journal article·2022-07Open access

Crossover From Individual to Collective Magnetism in Dense Nanoparticle Systems: Local Anisotropy Versus Dipolar Interactions

Elena H. Sánchez, Marianna Vasilakaki, Su Seong Lee, Peter S. Normile, Mikael S. Andersson, Roland Mathieu, Alberto López‐Ortega, Benoit P. Pichon, Davide Peddis, Chris Binns, Per Nordblad, Kalliopi Trohidou, Josep Nogués, José A. De Toro

Small· Volume 18· Issue 28

Abstract

Abstract Dense systems of magnetic nanoparticles may exhibit dipolar collective behavior. However, two fundamental questions remain unsolved: i) whether the transition temperature may be affected by the particle anisotropy or it is essentially determined by the intensity of the interparticle dipolar interactions, and ii) what is the minimum ratio of dipole–dipole interaction (Edd) to nanoparticle anisotropy (KefV, anisotropy⋅volume) energies necessary to crossover from individual to collective behavior. A series of particle assemblies with similarly intense dipolar interactions but widely varying anisotropy is studied. The Kef is tuned through different degrees of cobalt‐doping in maghemite nanoparticles, resulting in a variation of nearly an order of magnitude. All the bare particle compacts display collective behavior, except the one made with the highest anisotropy particles, which presents “marginal” features. Thus, a threshold of KefV/Edd ≈ 130 to suppress collective behavior is derived, in good agreement with Monte Carlo simulations. This translates into a crossover value of ≈1.7 for the easily accessible parameter TMAX(interacting)/TMAX(non‐interacting) (ratio of the peak temperatures of the zero‐field‐cooled magnetization curves of interacting and dilute particle systems), which is successfully tested against the literature to predict the individual‐like/collective behavior of any given interacting particle assembly comprising relatively uniform particles.
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Research context

OpenAlex topics: Magnetic properties of thin films · Theoretical and Computational Physics · Characterization and Applications of Magnetic Nanoparticles

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Instituto Regional de Investigación Científica Aplicada (IRICA) and Departamento de Física Aplicada Universidad de Castilla‐La Mancha Ciudad Real 13071 Spain

Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Agia Paraskevi 153 10 Greece

NanoBio Lab, Institute of Materials Research and Engineering 31 Biopolis Way, #09‐01, The Nanos Singapore 138669 Singapore

Department of Chemistry Ångström Laboratory Uppsala University Uppsala 75121 Sweden

Department of Chemistry and Chemical Engineering Chalmers University of Technology Göteborg SE‐412 96 Sweden

Department of Materials Science and Engineering Uppsala University Box 35 Uppsala 751 03 Sweden

Departamento de Ciencias Universidad Pública de Navarra Pamplona 31006 Spain

Institute for Advanced Materials and Mathematics (INAMAT^{2}) Universidad Pública de Navarra Pamplona 31006 Spain

Université de Strasbourg CNRS Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504 Strasbourg F‐67000 France

Institut Universitaire de France Paris Cedex 05 75231 France

Dipartimento di Chimica e Chimica Industriale Università degli Studi di, Genova Via Dodecaneso 31 Genova 1–16146 Italy

Istituto di Structura della Materia‐CNR Monterotondo Scalo (RM) 00015 Italy

ICREA Pg. Lluís Companys 23 Barcelona 08010 Spain

Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB, Bellaterra Barcelona 08193 Spain

Funding

Ministerio de Ciencia, Innovación y Universidades · Vetenskapsrådet · Universidad Pública de Navarra · Generalitat de Catalunya · Universidad de Castilla-La Mancha · Ministerio de Educación, Cultura y Deporte

References (85)

