Charge carrier concentration and structural transition temperatures in Heusler alloys Ni50Mn36Sb14-xZx (Z = Al, Ge; x = 0; 1; 2; 3; 4)

The temperature dependences of magnetization and electrical resistance of the Ni50Mn36Sb14-xZx (Z = Al, Ge; x = 0; 1; 2; 3; 4) alloys have been used to determine the structural transition temperatures (STT) such as: Ms, Mf, As and Af (temperatures of the start and finish of martensitic and austeniti...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1389 (1)
Main Authors: Emelyanova, S M, Dyachkova, T V, Tyutyunnik, A P, Chistyakov, V V, Domozhirova, A N, Sauerzopf, F, Wang, R L, Yang, C, Marchenkov, V V
Format: Article
Language:English
Subjects:
Carrier density
Current carriers
Hall effect
Heusler alloys
Magnetism
Physics
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Summary:The temperature dependences of magnetization and electrical resistance of the Ni50Mn36Sb14-xZx (Z = Al, Ge; x = 0; 1; 2; 3; 4) alloys have been used to determine the structural transition temperatures (STT) such as: Ms, Mf, As and Af (temperatures of the start and finish of martensitic and austenitic transformations, respectively). Effect of various parameters (e/a, Vcell, n) on the STT was studied. Using Hall Effect the concentration of charge carriers n* was obtained and it was found that n* is not strongly correlated with a behaviour of STT, there is only a general trend with exceptions.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1389/1/012090