TY - JOUR
T1 - Room-temperature ferromagnetism and hydrogen shallow donors in rare-earth Eu-doped ZnO nanorods
AU - Choi, Dong Min
AU - Lee, Yeon Ho
AU - Lee, Kyu Won
AU - Park, Won Koo
AU - Lee, Cheol Eui
N1 - Funding Information:
This work was supported by the Ministry of Education and the National Research Foundation of Korea (Project No. 2019S1A5A2A03050121). The Korea Basic Science Institute (KBSI) is acknowledged for the measurements.
Funding Information:
This work was supported by the Ministry of Education and the National Research Foundation of Korea (Project No. 2019S1A5A2A03050121 ). The Korea Basic Science Institute (KBSI) is acknowledged for the measurements.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Prominent room-temperature ferromagnetism in rare-earth Eu-doped ZnO nanorods has been investigated by means of magnetization and electron paramagnetic resonance (EPR) measurements. The magnetism of the unhydrogenated Eu-doped ZnO nanorods is explained by a spin-1/2 species, attributed to the Zn vacancies. In the hydrogenated Eu-doped ZnO nanorods, a spin-1 species, attributed to the Zn vacancies coupled to the hydrogen shallow donors, would give rise to a slightly enhanced magnetization. The hydrogen shallow donors, identified by the electron paramagnetic resonance (EPR) measurements, can be taken to be responsible for the changes in the spin states and magnetization of the Eu-doped ZnO nanorods.
AB - Prominent room-temperature ferromagnetism in rare-earth Eu-doped ZnO nanorods has been investigated by means of magnetization and electron paramagnetic resonance (EPR) measurements. The magnetism of the unhydrogenated Eu-doped ZnO nanorods is explained by a spin-1/2 species, attributed to the Zn vacancies. In the hydrogenated Eu-doped ZnO nanorods, a spin-1 species, attributed to the Zn vacancies coupled to the hydrogen shallow donors, would give rise to a slightly enhanced magnetization. The hydrogen shallow donors, identified by the electron paramagnetic resonance (EPR) measurements, can be taken to be responsible for the changes in the spin states and magnetization of the Eu-doped ZnO nanorods.
KW - Electron paramagnetic resonance
KW - Hydrogen shallow donors
KW - Rare-earth Eu-Doped ZnO
KW - Room-temperature ferromagnetism
UR - http://www.scopus.com/inward/record.url?scp=85080971602&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2020.412117
DO - 10.1016/j.physb.2020.412117
M3 - Article
AN - SCOPUS:85080971602
VL - 585
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
M1 - 412117
ER -