TY - JOUR
T1 - Preparation and magnetic properties of amorphous EuTiO3 thin films
AU - Zong, Yanhua
AU - Kugimiya, Kazuma
AU - Fujita, Koji
AU - Akamatsu, Hirofumi
AU - Hirao, Kazuyuki
AU - Tanaka, Katsuhisa
N1 - Funding Information:
The authors thank M. Tosaki and Y. Isozumi of Radioisotope Research Center, Kyoto University, for the CEM effect measurements. This research was partially supported by the Ministry of Education, Science, Sports and Culture , Grand-in-Aids for Scientific Research (B) (Grand No. 19360298 ) and Challenging Exploratory Research (Grant No. 21656163 ). One of the authors (H. A) thanks the Grant-in-Aid (Grand No. 20-6726 ) from the Japan Society for the Promotion of Science .
PY - 2010/10/1
Y1 - 2010/10/1
N2 - Amorphous EuTiO3 thin films have been prepared by a pulsed laser deposition method, and their structural and magnetic properties have been investigated. High-resolution transmission electron microscope image and selected-area electron diffraction pattern as well as X-ray diffraction pattern confirm the amorphous nature of the thin films. 151Eu conversion-electron Mössbauer effect measurements show that almost all of the europium ions are present as Eu2+ in the thin films. The amorphous EuTiO3 thin film exhibits a positive Weiss temperature of 8.7 K, indicating predominant ferromagnetic interactions among Eu2+ ions. The signature of a ferromagnetic-like transition is observed at around 5.5 K.
AB - Amorphous EuTiO3 thin films have been prepared by a pulsed laser deposition method, and their structural and magnetic properties have been investigated. High-resolution transmission electron microscope image and selected-area electron diffraction pattern as well as X-ray diffraction pattern confirm the amorphous nature of the thin films. 151Eu conversion-electron Mössbauer effect measurements show that almost all of the europium ions are present as Eu2+ in the thin films. The amorphous EuTiO3 thin film exhibits a positive Weiss temperature of 8.7 K, indicating predominant ferromagnetic interactions among Eu2+ ions. The signature of a ferromagnetic-like transition is observed at around 5.5 K.
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U2 - 10.1016/j.jnoncrysol.2010.05.014
DO - 10.1016/j.jnoncrysol.2010.05.014
M3 - Article
AN - SCOPUS:78349304843
VL - 356
SP - 2389
EP - 2392
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
IS - 44-49
ER -