Hard magnetic ferrite with a gigantic coercivity and high frequency millimetre wave rotation

Nature Communications

Volumn 3, Issue , 2012, Pages

  Namai, Asuka ^a   Yoshikiyo, Marie ^a   Yamada, Kana ^a   Sakurai, Shunsuke ^a   Goto, Takashi ^b   Yoshida, Takayuki ^b   Miyazaki, Tatsuro ^b   Nakajima, Makoto ^a   Suemoto, Tohru ^a   Tokoro, Hiroko ^a   Ohkoshi, Shin Ichi ^a,c  

^a UNIVERSITY OF TOKYO   (Japan)

^b Dowa Electronics Materials Co Ltd   (Japan)

^c JAPAN SCIENCE AND TECHNOLOGY AGENCY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

IRON OXIDE; NANOMATERIAL; RHODIUM; SILICON DIOXIDE;

ABSORPTION; ARTICLE; CRYSTALLOGRAPHY; MAGNET; POLARIZATION; ROOM TEMPERATURE; SYNTHESIS; WIRELESS COMMUNICATION;

EID: 84867011466     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms2038     Document Type: Article

References (42)

1. Standley, K. J. Oxide Magnetic Materials (Clarendon Press, Oxford, 1972).
2. Buschow, K. H. J. Hand Book of Magnetic Materials Vol. 20 (Elsevier, Oxford, 2012).
3. Chikazumi, S. Physics of Ferromagnetism (Oxford University Press, New York, 1997).
4. Coey, J. M. D. Magnetism and Magnetic Materials (Cambridge University Press, New York, 2010).
5. Kronmüller, H. & Parkin, S. Handbook of Magnetism and Advanced Magnetic Materials (Wiley, London, 2007).
6. Nakamura, Y. Advanced Technologies of Perpendicular Magnetic Recording (CMC Publishing, Tokyo, 2007).
7. Plumer, M., Ek, J. & Weller, D. The Physics of Ultra-High Density Magnetic Recording (Springer, Berlin, 2001).
8. Celozzi, S., Araneo, R. & Lovat, G. Electromagnetic Shielding (Wiley-Interscience, IEEE Press, New Jersey, 2008).
9. Craik, D. J. Magnetic Oxides (Wiley-Interscience Publication, London, 1975).
10. Cornell, R. M. & Schwertmann, U. The Iron Oxide: Structure, Properties, Reactions, Occurrence and Uses (Wiley-VCH, Weinheim, 1999).
11. Dzyaloshinsky, I. A thermodynamic theory of "weak" ferromagnetism of antiferromagnetics. J. Phys. Chem. Solids 4, 241-255 (1958).
12. Moriya, T. New mechanism of anisotropic superexchange interaction. Phys. Rev. Lett. 4, 228-230 (1960).
13. Zboil, R., Machala, L., Mashlan, M. & Sharma, V. Iron (III) oxide nanoparticles in the thermally induced oxidative decomposition of Prussian blue, Fe4[Fe(CN)6]3. Cryst. Growth Des. 4, 1317-1325 (2004). (Pubitemid 39534401)
14. Lee, C.-W., Jung, S.-S. & Lee, J.-S. Phase transformation of β-Fe2O3 hollow nanoparticles. Mater. Lett. 62, 561-563 (2008). (Pubitemid 350266110)
15. Tronc, E., Chanéac, C. & Jolivet, J. P. Structural and magnetic characterization of ε-Fe2O3. J. Solid State Chem. 139, 93-104 (1998).
16. Jin, J., Ohkoshi, S. & Hashimoto, K. Giant coercive field of nanometer-sized iron oxide. Adv. Mater. 16, 48-51 (2004).
17. Kelm, K. & Mader, W. Synthesis and structural analysis of ε-Fe2O3. Z. Anorg. Allg. Chem. 631, 2383-2389 (2005).
18. Kusano, Y. et al. Epotaxial growth of ε-Fe2O3 on mullite found through studies on a traditional Japanese stoneware. Chem. Mater. 20, 151-156 (2008). (Pubitemid 351256723)
19. Tseng, Y. et al. Nonzero orbital moment in high coercivity ε-Fe2O3 and low-temperature collapse of the magnetocrystalline anisotropy. Phys. Rev. B 79, 094404 (2009).
