Cite this article:
Zhang Cheng-Liang, Wang Dun-Hui, Cao Qing-Qi, Xuan Hai-Cheng, Ma Sheng-Can, Du You-Wei. Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloyJ. Chin. Phys. B, 2010, 19(3): 037501.
| Zhang Cheng-Liang, Wang Dun-Hui, Cao Qing-Qi, Xuan Hai-Cheng, Ma Sheng-Can, Du You-Wei. Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloyJ. Chin. Phys. B, 2010, 19(3): 037501. |
Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloy
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Abstract
The magneto-transport properties are investigated in metamagnetic CoMnSi0.88Ge0.12 alloy. By applying a magnetic field or increasing temperature, a metamagnetic phase transition from antiferromagnetic to ferromagnetic is observed in this alloy. Around the metamagnetic phase transition, CoMnSi0.88Ge0.12 alloy exhibits a large and negative magnetoresistance effect (~ 32%) under a magnetic field of 20 kOe (1 Oe = 79.5775 A/m), which is ascribed to the spin-dependent scattering of conduction electrons. -
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