First observation of ferromagnetism and ferromagnetic domains in a liquid metal.
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| Title: | First observation of ferromagnetism and ferromagnetic domains in a liquid metal. |
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| Authors: | Albrecht, T., Bührer, C., Fähnle, M., Maier, K., Platzek, D., Reske, J. |
| Source: | Applied Physics A: Materials Science & Processing. 1997, Vol. 65 Issue 2, p215. 6p. |
| Subjects: | Ferromagnetism, Liquid metals |
| Abstract: | Miniaturized electromagnetic levitation has been used to undercool a liquid Co[sub 80] Pd[sub 20] alloy below the Curie temperature T[sub C] (l)=1257 K of the liquid state. The magnetization of the undercooled liquid sample has been measured as a function of temperature using a modified Faraday balance. Below T[sub C] (l), the magnetization of the liquid metal shows a plateau in the weak external field of μ[sub 0] H[sub z] =5.6 mT. The effect is comparable to the behaviour of the corresponding solid phase, indicating the onset of spontaneous magnetization with ferromagnetic domains. T[sub C] (l) is about 20 K lower than the Curie temperature of the solid phase T[sub C] (s). [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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