Tensile strain induced switching of magnetic states in NbSe2 and NbS2 single layers. Xu, Y., Liu, X., & Guo, W. Nanoscale, 6(21):12929–12933, October, 2014. ![Tensile strain induced switching of magnetic states in NbSe2 and NbS2 single layers [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Two dimensional crystals, befitting nanoscale electronics and spintronics, can benefit strain-tunable applications due to their ultrathin and flexible nature. We show by first-principles calculations that tensile strain can enhance the exchange splitting of spins in NbSe2 and NbS2 single layers. Particularly, a switch from antiferro- to ferro-magnetism is realized by strain engineering. Under strains lower than 4%, an antiferromagnetic state with opposite spins aligned on the next-nearest-neighbor rows of Nb atoms is favored in energy due to a superexchange interaction; with higher strains the ground state turns to be ferromagnetic with a double exchange origin. In contrast, the VSe2 and VS2 single layers, though with the same trigonal prismatic coordination, remain ferromagnetic even under compressive strains.
@article{xu_tensile_2014,
title = {Tensile strain induced switching of magnetic states in {NbSe2} and {NbS2} single layers},
volume = {6},
issn = {2040-3372},
url = {http://pubs.rsc.org/en/content/articlelanding/2014/nr/c4nr01486c},
doi = {10.1039/C4NR01486C},
abstract = {Two dimensional crystals, befitting nanoscale electronics and spintronics, can benefit strain-tunable applications due to their ultrathin and flexible nature. We show by first-principles calculations that tensile strain can enhance the exchange splitting of spins in NbSe2 and NbS2 single layers. Particularly, a switch from antiferro- to ferro-magnetism is realized by strain engineering. Under strains lower than 4\%, an antiferromagnetic state with opposite spins aligned on the next-nearest-neighbor rows of Nb atoms is favored in energy due to a superexchange interaction; with higher strains the ground state turns to be ferromagnetic with a double exchange origin. In contrast, the VSe2 and VS2 single layers, though with the same trigonal prismatic coordination, remain ferromagnetic even under compressive strains.},
language = {en},
number = {21},
urldate = {2016-12-13},
journal = {Nanoscale},
author = {Xu, Ying and Liu, Xiaofei and Guo, Wanlin},
month = oct,
year = {2014},
pages = {12929--12933},
}
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