Comparative study of core–shell iron/iron oxide gold covered magnetic nanoparticles obtained in different conditions
Source abstract
Abstract
In this study, we report the synthesis and characterization of the core-shell Fe covered with Au shells nanoparticles with mean diameters between 5 and 8 nm. The inverse micelles method was utilized to produce the samples. X-ray diffraction studies show that both core-shell systems have the expected crystalline structure. High resolution transmission electron microscopy and atomic emission spectroscopy techniques give additional information concerning the structure and composition of nanoparticles. An intermediate shell of amorphous oxidized iron was found between the magnetic Fe core and the external gold shell. The magnetic behavior of different core-shell samples shows no hysteresis loop indicating the superparamagnetic behavior of Fe@Au systems. The superparamagnetic behavior is also evidenced from FC and ZFC dependences of the magnetization versus temperature. By using the temperature dependence of the thermoremanent magnetization combined with magnetization versus applied magnetic field, the effective anisotropy constant was determined. The Fe/Au interface contribution to the effective anisotropy constant was calculated and discussed in relation with the combined shape and stress anisotropies.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic properties of thin films · Metallic Glasses and Amorphous Alloys · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Aldea N, Gluhoi A, Marginean P, Cosma C, Yaning X (2000) Extended X-ray absorption fine structure and X-ray diffraction studies on supported nickel catalysts. Spectrochim Acta B 55:997–1008. doi: 10.1016/S0584-8547(00)00211-110.1016/S0584-8547(00)00211-1 ↗
2. Ban Z, Barnakov YA, Li F, Golub VO, O’Connor CJ (2005) The synthesis of core–shell iron@gold nanoparticles and their characterization. J Mater Chem 15:4660–4662. doi: 10.1039/B504304B10.1039/b504304b ↗
3. Blanco-Mantecon M, O’Grady K (2006) Interaction and size effects in magnetic nanoparticles. J Magn Magn Mater 296:124–133. doi: 10.1016/j.jmmm.2004.11.58010.1016/j.jmmm.2004.11.580 ↗
4. Carpenter E, Seip CT, O’Connor CJ (1999a) Magnetism of nanophase metal and metal alloy particles formed in ordered phases. J Appl Phys 85:5184–5186. doi: 10.1063/1.36911810.1063/1.369118 ↗
5. Carpenter EE, Sangregorio C, O’Connor CJ (1999b) Effects of shell thickness on blocking temperature of nanocomposites of metal particles with gold shells. IEEE Trans Magn 35:3496–3498. doi: 10.1109/20.80056810.1109/20.800568 ↗
6. Caruso F (2001) Nanoengineering of particle surfaces. Adv Mater 13:11. doi: 10.1002/1521-4095(200101)13:1<11:AID-ADMA11>3.0.CO;2-N10.1002/1521-4095(200101)13:1<11::AID-ADMA11>3.0.CO;2-N ↗
7. Chantrell RW, Popplewell J, Charles SW (1978) Measurements of particle-size distribution parameters in ferrofluids. IEEE Trans Magn 14:975–977. doi: 10.1109/TMAG.1978.105991810.1109/TMAG.1978.1059918 ↗
8. Chatterjee J, Haik Y, Chen CJ (2002) Polyethylene magnetic nanoparticle: a new magnetic material for biomedical applications. J Magn Magn Mater 246:382–391. doi: 10.1016/S0304-8853(02)00110-510.1016/S0304-8853(02)00110-5 ↗
9. Cho SJ, Shahin AM, Long GJ, Davies JE, Liu K, Grandjean F, Kauzlarich SM (2006) Magnetic and Mössbauer spectral study of core/shell structured Fe/Au nanoparticles. Chem Mater 18:960–967. doi: 10.1021/cm052207310.1021/cm0522073 ↗
10. Cumpson PJ, Seah MP (1997) Elastic scattering corrections in AES and XPS II. Estimating attenuation lengths and conditions required for their valid use in overlayer/substrate experiments. Surf Interface Anal 25:430–446. doi: 10.1002/(SICI)1096-9918(199706)25:6<430:AID-SIA254>3.0.CO;2-710.1002/(SICI)1096-9918(199706)25:6<430::AID-SIA254>3.0.CO;2-7 ↗
11. Gangopadhyay S, Hadjipanayis GC, Dale B, Sorensen CM, Klabunde KJ, Papaefthymiou V, Kostikas A (1992) Magnetic properties of ultrafine iron particles. Phys Rev B 45:9778–9787. doi: 10.1103/PhysRevB.45.977810.1103/PhysRevB.45.9778 ↗
12. Gleiter H (2000) Nanostructured materials: basic concepts and microstructure. Acta Mater 48:1–29. doi: 10.1016/S1359-6454(99)00285-210.1016/S1359-6454(99)00285-2 ↗
13. Goya GF, Berquo TS, Fonseca FC, Morales MP (2003) Static and dynamic magnetic properties of spherical magnetite nanoparticles. J Appl Phys 945:3520–3528. doi: 10.1063/1.159995910.1063/1.1599959 ↗
14. Jacobs IS, Bean CP (1963) Fine particles, thin films and exchange anisotropy. In: Rado GT, Suhl H (eds) Magnetism, vol 3. Academic Press, New York, pp 271–349
