Ferromagnetic half-metallicity in half-Heusler AuMnSn:Te Alloy
نویسندگان
چکیده
منابع مشابه
Heusler alloy showing room temperature half - metallicity at the surface
In this article we investigate the surface spin polarization in a 100 nm Co 2 Cr 0.6 Fe 0.4 Al (CCFA) film grown ex situ epitaxially on MgO(100) with a 10 nm Fe buffer layer by means of spin resolved photoemission. We show that a careful in situ preparation of the sample surface leads to values for the room temperature spin polarization up to 45% at the Fermi level. To our knowledge, this is th...
متن کاملHalf-metallicity and Slater-Pauling behavior in the ferromagnetic Heusler alloys
Half-metallic ferromagnets represent a new class of materials which attracted a lot of attention due to their possible applications in spintronics (also known as magnetoelectronics) [1]. Adding the spin degree of freedom to the conventional electronic devices has several advantages like non-volatility, increased data processing speed, decreased electric power consumption and increased integrati...
متن کاملDirect observation of half-metallicity in the Heusler compound Co2MnSi
Ferromagnetic thin films of Heusler compounds are highly relevant for spintronic applications owing to their predicted half-metallicity, that is, 100% spin polarization at the Fermi energy. However, experimental evidence for this property is scarce. Here we investigate epitaxial thin films of the compound Co2MnSi in situ by ultraviolet-photoemission spectroscopy, taking advantage of a novel mul...
متن کاملPreserving the half-metallicity at the Heusler alloy Co2MnSi(001) surface: a density functional theory study.
We have studied the stability, the electronic, and the magnetic properties of Co2MnSi(001) thin films for 15 different terminations using density functional theory calculations. The phase diagram obtained by ab initio atomistic thermodynamics shows that in practice the MnSi, pure Mn, or pure Si terminated surfaces can be stabilized under suitable conditions. Analyzing the surface band structure...
متن کاملHalf-Heusler semiconductors as piezoelectrics.
We use a first-principles rational-design approach to demonstrate the potential of semiconducting half-Heusler compounds as a previously unrecognized class of piezoelectric materials. We perform a high-throughput scan of a large number of compounds, testing for insulating character and calculating structural, dielectric, and piezoelectric properties. Our results provide guidance for the experim...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials Research Express
سال: 2020
ISSN: 2053-1591
DOI: 10.1088/2053-1591/ab88ff