We present a systematic study of the magnetization, Hall effect and specific heat on single crystals of Mn4Si7. Curie-Weiss law is observed above 43 K. At low-temperature moments order in an anisotropic helical state and are aligned above 1 T. We observe an anomalous Hall effect in both rho(H) vs. B and in R-H vs. T curves and a field dependence of the low T specific heat due to spin fluctuations. The magnetic moments (p(eff) and p(sat)) are the lowest reported for similar itinerant magnetic systems, this suggests that Mn4Si7 is a good candidate to observe critical quantum fluctuations expected for a marginal Fermi liquid.

Magnetic and electronic properties of Mn4Si7 / Sulpice, A; Gottlieb, U; Affronte, Marco; Laborde, O.. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - ELETTRONICO. - 272-276:(2004), pp. 519-520. [10.1016/j.jmmm.2003.12.364]

Magnetic and electronic properties of Mn4Si7

AFFRONTE, Marco;
2004

Abstract

We present a systematic study of the magnetization, Hall effect and specific heat on single crystals of Mn4Si7. Curie-Weiss law is observed above 43 K. At low-temperature moments order in an anisotropic helical state and are aligned above 1 T. We observe an anomalous Hall effect in both rho(H) vs. B and in R-H vs. T curves and a field dependence of the low T specific heat due to spin fluctuations. The magnetic moments (p(eff) and p(sat)) are the lowest reported for similar itinerant magnetic systems, this suggests that Mn4Si7 is a good candidate to observe critical quantum fluctuations expected for a marginal Fermi liquid.
2004
272-276
519
520
Magnetic and electronic properties of Mn4Si7 / Sulpice, A; Gottlieb, U; Affronte, Marco; Laborde, O.. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - ELETTRONICO. - 272-276:(2004), pp. 519-520. [10.1016/j.jmmm.2003.12.364]
Sulpice, A; Gottlieb, U; Affronte, Marco; Laborde, O.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/4366
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 18
social impact