8th Liquid Matter Conference September 6-10, 2011 Wien, Austria ...

Fri 911:10-14:00P1.31Magnetic properties of 3d transition metal-Sb alloysSatoru Ohno, 1 Shuta Tahara, 1 and Tatsuya Okada 21 Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima,Akiha-ku 956-8603, Niigata, Japan2 Niigata College of Technology, Niigata, JapanThe magnetic susceptibility, χ, has been measured for liquid transition metal-Sb alloys (TM 1-cSb c, TM = Ni - Ti) as a function of temperature. Liquid Ni 1-c Sb c with c ≤ 0.11, liquid Co1-c Sb c with c ≤ 0.39, liquid Fe 1-c Sb c with c ≤ 0.9 and liquid Mn 1-c Sb c with 0.2 ≤ c≤ 0.91 exhibited the Curie-Weiss behavior with a reasonable value of effective Bohr magneticnumber. The magnetic susceptibilities of other liquid TM-Sb alloys were found to be almostindependent of temperature or weak positive dependence of temperature, which suggests that TMions in the regions of their TM-Sb alloys are in the non-magnetic state. The magnetic susceptibilityof liquid TM-Sb alloys in the non-magnetic state has been studied using the Anderson model. Thecomposition dependence of χ for liquid Ni-Sb and Fe-Sb increases gradually with increasing Niand Fe compositions, respectively. Particularly, the values of χ for liquid Co-Sb increases rapidlyon the Co-rich side. It suggests that there is a strong inter-atomic exchange interaction betweenthe parallel spins of Co ions. The values of χ for liquid Mn-Sb, Cr-Sb, V-Sb and Ti-Sb increaseconstantly with increasing Mn, Cr, V and Ti compositions. However, the composition dependenceof χ for liquid Mn-Sb and Cr-Sb shows a maximum at the compositions of 70 at% Mn and 50 at%Cr, respectively. It indicates that the magnetic interaction of Mn and Cr ions varies largely near thecompositions.31