Open AccessCharge carrier concentration and structural transition temperatures in Heusler alloys Ni50Mn36Sb14-xZx (Z = Al, Ge; x = 0; 1; 2; 3; 4)
Author(s) -
S. M. Emelyanova,
T. V. D’yachkova,
А. P. Tyutyunnik,
V. V. Chistyakov,
A. N. Domozhirova,
F. M. Sauerzopf,
R L Wang,
Changping Yang,
В. В. Марченков
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1389/1/012090
Subject(s) - materials science , magnetization , austenite , condensed matter physics , hall effect , analytical chemistry (journal) , charge carrier , crystallography , transition temperature , charge (physics) , electrical resistivity and conductivity , metallurgy , microstructure , chemistry , superconductivity , physics , magnetic field , optoelectronics , chromatography , quantum mechanics
The temperature dependences of magnetization and electrical resistance of the Ni 50 Mn 36 Sb 14-x Z x (Z = Al, Ge; x = 0; 1; 2; 3; 4) alloys have been used to determine the structural transition temperatures (STT) such as: M s , M f , A s and A f (temperatures of the start and finish of martensitic and austenitic transformations, respectively). Effect of various parameters (e/a, V cell , 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.