Magnetic ordering and spin-glass behaviour of carbon nanoclusters

A. V. Rode; N. R. Madsen; A. G. Christy; B. Luther-Davies; D. Arčon; A. Zorko; Z. Jaglicic; D. W.M. Lau; D. G. McCulloch

doi:10.1109/ICONN.2006.340542

Magnetic ordering and spin-glass behaviour of carbon nanoclusters

A. V. Rode, N. R. Madsen, A. G. Christy, B. Luther-Davies, D. Arčon, A. Zorko, Z. Jaglicic, D. W.M. Lau, D. G. McCulloch

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

Carbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behaviour at low temperature. The results show that the degree of remanent order is strongly dependent on the magnetic history, i.e. whether the samples were cooled under zero-field or field conditions. Such behaviour is typical for a spin glass structure where the system can exist in many different roughly equivalent spin configurations. The spin-freezing temperature is unusually high (50 - 300 K) compared with ≤ 15 K for typical spin glasses. The maximum in the zero-field magnetic susceptibility experiments and their field dependence indicate that there is competition between ferromagnetic and antiferromagnetic exchange pathways, accounting for the spin glass behavior and/or a low-dimensionality of the system.

Original language	English
Title of host publication	Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN
Pages	31-34
Number of pages	4
DOIs	https://doi.org/10.1109/ICONN.2006.340542
Publication status	Published - 2006
Event	2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006 - Brisbane, Australia Duration: 3 Jul 2006 → 6 Jul 2006

Publication series

Name	Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN

Conference

Conference	2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006
Country/Territory	Australia
City	Brisbane
Period	3/07/06 → 6/07/06

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10.1109/ICONN.2006.340542

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Rode, A. V., Madsen, N. R., Christy, A. G., Luther-Davies, B., Arčon, D., Zorko, A., Jaglicic, Z., Lau, D. W. M., & McCulloch, D. G. (2006). Magnetic ordering and spin-glass behaviour of carbon nanoclusters. In Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN (pp. 31-34). Article 4143322 (Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN). https://doi.org/10.1109/ICONN.2006.340542

@inproceedings{b539dcad44df4a2086c9803e316cf739,

title = "Magnetic ordering and spin-glass behaviour of carbon nanoclusters",

abstract = "Carbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behaviour at low temperature. The results show that the degree of remanent order is strongly dependent on the magnetic history, i.e. whether the samples were cooled under zero-field or field conditions. Such behaviour is typical for a spin glass structure where the system can exist in many different roughly equivalent spin configurations. The spin-freezing temperature is unusually high (50 - 300 K) compared with ≤ 15 K for typical spin glasses. The maximum in the zero-field magnetic susceptibility experiments and their field dependence indicate that there is competition between ferromagnetic and antiferromagnetic exchange pathways, accounting for the spin glass behavior and/or a low-dimensionality of the system.",

keywords = "Ferromagnetic carbon, Magnetic carbon nanoclusters, Spin glass",

author = "Rode, {A. V.} and Madsen, {N. R.} and Christy, {A. G.} and B. Luther-Davies and D. Ar{\v c}on and A. Zorko and Z. Jaglicic and Lau, {D. W.M.} and McCulloch, {D. G.}",

year = "2006",

doi = "10.1109/ICONN.2006.340542",

language = "English",

isbn = "1424404533",

series = "Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN",

pages = "31--34",

booktitle = "Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN",

note = "2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006 ; Conference date: 03-07-2006 Through 06-07-2006",

}

Rode, AV, Madsen, NR, Christy, AG, Luther-Davies, B, Arčon, D, Zorko, A, Jaglicic, Z, Lau, DWM & McCulloch, DG 2006, Magnetic ordering and spin-glass behaviour of carbon nanoclusters. in Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN., 4143322, Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN, pp. 31-34, 2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006, Brisbane, Australia, 3/07/06. https://doi.org/10.1109/ICONN.2006.340542

Magnetic ordering and spin-glass behaviour of carbon nanoclusters. / Rode, A. V.; Madsen, N. R.; Christy, A. G. et al.
Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN. 2006. p. 31-34 4143322 (Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Magnetic ordering and spin-glass behaviour of carbon nanoclusters

AU - Rode, A. V.

AU - Madsen, N. R.

AU - Christy, A. G.

AU - Luther-Davies, B.

AU - Arčon, D.

AU - Zorko, A.

AU - Jaglicic, Z.

AU - Lau, D. W.M.

AU - McCulloch, D. G.

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Y1 - 2006

N2 - Carbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behaviour at low temperature. The results show that the degree of remanent order is strongly dependent on the magnetic history, i.e. whether the samples were cooled under zero-field or field conditions. Such behaviour is typical for a spin glass structure where the system can exist in many different roughly equivalent spin configurations. The spin-freezing temperature is unusually high (50 - 300 K) compared with ≤ 15 K for typical spin glasses. The maximum in the zero-field magnetic susceptibility experiments and their field dependence indicate that there is competition between ferromagnetic and antiferromagnetic exchange pathways, accounting for the spin glass behavior and/or a low-dimensionality of the system.

AB - Carbon nanoclusters produced by high-repetition-rate laser ablation of graphite and glassy carbon in Ar exhibits para- and ferromagnetic behaviour at low temperature. The results show that the degree of remanent order is strongly dependent on the magnetic history, i.e. whether the samples were cooled under zero-field or field conditions. Such behaviour is typical for a spin glass structure where the system can exist in many different roughly equivalent spin configurations. The spin-freezing temperature is unusually high (50 - 300 K) compared with ≤ 15 K for typical spin glasses. The maximum in the zero-field magnetic susceptibility experiments and their field dependence indicate that there is competition between ferromagnetic and antiferromagnetic exchange pathways, accounting for the spin glass behavior and/or a low-dimensionality of the system.

KW - Ferromagnetic carbon

KW - Magnetic carbon nanoclusters

KW - Spin glass

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T3 - Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN

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BT - Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN

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Y2 - 3 July 2006 through 6 July 2006

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Rode AV, Madsen NR, Christy AG, Luther-Davies B, Arčon D, Zorko A et al. Magnetic ordering and spin-glass behaviour of carbon nanoclusters. In Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN. 2006. p. 31-34. 4143322. (Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN). doi: 10.1109/ICONN.2006.340542

Magnetic ordering and spin-glass behaviour of carbon nanoclusters

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