skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Morin transition temperature in (0001)-oriented α-Fe{sub 2}O{sub 3} thin film and effect of Ir doping

Abstract

The structural properties and Morin transition in c-plane-oriented α-Fe{sub 2}O{sub 3} and Ir-doped α-Fe{sub 2}O{sub 3} thin films have been investigated. The enhancement of the Morin transition temperature (T{sub M}) in α-Fe{sub 2}O{sub 3} film by Ir doping has been demonstrated. The T{sub M} in the c-plane-oriented α-Fe{sub 2}O{sub 3} thin film was determined from the temperature-dependent in-plane magnetization and change of coercivity (H{sub c}); this T{sub M} value was found close to that of bulk α-Fe{sub 2}O{sub 3}. The spin directions of non-doped and Ir-doped α-Fe{sub 2}O{sub 3} at room temperature were also estimated from conversion electron Mössbauer spectroscopy measurements. We confirmed that Ir doping dramatically enhances the T{sub M} of α-Fe{sub 2}O{sub 3} thin film.

Authors:
; ; ; ;  [1];  [2];  [3]
  1. Department of Electronic Engineering, Graduate School of Electronic Engineering, Tohoku University, Sendai 980-8579 (Japan)
  2. Advanced Technology Development Center, TDK Corporation, Ichikawa 272-0026 (Japan)
  3. Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555 (Japan)
Publication Date:
OSTI Identifier:
22410035
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; COERCIVE FORCE; DOPED MATERIALS; ELECTRONS; FERRITES; IRIDIUM COMPOUNDS; IRON OXIDES; MAGNETIZATION; MOESSBAUER EFFECT; SPIN; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; TRANSITION TEMPERATURE

Citation Formats

Shimomura, Naoki, E-mail: shimomura@ecei.tohoku.ac.jp, Pati, Satya Prakash, Sato, Yuji, Nozaki, Tomohiro, Sahashi, Masashi, Shibata, Tatsuo, and Mibu, Ko. Morin transition temperature in (0001)-oriented α-Fe{sub 2}O{sub 3} thin film and effect of Ir doping. United States: N. p., 2015. Web. doi:10.1063/1.4916304.
Shimomura, Naoki, E-mail: shimomura@ecei.tohoku.ac.jp, Pati, Satya Prakash, Sato, Yuji, Nozaki, Tomohiro, Sahashi, Masashi, Shibata, Tatsuo, & Mibu, Ko. Morin transition temperature in (0001)-oriented α-Fe{sub 2}O{sub 3} thin film and effect of Ir doping. United States. doi:10.1063/1.4916304.
Shimomura, Naoki, E-mail: shimomura@ecei.tohoku.ac.jp, Pati, Satya Prakash, Sato, Yuji, Nozaki, Tomohiro, Sahashi, Masashi, Shibata, Tatsuo, and Mibu, Ko. Thu . "Morin transition temperature in (0001)-oriented α-Fe{sub 2}O{sub 3} thin film and effect of Ir doping". United States. doi:10.1063/1.4916304.
@article{osti_22410035,
title = {Morin transition temperature in (0001)-oriented α-Fe{sub 2}O{sub 3} thin film and effect of Ir doping},
author = {Shimomura, Naoki, E-mail: shimomura@ecei.tohoku.ac.jp and Pati, Satya Prakash and Sato, Yuji and Nozaki, Tomohiro and Sahashi, Masashi and Shibata, Tatsuo and Mibu, Ko},
abstractNote = {The structural properties and Morin transition in c-plane-oriented α-Fe{sub 2}O{sub 3} and Ir-doped α-Fe{sub 2}O{sub 3} thin films have been investigated. The enhancement of the Morin transition temperature (T{sub M}) in α-Fe{sub 2}O{sub 3} film by Ir doping has been demonstrated. The T{sub M} in the c-plane-oriented α-Fe{sub 2}O{sub 3} thin film was determined from the temperature-dependent in-plane magnetization and change of coercivity (H{sub c}); this T{sub M} value was found close to that of bulk α-Fe{sub 2}O{sub 3}. The spin directions of non-doped and Ir-doped α-Fe{sub 2}O{sub 3} at room temperature were also estimated from conversion electron Mössbauer spectroscopy measurements. We confirmed that Ir doping dramatically enhances the T{sub M} of α-Fe{sub 2}O{sub 3} thin film.},
doi = {10.1063/1.4916304},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}