| Autor: |
Zhang, Shao-ying, Zhao, Peng, Li, Run-wei, Zhang, Hong-wei, Shen, Bao-gen |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 4/15/2002, Vol. 91 Issue 8, p5250, 4p, 2 Charts, 4 Graphs |
| Abstrakt: |
Magnetic and transport properties of YMn[sub 6]Sn[sub 6-x]Ti[sub x] (0≤x≤1.0) compounds with HfFe[sub 6]Ge[sub 6]-type structure were investigated in the temperature range of 5–400 K. The compounds with low Ti content (x≤0.2) display antiferromagnetic behavior (317 K≤T[sub N]≤327 K). The Ti-rich compounds (0.8≤x≤1.0) behave as ferromagnetic in their whole magnetic ordered range (293 K≤T[sub N]≤334 K). The intermediate compounds (0.4≤x≤0.6) undergo an antiferro- to ferromagnetic transition with increasing temperature. The metamagnetic transition from antiferro- to ferromagnetism can be also induced by an applied field for the antiferromagnetic compounds. The metamagnetic transition field decreases with increasing Ti concentration. The large magnetoresistance of up to 35% is observed at 5 K under 50 kOe for the compounds (0.4≤x≤0.6) with metamagnetic behavior. The evolution of the magnetic properties is discussed. © 2002 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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