Critical fluctuations in MnP near the Curie temperature

Autor:	Carlos Castilla Becerra, Armando Paduan-Filho
Rok vydání:	2003
Předmět:	Paramagnetism Materials science Condensed matter physics Field (physics) Ferromagnetism Transition temperature Curie temperature Condensed Matter Physics Magnetic susceptibility Critical exponent Electronic Optical and Magnetic Materials Magnetic field
Zdroj:	Journal of Magnetism and Magnetic Materials. 261:161-165
ISSN:	0304-8853
Popis:	The temperature dependence of the AC susceptibility ( χ ) at constant applied magnetic field was investigated in the paramagnetic region close to the ferromagnetic transition in MnP. Above the curie temperature ( T c =291.9 K), a maximum in the χ ( T , H ) curves was observed at T m ( H ). The temperature of the maximum increases with increasing the applied field. The behavior of T m ( H ) is governed by the gap exponent of the scaling function ( Δ = γ + β ) . From the fitting of our data we found that Δ =1.51±0.03 which is in excellent agreement with the theoretical predictions that are in the range 1.49 Δ
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dc7b29f9b672facffa4f02673b2ebf25 https://doi.org/10.1016/s0304-8853(02)01468-3 Zobrazit plný text záznamu Full Text from ScienceDirect