Intriguing complex magnetism of Co in RECoAsO (RELa, Nd, and Sm)

Anand Pal; M. Tropeano; S. D. Kaushik; Mushahid Hussain; Hari Kishan; V. P.S. Awana

doi:10.1063/1.3551743

Intriguing complex magnetism of Co in RECoAsO (RELa, Nd, and Sm)

Anand Pal, M. Tropeano, S. D. Kaushik, Mushahid Hussain, Hari Kishan, V. P.S. Awana

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The bulk intrinsic magnetism of Co changes dramatically when nonmagnetic La Sm and Nd in RECoAsO (RE=La, Nd, Sm). Although the itinerant ferromagnetism occurs below 80-100 K with small saturation moment, typical anti-ferromagnetic (AFM) transitions (T_N1, T_N2) are observed at 57 K and 45 K for Sm and at 69 K and 14 K for Nd. This is evidenced in isothermal magnetization plots as well. It is clear that SmNd magnetic moments interact with the ordered Co spins in adjacent layer and thus transforms the ferromagnetic (FM) ordering to AFM.

Original language	English
Article number	07E121
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3551743
Publication status	Published - 01-04-2011

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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title = "Intriguing complex magnetism of Co in RECoAsO (RELa, Nd, and Sm)",

abstract = "The bulk intrinsic magnetism of Co changes dramatically when nonmagnetic La Sm and Nd in RECoAsO (RE=La, Nd, Sm). Although the itinerant ferromagnetism occurs below 80-100 K with small saturation moment, typical anti-ferromagnetic (AFM) transitions (TN1, TN2) are observed at 57 K and 45 K for Sm and at 69 K and 14 K for Nd. This is evidenced in isothermal magnetization plots as well. It is clear that SmNd magnetic moments interact with the ordered Co spins in adjacent layer and thus transforms the ferromagnetic (FM) ordering to AFM.",

author = "Anand Pal and M. Tropeano and Kaushik, {S. D.} and Mushahid Hussain and Hari Kishan and Awana, {V. P.S.}",

note = "Funding Information: This work is partly supported by Indo-Italy CSIR-CNR project.",

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T1 - Intriguing complex magnetism of Co in RECoAsO (RELa, Nd, and Sm)

AU - Pal, Anand

AU - Tropeano, M.

AU - Kaushik, S. D.

AU - Hussain, Mushahid

AU - Kishan, Hari

AU - Awana, V. P.S.

N1 - Funding Information: This work is partly supported by Indo-Italy CSIR-CNR project.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - The bulk intrinsic magnetism of Co changes dramatically when nonmagnetic La Sm and Nd in RECoAsO (RE=La, Nd, Sm). Although the itinerant ferromagnetism occurs below 80-100 K with small saturation moment, typical anti-ferromagnetic (AFM) transitions (TN1, TN2) are observed at 57 K and 45 K for Sm and at 69 K and 14 K for Nd. This is evidenced in isothermal magnetization plots as well. It is clear that SmNd magnetic moments interact with the ordered Co spins in adjacent layer and thus transforms the ferromagnetic (FM) ordering to AFM.

AB - The bulk intrinsic magnetism of Co changes dramatically when nonmagnetic La Sm and Nd in RECoAsO (RE=La, Nd, Sm). Although the itinerant ferromagnetism occurs below 80-100 K with small saturation moment, typical anti-ferromagnetic (AFM) transitions (TN1, TN2) are observed at 57 K and 45 K for Sm and at 69 K and 14 K for Nd. This is evidenced in isothermal magnetization plots as well. It is clear that SmNd magnetic moments interact with the ordered Co spins in adjacent layer and thus transforms the ferromagnetic (FM) ordering to AFM.

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Intriguing complex magnetism of Co in RECoAsO (RELa, Nd, and Sm)

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