Understanding the Noncollinear Antiferromagnetic IrMn<sub>3</sub> Surfaces and Their Exchange-Biased Heterostructures from First-Principles
نویسندگان
چکیده
We provide a complete and systematic first-principles study of the thermodynamic stability, structural parameters, magnetic properties T1 noncollinear antiferromagnetic L12-IrMn3 surface...
منابع مشابه
Exchange bias effect of ferro-/antiferromagnetic heterostructures
The exchange bias (EB) effect was discovered 60 years ago by Meiklejohn and Bean. Meanwhile the EB effect has become an integral part of modern magnetism with implications for basic research and for numerous device applications. The EB effect was the first of its kind which relates to an interface effect between two different classes of materials, here between a ferromagnet and an antiferromagn...
متن کاملFirst-principles Raman spectra of MoS2, WS2 and their heterostructures.
Raman spectra of MoS2, WS2, and their heterostructures are studied by density functional theory. We quantitatively reproduce existing experimental data and present evidence that the apparent discrepancy between intensity ratios observed experimentally can be explained by the high sensitivity of the Raman-active modes to laser polarization. Furthermore, MoS2/WS2 heterostructures up to four layer...
متن کاملSpin-transfer torques in antiferromagnetic metals from first principles.
In spite of the absence of a macroscopic magnetic moment, an antiferromagnet is spin-polarized on an atomic scale. The electric current passing through a conducting antiferromagnet is polarized as well, leading to spin-transfer torques when the order parameter is textured, such as in antiferromagnetic noncollinear spin valves and domain walls. We report a first principles study on the electroni...
متن کاملUnderstanding the structure and reaction of single molecules on metal surfaces from first principles
The study of surface adsorption and reaction is not only interesting from a scientific point of view, but also important in many application fields such as energy, environment, catalysis, corrosion, electronic device, and sensor. Theoretical calculations are essential in these studies. In this thesis, first principles studies for the structure and reaction of some important single molecules on ...
متن کاملOrigin of spontaneous magnetization reversal in exchange biased heterostructures
The dependence of thermally induced spontaneous magnetization reversal on time-dependent cooling protocols implies that this reversal is energetically favored, contrary to the prediction of existing positive exchange bias models. Slow cooling through and long waiting near the Néel temperature of the antiferromagnet enhances the magnitude of the magnetization reversal. Further, cycling the tempe...
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: ACS applied electronic materials
سال: 2021
ISSN: ['2637-6113']
DOI: https://doi.org/10.1021/acsaelm.0c00922