TY - JOUR
T1 - Structural and Mössbauer studies of Fe0.9-xCoxZr0.1 alloys
AU - Mohaidat, Q. I.
AU - Al-Omari, I. A.
AU - Mahmood, S. H.
N1 - Funding Information:
The authors would like to acknowledge the financial support of Jordan University of Science and Technology and Yarmouk University. Thanks are due to Mr. Fawaz Ababneh, Physics Department, Yarmouk University, for assistance with the XRD study.
PY - 2002/8
Y1 - 2002/8
N2 - In this paper, we present the results of the structural and magnetic properties of Fe0.9-xCoxZr0.1 Alloys. X-ray diffraction indicates that this system crystallizes in the cubic BCC structure as a dominant phase and some minor phases. The cubic phase is associated with α-(Fe-Co) while the minor phases are associated with Fe-Zr intermetallic phase. Room temperature Mössbauer spectra of the alloy system indicate that iron is present in two magnetic sites and one minor non-magnetic site. One of the two magnetic sites is attributed to the α-(Fe-Co) phase in which Co is dissolved, and the other to Fe-Zr intermetallic phase. The minor non-magnetic site is attributed to the γ-Fe phase. The magnetic hyperfine field corresponding to the Fe-Co magnetic phase was found to increase with increasing cobalt concentration, which is due to the increase in the spin density at the Fe nucleus. A small decrease in the hyperfine field is observed for the Fe-Zr phase which can be due to the change in the chemical environment around the Fe atoms. The average isomer shift for this system is negative indicating an increase in the s-electron density at the Fe nucleus.
AB - In this paper, we present the results of the structural and magnetic properties of Fe0.9-xCoxZr0.1 Alloys. X-ray diffraction indicates that this system crystallizes in the cubic BCC structure as a dominant phase and some minor phases. The cubic phase is associated with α-(Fe-Co) while the minor phases are associated with Fe-Zr intermetallic phase. Room temperature Mössbauer spectra of the alloy system indicate that iron is present in two magnetic sites and one minor non-magnetic site. One of the two magnetic sites is attributed to the α-(Fe-Co) phase in which Co is dissolved, and the other to Fe-Zr intermetallic phase. The minor non-magnetic site is attributed to the γ-Fe phase. The magnetic hyperfine field corresponding to the Fe-Co magnetic phase was found to increase with increasing cobalt concentration, which is due to the increase in the spin density at the Fe nucleus. A small decrease in the hyperfine field is observed for the Fe-Zr phase which can be due to the change in the chemical environment around the Fe atoms. The average isomer shift for this system is negative indicating an increase in the s-electron density at the Fe nucleus.
KW - Hyperfine field
KW - Isomer shift
KW - Magnetic properties
KW - Mössbauer spectroscopy
KW - Structural properties
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U2 - 10.1016/S0921-4526(02)00841-4
DO - 10.1016/S0921-4526(02)00841-4
M3 - Conference article
AN - SCOPUS:0036686960
SN - 0921-4526
VL - 321
SP - 149
EP - 153
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-4
T2 - Proceedings of the Second Regional Conference on Magnetic and (MSS-01)
Y2 - 9 September 2001 through 13 September 2001
ER -