Room temperature ferromagnetism in defective TiO2 nanoparticles: Role of surface and grain boundary oxygen vacancies

B Choudhury, A Choudhury - Journal of Applied Physics, 2013 - pubs.aip.org
Unexpected room temperature ferromagnetism (RTFM) in nonmagnetic metal oxide
nanoparticles have been reported previously. This unconventional behaviour is primarily …

Density-functional characterization of antiferromagnetism in oxygen-deficient anatase and rutile

K Yang, Y Dai, B Huang, YP Feng - Physical Review B—Condensed Matter …, 2010 - APS
We present theoretical evidence for local magnetic moments on Ti 3+ ions in oxygen-
deficient anatase and rutile TiO 2 observed in a recent experiment [S. Zhou, Phys. Rev. B 79 …

Room temperature ferromagnetism: nonmagnetic semiconductor oxides and nonmagnetic dopants

SM Yakout - Journal of Electronic Materials, 2021 - Springer
Advances in room temperature ferromagnetic semiconductors increase the opportunity to
commercialize full spintronic devices. The manipulation of electron spin in semiconductor …

Influence of surface disorder, oxygen defects and bandgap in TiO2 nanostructures on the photovoltaic properties of dye sensitized solar cells

TK Das, P Ilaiyaraja, PSV Mocherla… - Solar Energy Materials …, 2016 - Elsevier
We present a detailed study on the microstructural, structural and optical properties of
hydrogen treated (HT) diverse TiO 2 nanostructures (TNS) in comparison to the as-prepared …

[图书][B] Handbook of nanophysics: principles and methods

KD Sattler - 2010 - taylorfrancis.com
Covering the key theories, tools, and techniques of this dynamic field, Handbook of
Nanophysics: Principles and Methods elucidates the general theoretical principles and …

TiO2 thin films for spintronics application: a Raman study

F Rossella, P Galinetto, MC Mozzati… - Journal of Raman …, 2010 - Wiley Online Library
We present the results of a systematic study performed by micro‐Raman spectroscopy on
pure anatase, pure rutile and mixed anatase–rutile TiO2 thin films, deposited by radio …

Evidence of defect-induced ferromagnetism and its “switch” action in pristine bulk TiO2

RK Singhal, S Kumar, P Kumari, YT Xing… - Applied Physics …, 2011 - pubs.aip.org
In this work, we demonstrate that room temperature ferromagnetism can be induced in
pristine anatase TiO 2 paramagnetic bulk powder through extended hydrogenation. Defect …

Preparation and photocatalytic performance of TiO2/PbTiO3 fiber composite enhanced by external force induced piezoelectric field

Y Bai, J Zhao, Y Li, Z Lv, K Lu - Journal of the American …, 2019 - Wiley Online Library
In this paper, anatase TiO2 nanoparticles (14 nm) were coated on the surface of
piezoelectric PbTiO3 single crystal fibers by a secondary hydrothermal method, thus ap‐n …

Defect-trapped electrons and ferromagnetic exchange in ZnO

A Chakrabarty, CH Patterson - Physical Review B—Condensed Matter and …, 2011 - APS
A model for ferromagnetism observed at ambient temperature in films of oxides such as ZnO
is proposed and evaluated. The ferromagnetic moment in the model arises from electrons …

WO3 thin films grown on Si substrates: potential high Tc ferromagnetic semiconductors

NS Pham, NH Hong - Applied Physics A, 2024 - Springer
Well-defined ferromagnetism (FM) with a very high Tc of about 800 K was found in laser-
ablated WO3 films grown on Si wafer substrates. It seems that the observed magnetism is …