Intrinsic Magnetism in Tin Dioxide

Golovanov, V.; Özcan, Nergiz; Viitala, M.; Rantala, Tapio T.; Vaara, Juha

doi:10.1007/978-94-007-4119-5_29

Cited by 2 publications

(3 citation statements)

References 34 publications

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“…The g factor of the D signal is considerably lower than the g factor of free electron (g e = 2.003). It does not correspond neither to the theoretical values calculated for singly ionized bulk oxygen vacancy [11,12] nor to the experimental values attributed to surface oxygen vacancies (V o ) [10,13] and Sn 3+ ions in different matrices [14][15][16]. Thus, the nature of the D signal is today still unsettled.…”

Section: Introductionmentioning

confidence: 60%

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The nature of paramagnetic defects in tin (IV) oxide

2015

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Section: Introductionmentioning

confidence: 60%

“…The magnetic properties of two neighboring oxygen vacancies have been studied theoretically by Golovanov et al [11]. A distinctive feature of this defect is the formation of fourfold coordinated (Sn 4c ) tin atoms in bulk of SnO 2 lattice.…”

Section: Discussionmentioning

confidence: 99%

The nature of paramagnetic defects in tin (IV) oxide

2015

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“…There is also a belief that the observed FM in undoped SnO 2 mainly originates from bulk double oxygen vacancies. 23 In contrast, Wang et al 24 studied nanosheets of SnO 2 and they found that the saturation magnetization of all their annealed samples did not feature monodependence on oxygen vacancies, whereas an Sn vacancy related origin was accounted for variations in the magnetization of their studied samples.…”

Section: Introductionmentioning

confidence: 99%

Stabilizing intrinsic defects in SnO2

et al. 2013

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The magnetism and electronic structure of Li-doped SnO 2 are investigated using first-principles LDA/LDA+U calculations. We find that Li induces magnetism in SnO 2 when doped at the Sn site but becomes nonmagnetic when doped at the O and interstitial sites. The calculated formation energies show that Li prefers the Sn site as compared with the O site, in agreement with previous experimental works. The interaction of Li with native defects (Sn V Sn and O V O vacancies) is also studied, and we find that Li not only behaves as a spin polarizer, but also a vacancy stabilizer, i.e., Li significantly reduces the defect formation energies of the native defects and helps the stabilization of magnetic oxygen vacancies. The electronic densities of states reveals that these systems, where the Fermi level touches the conduction (valence) band, are nonmagnetic (magnetic).

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Intrinsic Magnetism in Tin Dioxide

Cited by 2 publications

References 34 publications

The nature of paramagnetic defects in tin (IV) oxide

The nature of paramagnetic defects in tin (IV) oxide

Stabilizing intrinsic defects in SnO2

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