Kohashi, and M. Date, 59, 2332 (1990).
24. T V C. Rao and V C. Sahni, J. Phys.: Condens. Matter6, L423 (1994).
25. J. Kobler and T. Chattopadhay, Z. Phys. B: Condens. Matter82, 383 (1991).
26. K. Borgohain, J B. Singh, M V. Rama Rao, T. Sripathi, and S. Mahamuni, Phys. Rev. B61, 11 093 (2000).
27. V R. Palkar, P. Ayyub, S. Chattopadhay, and M. Multani, Phys. Rev. B53, 2167 (1996).
28. P. Ayyub, V R. Palkar, S. Chattopadhay, and M. Multani, Phys. Rev. B51, 6135 (1995).
29. For ZFC, after cooling the sample to 5 K in (formula presented) M is measured with increasing T in (formula presented) For FC, the data are taken with decreasing T starting from 350 K.
30. M E. Fisher, Philos. Mag.7, 1731 (1962);
31. E E. Bragg and M S. Seehra, Phys. Rev. B7, 4197 (1973).
32. D. Bloch, J. Phys. Chem. Solids27, 881 (1966): The experimental results in this reference yield (formula presented) where R is the distance between magnetic ions assuming (formula presented) The larger magnitude of (formula presented) observed here in CuO may reflect contributions from the finite-size effects which usually begin to become important below about 10 nm;
33. see, e.g., P. Poulopoulos and K. Baberschke, J. Phys.: Condens. Matter11, 9495 (1999).
34. J T. Richardson, D L. Yiagas, B. Turk, K. Forster, and M V. Twigg, J. Appl. Phys.70, 6977 (1991).
35. See the reviews by A E. Berkowitz and K. Takano, J. Magn. Magn. Mater.200, 552 (1999);
36. J. Magn. Magn. Mater.J. Nogues and I K. Schuller, 192, 203 (1999).
37. T J. Moran, J M. Gallego, and I K. Schuller, J. Appl. Phys.78, 1887 (1995).