15. Klabunde KJ, Zhang D, Glavee GN, Sorensen CM, Hadjipanayis GC (1994) Encapsulated nanoparticles of iron metal. Chem Mater 6(6):784–787. doi: 10.1021/cm00042a01410.1021/cm00042a014 ↗
16. Leslie-Pelecky DL, Rieke RD (1996) Magnetic properties of nanostructured materials. Chem Mater 8:1770–1783. doi: 10.1021/cm960077f10.1021/cm960077f ↗
17. Li M, Schnablegger H, Mann S (1999) Coupled synthesis and self-assembly of nanoparticles to give structures with controlled organization. Nature 402:393–395. doi: 10.1038/4650910.1038/46509 ↗
18. Lin J, Zhou W, Kumbhar A, Wiemann J, Fang J, Carpenter EE, O’Connor CJ (2001) Gold-coated iron (Fe@Au) nanoparticles: synthesis, characterization, and magnetic field-induced self-assembly. J Solid State Chem 159:26–31. doi: 10.1006/jssc.2001.911710.1006/jssc.2001.9117 ↗
19. Lu QH, Yao KL, Xi D, Liu ZL, Luo XP, Ning Q (2006) Synthesis and characterization of composite nanoparticles comprised of gold shell and magnetic core/cores. J Magn Magn Mater 301:44–49. doi: 10.1016/j.jmmm.2005.06.00710.1016/j.jmmm.2005.06.007 ↗
20. Lyon JL, Fleming DA, Stone MB, Schiffer P, Williams ME (2004) Synthesis of Fe oxide core/Au shell nanoparticles by iterative hydroxylamine seeding. Nano Lett 4:719–723. doi: 10.1021/nl035253f10.1021/nl035253f ↗
21. Mills P, Sullivan JL (1983) A study of the core level electrons in iron and its three oxides by means of X-ray photoelectron spectroscopy. J Phys D Appl Phys 16:723–732. doi: 10.1088/0022-3727/16/5/00510.1088/0022-3727/16/5/005 ↗
22. Mulder FM, Thiel RC, Buschow KHJ (1995) d155Gd Mossbauer investigation of the compound GdPd2Al3. J Alloys Compd 223:127–129. doi: 10.1016/0925-8388(94)01493-010.1016/0925-8388(94)01493-0 ↗
23. Néel L (1949) Influence des fluctuations thermiques sur l’aimantation de grains ferromagnétiques très fins. CR Acad Sci Paris 228:664–666
24. Pana O, Teodorescu CM, Chauvet O, Payen C, Macovei D, Turcu R, Soran ML, Aldea N, Barbu L (2007) Structure, morphology and magnetic properties of Fe–Au core–shell nanoparticles. Surf Sci 601(18):4352–4357. doi: 10.1016/j.susc.2007.06.02410.1016/j.susc.2007.06.024 ↗
25. Pana O, Turcu R, Soran ML, Leostean C, Gautron E, Payen C, Chauvet O (2010) Synthesis and characterization of the core–shell Au covered LSMO manganite magnetic nanoparticles. Synth Met 160:1692–1698. doi: 10.1016/j.synthmet.2010.06.00210.1016/j.synthmet.2010.06.002 ↗
26. Park SJ, Kim S, Lee S, Khim ZG, Char K, Hyeon T (2000) Synthesis and magnetic studies of uniform iron nanorods and nanospheres. J Am Chem Soc 122:8581–8582. doi: 10.1021/ja001628c10.1021/ja001628c ↗
27. Rasa M (2000) Magnetic properties and magneto-birefringence of magnetic fluids. Eur Phys J E 2:265–275. doi: 10.1007/PL0001367010.1007/PL00013670 ↗
28. Romanus E, Koettig T, Glockl G, Prass S, Schmidl F, Heinrich J, Gopinadhan M, Berkov DV, Helm CA, Weitschies W, Weber P, Seidel P (2007) Energy barrier distributions of maghemite nanoparticles. Nanotechnology 18:115709.1–115709.8. doi: 10.1088/0957-4484/18/11/11570910.1088/0957-4484/18/11/115709 ↗
29. Sappey R, Vincent E, Hadacek N, Chaput F, Boilot JP, Zins D (1997) Nonmonotonic field dependence of the zero-field cooled magnetization peak in some systems of magnetic nanoparticles. Phys Rev B 56:14551–14559. doi: 10.1103/PhysRevB.56.1455110.1103/PhysRevB.56.14551 ↗
30. Talapin DV, Shevchenko EV, Weller H (2005) Synthesis and characterization of magnetic nanoparticles. In: Gunter Schmid (ed) Nanoparticles: from theory to application. Wiley, Weinheim p 199. ISBN: 3-527-30507-610.1002/chin.200511250 ↗
31. Turcu R, Pana O, Nan A, Craciunescu I, Chauvet O, Payen C (2008) Polypyrrole coated magnetite nanoparticles from water based nanofluids. J Phys D Appl Phys 41:245002.1–245002.9. doi: 10.1088/0022-3727/41/24/24500210.1088/0022-3727/41/24/245002 ↗
32. Vargas JM, Socolovsky LM, Knobel M, Zanchet D (2005) Dipolar interaction and size effects in powder samples of colloidal iron oxide nanoparticles. Nanotechnology 16:S285–S290. doi: 10.1088/0957-4484/16/5/02810.1088/0957-4484/16/5/028 ↗
33. Wang C, Baer DR, Amonette JE, Engelhard MH, Antony J, Qiang Y (2009) Morphology and electronic structure of the oxide shell on the surface of iron nanoparticles. J Am Chem Soc 131:8824–8832. doi: 10.1021/ja900353f10.1021/ja900353f ↗
34. Zhou WL, Carpenter EE, Lin J, Kumbhar A, Sims J, O’Connor CJ (2001) Nanostructures of gold coated iron core-shell nanoparticles and the nanobands assembled under magnetic field. Eur Phys J D 16:289–292. doi: 10.1007/s10053017011210.1007/s100530170112 ↗