Show source-provided references
1. 10.1038/nmat442210.1038/nmat4422 ↗
2. 10.1007/s00761-007-1263-310.1007/s00761-007-1263-3 ↗
3. 10.1186/1477-3155-2-310.1186/1477-3155-2-3 ↗
4. 10.1021/acsnano.7b0899510.1021/acsnano.7b08995 ↗
5. 10.1088/0953-8984/14/19/31410.1088/0953-8984/14/19/314 ↗
6. 10.1209/0295-5075/108/1700410.1209/0295-5075/108/17004 ↗
7. 10.1039/C8CP03934H10.1039/C8CP03934H ↗
8. 10.1021/acs.chemmater.9b0326810.1021/acs.chemmater.9b03268 ↗
9. 10.1016/j.jmmm.2019.16628610.1016/j.jmmm.2019.166286 ↗
10. 10.1088/0022-3727/43/16/16500210.1088/0022-3727/43/16/165002 ↗
11. 10.1103/PhysRevB.93.05440710.1103/PhysRevB.93.054407 ↗
12. 10.1021/acsomega.7b0097510.1021/acsomega.7b00975 ↗
13. 10.7150/thno.586010.7150/thno.5860 ↗
14. 10.1021/acscentsci.8b0039910.1021/acscentsci.8b00399 ↗
15. 10.1063/1.481702410.1063/1.4817024 ↗
16. 10.1002/adma.20130270410.1002/adma.201302704 ↗
17. 10.1126/science.aaw871910.1126/science.aaw8719 ↗
18. 10.1209/0295-5075/28/9/01010.1209/0295-5075/28/9/010 ↗
19. 10.1016/0375-9601(81)90441-210.1016/0375-9601(81)90441-2 ↗
20. 10.1039/c2nr32117c10.1039/c2nr32117c ↗
21. 10.1103/PhysRevLett.77.39010.1103/PhysRevLett.77.390 ↗
22. 10.1021/jp402444x10.1021/jp402444x ↗
23. 10.1063/1.480418710.1063/1.4804187 ↗
24. 10.1103/PhysRevB.83.22442310.1103/PhysRevB.83.224423 ↗
25. 10.1103/PhysRevB.77.10442810.1103/PhysRevB.77.104428 ↗
26. 10.1088/2053-1591/3/4/04501510.1088/2053-1591/3/4/045015 ↗
27. 10.1103/PhysRevB.57.49710.1103/PhysRevB.57.497 ↗
28. 10.1088/1361-648X/ab035310.1088/1361-648X/ab0353 ↗
29. 10.1021/jp050161v10.1021/jp050161v ↗
30. 10.1103/PhysRevB.64.22442110.1103/PhysRevB.64.224421 ↗
31. 10.1103/PhysRevB.69.22440710.1103/PhysRevB.69.224407 ↗
32. 10.1103/PhysRevB.72.18442810.1103/PhysRevB.72.184428 ↗
33. 10.1103/PhysRevB.80.02440610.1103/PhysRevB.80.024406 ↗
34. 10.1016/j.jmmm.2017.11.09910.1016/j.jmmm.2017.11.099 ↗
35. 10.1063/1.497453210.1063/1.4974532 ↗
36. 10.1063/1.494138810.1063/1.4941388 ↗
37. 10.1103/PhysRevLett.84.206410.1103/PhysRevLett.84.2064 ↗
38. 10.1021/jp300806j10.1021/jp300806j ↗
39. 10.3390/nano1006101910.3390/nano10061019 ↗
40. 10.1021/acs.chemmater.7b0252210.1021/acs.chemmater.7b02522 ↗
41. 10.1021/cm051297910.1021/cm0512979 ↗
42. 10.1088/0957-4484/26/47/47570310.1088/0957-4484/26/47/475703 ↗
43. 10.1063/1.496451710.1063/1.4964517 ↗
44. 10.1063/1.493548410.1063/1.4935484 ↗
45. 10.1038/s41598-018-29501-810.1038/s41598-018-29501-8 ↗
46. 10.1021/acs.jpcc.7b0174810.1021/acs.jpcc.7b01748 ↗
47. 10.1103/PhysRevB.34.757310.1103/PhysRevB.34.7573 ↗
48. 10.1063/1.12672710.1063/1.126727 ↗
49. 10.3390/nano802006310.3390/nano8020063 ↗
50. 10.1088/0034-4885/78/5/05250110.1088/0034-4885/78/5/052501 ↗
51. 10.1016/j.jmmm.2010.11.05710.1016/j.jmmm.2010.11.057 ↗
52. 10.1166/jnn.2008.1534810.1166/jnn.2008.15348 ↗
53. 10.1002/0471484237.ch310.1002/0471484237.ch3 ↗
54. 10.1016/j.jmmm.2007.02.00610.1016/j.jmmm.2007.02.006 ↗
55. 10.1103/PhysRevB.82.05440610.1103/PhysRevB.82.054406 ↗
56. 10.1103/PhysRevB.84.21443510.1103/PhysRevB.84.214435 ↗
57. 10.1016/j.physrep.2014.09.00710.1016/j.physrep.2014.09.007 ↗
58. 10.1016/j.physrep.2005.08.00410.1016/j.physrep.2005.08.004 ↗
59. 10.1021/cm203280y10.1021/cm203280y ↗
60. 10.3390/nano611022110.3390/nano6110221 ↗
61. 10.1021/jp411481p10.1021/jp411481p ↗
62. 10.1088/1361-6528/abc50a10.1088/1361-6528/abc50a ↗
63. 10.1103/PhysRevLett.80.18110.1103/PhysRevLett.80.181 ↗
64. 10.1063/1.352793210.1063/1.3527932 ↗
65. 10.1103/PhysRevLett.77.39410.1103/PhysRevLett.77.394 ↗
66. 10.1088/0957-4484/16/4/02910.1088/0957-4484/16/4/029 ↗
67. 10.1016/S0304-8853(97)01165-710.1016/S0304-8853(97)01165-7 ↗
68. 10.1103/PhysRevB.23.138410.1103/PhysRevB.23.1384 ↗
69. 10.1016/0304-8853(87)90329-510.1016/0304-8853(87)90329-5 ↗
70. 10.1063/1.489149710.1063/1.4891497 ↗
71. 10.1063/1.490723210.1063/1.4907232 ↗
72. 10.1063/1.199729710.1063/1.1997297 ↗
73. 10.1103/PhysRevB.67.21442210.1103/PhysRevB.67.214422 ↗
74. 10.1103/PhysRevLett.75.413810.1103/PhysRevLett.75.4138 ↗
75. 10.1038/s41598-021-87345-110.1038/s41598-021-87345-1 ↗
76. 10.1103/PhysRevLett.92.16720310.1103/PhysRevLett.92.167203 ↗
77. 10.1103/PhysRevB.86.21442510.1103/PhysRevB.86.214425 ↗
78. 10.1016/j.apmt.2020.10058710.1016/j.apmt.2020.100587 ↗
79. 10.1103/PhysRevB.48.725910.1103/PhysRevB.48.7259 ↗
80. 10.1063/1.480836810.1063/1.4808368 ↗
81. 10.1063/1.489808910.1063/1.4898089 ↗
82. 10.1007/BF0132520310.1007/BF01325203 ↗
83. 10.1103/PhysRevB.54.923710.1103/PhysRevB.54.9237 ↗
84. 10.1103/PhysRevB.67.06442210.1103/PhysRevB.67.064422 ↗
85. 10.1103/PhysRevB.63.09240110.1103/PhysRevB.63.092401 ↗