20. Tronc, E., Chaneac, C., Jolivet, J. P. & Greneche, J. M. Spin collinearity and thermal disorder in epsilon-Fe2O3. J. Appl. Phys. 98, 053901 (2005).
21. Gich, M. et al. Magnetoelectric coupling in ε-Fe2O3 nanoparticles. Nanotechnology 17, 687-691 (2006).
22. Nesbitt, E. A. & Wernick, J. H. Rare Earth Permanent Magnets (Academic Press, London, 1973).
23. Long, G. J. & Grandjean, F. Proceedings of the NATO Advanced Study Insitute on Supermagnets, Hard Magnetic Materials (Kluwer Academic Publishers, Boston, 1990).
24. Ohkoshi, S., Namai, A. & Sakurai, S. The origin of ferromagnetism in ε-Fe2O3 and ε-GaxFe2-xO3 nanomagnets. J. Phys. Chem. C 113, 11235-11238 (2009).
25. Tucek, J., Ohkoshi, S. & Zboril, R. Room-temperature ground magnetic state of ε-Fe2O3: in-field Mössbauer spectroscopy evidence for collinear ferrimagnet. Appl. Phys. Lett. 99, 253108 (2011).
26. Namai, A. et al. Synthesis of an electromagnetic wave absorber for high-speed wireless communication. J. Am. Chem. Soc. 131, 1170-1173 (2009).
27. Zhang, H. & Banfield, J. F. Thermodynamic analysis of phase stability of nanocrystalline titania. J. Mater. Chem. 8, 2073-2076 (1998). (Pubitemid 128701661)
28. McHale, J. M., Auroux, A., Perrotta, A. J. & Navrotsky, A. Surface energies and thermodynamic phase stability in nanocrystalline aluminas. Science 277, 788-791 (1997).
29. Wen, H. L., Chen, Y. Y., Yen, F. S. & Huang, C. H. Size characterization of θ-and α-Al2O3 crystallites during phase transformation. Nanostruct. Mater. 11, 89-101 (1999).
30. Ohkoshi, S. et al. Synthesis of a metal oxide with a room-temperature photoreversible phase transition. Nat. Chem. 2, 539-545 (2010).
31. Fiorani, D. & Sberveglieri, G. Fundamental Properties of Nanostructured Materials (World Scientific Publishing, Singapore, 1993).
32. Nakajima, M., Namai, A., Ohkoshi, S. & Suemoto, T. Ultrafast time domain demonstration of terahertz bulk magnetization precession at zero magnetic field ferromagnetic resonance induced by terahertz magnetic field. Opt. Express 18, 18260-18268 (2010).
33. Vinoy, K. J. & Jha, R. M. Radar Absorbing Materials (Kluwer, Boston, 1996).
34. Rodwell, M. J. W. High Speed Integrated Circuit Technology, towards 100 GHz Logic (World Scientific, Singapore, 2001).
35. Huang, K.-C. & Wang, Z. Millimeter Wave Communication Systems (Wiley-IEEE Press, New Jersey, 2011).
36. Capmany, J. & Novak, M. Microwave photonics combines two worlds. Nat. Photon. 1, 319-329 (2007).
37. Möller, K., Kobler, J. & Bein, T. Colloidal suspensions of nanometer-sized mesoporous silica. Adv. Funct. Mater. 17, 605-612 (2007). (Pubitemid 46423473)
38. Fowler, C. E., Khushalani, D., Lebeau, B. & Mann, S. Nanoscale materials with mesostructured interiors. Adv. Mater. 13, 649-652 (2001). (Pubitemid 32486008)
39. Izumi, F. & Momma, K. Three-dimensional visualization in powder diffraction. Solid State Phenom. 130, 15-20 (2007).
40. Goto, K., Ito, M. & Sakurai, T. Studies on magnetic domains of small particles of barium ferrite by colloid-SEM method. Jpn. J. Appl. Phys. 19, 1339-1346 (1980). (Pubitemid 11442191)
41. Kresse, G. & Hafner, J. Ab initio molecular dynamics for open-shell transition metals. Phys. Rev. B 48, 13115-13118 (1993).
42. Kresse, G. & Furthmüller, J. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Phys. Rev. B 54, 11169-11186 (1996).