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26 April 2024 |
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Article overview
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Magnetic phase transitions in SmCoAsO | | I.Felner
; Anand Pal
; I. Nowik
; K. Yamaura
; E. Takayama-Muromachi
; V.P.S. Awana
; | | Date: |
21 Jan 2010 | | Abstract: | Magnetization, x-ray diffraction and specific-heat measurements reveal that
SmCoAsO undergoes three magnetic phase transitions. A ferromagnetic transition
attributed to the Co ions, emerges at TC=57 K with a small saturation moment of
0.15muB/Co. Reorientation of the Co moment to an antiferromagnetic state is
obtained at TN2=45 K. The relative high paramagnetic effective moment Peff=1.57
MuB/Co indicates an itinerant ferromagnetic state of the Co sublattice. The
third magnetic transition at TN1=5 K is observed clearly in the specific-heat
study only. Both magnetic and 57Fe Mossbauer studies show that substitution of
small quantities of Fe for Co was unsuccessful. | | Source: | arXiv, 1001.3719 | | Services: | Forum | Review | PDF | Favorites | |
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