Research output: Contribution to journal › Conference article › peer-review
Electronic structure and magnetic couplings in iron-cobalt borides compounds. / Klinduhov, N.; Shelyapina, M. G.; Kasperovich, V. S.; Hlil, E. K.; Fruchart, D.
In: Journal of Magnetism and Magnetic Materials, Vol. 300, No. 1, 05.2006, p. e563-e566.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Electronic structure and magnetic couplings in iron-cobalt borides compounds
AU - Klinduhov, N.
AU - Shelyapina, M. G.
AU - Kasperovich, V. S.
AU - Hlil, E. K.
AU - Fruchart, D.
N1 - Funding Information: N.K. is granted by the MIRA2004 research scheme (region Rhône-Alpes–France) and by the contract ECO-NET (No. 08133RA) of the French Foreign Office.
PY - 2006/5
Y1 - 2006/5
N2 - In this paper, we report on calculations of the electronic structure and the magnetic coupling in Fe1-xCoxB and (Fe 1-xCox)2B iron-cobalt borides. In Fe1-xCoxB, the atomic magnetic moments decrease versus x the Co concentration and a ferromagnetic-nonmagnetic phase transition occurs at x∼0.9. For this series, our calculations show the presence of a small magnetic polarization on Co. For both series of borides, core hyperfine fields on atoms were also calculated. The Fe and Co spin magnetic moments μspin and core hyperfine fields Bhfcore exhibit similar concentration dependencies so that the ratio Bhfcore/μ spin reveals not sensitive to the Co concentration.
AB - In this paper, we report on calculations of the electronic structure and the magnetic coupling in Fe1-xCoxB and (Fe 1-xCox)2B iron-cobalt borides. In Fe1-xCoxB, the atomic magnetic moments decrease versus x the Co concentration and a ferromagnetic-nonmagnetic phase transition occurs at x∼0.9. For this series, our calculations show the presence of a small magnetic polarization on Co. For both series of borides, core hyperfine fields on atoms were also calculated. The Fe and Co spin magnetic moments μspin and core hyperfine fields Bhfcore exhibit similar concentration dependencies so that the ratio Bhfcore/μ spin reveals not sensitive to the Co concentration.
KW - FeCo Fe CoB (FeCo )B
KW - Hyperfine field
KW - Intermetallic
KW - KKR-CPA
KW - Magnetic moment
UR - http://www.scopus.com/inward/record.url?scp=33644641495&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2005.10.217
DO - 10.1016/j.jmmm.2005.10.217
M3 - Conference article
AN - SCOPUS:33644641495
VL - 300
SP - e563-e566
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 1
T2 - Third International Symposium on Magnetism 2005
Y2 - 26 June 2005 through 30 June 2005
ER -
ID: 99521575