Low-Temperature Heat Capacity upon the Transition from Paramagnetic to Ferromagnetic Heusler Alloys Fe₂MeAl (Me = Ti, V, Cr, Mn, Fe, Co, Ni)

N. I. Kourov^a,*, V. V. Marchenkov^a^,^b, A. V. Korolev^a, and A. V. Lukoyanov^a^,^bTranslated by Yu. Ryzhkov

^aInstitute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219 Russia

^bUral Federal University, ul. Mira 19, Yekaterinburg, 620002 Russia

Correspondence to: *e-mail: kourov@imp.uran.ru

Received 15 December, 2015

Abstract—The heat capacity of band magnets Fe₂MeAl (Me = Ti, V, Cr, Mn, Fe, Co, Ni) ordered in crystal structure L2₁ has been measured in the range 2 K ≤ T ≤ 50 K. The dependences of the Debye temperature Θ_D, the Sommerfeld coefficient γ, and the temperature-independent contribution to heat capacity C₀ on the number of valence electrons z in the alloys have been determined.

DOI: 10.1134/S1063783416070210

Low-Temperature Heat Capacity upon the Transition from Paramagnetic to Ferromagnetic Heusler Alloys Fe2MeAl (Me = Ti, V, Cr, Mn, Fe, Co, Ni)

Low-Temperature Heat Capacity upon the Transition from Paramagnetic to Ferromagnetic Heusler Alloys Fe₂MeAl (Me = Ti, V, Cr, Mn, Fe, Co, Ni)