Magnetic properties of low temperature phase MnBi of island structure
The magnetic and structural properties of island-structured LTP MnBi fabricated onto MgO single crystal substrates are discussed. The size and height of the “Volmer-Weber” type islands vary from place to place but are averagely a few microns and sub-microns, respectively. From the wetting angle (40...
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Online Access: | http://dx.doi.org/10.1063/1.4943148 |
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doaj-cac774b1198742ecb6ab6b0caab180bd2020-11-24T21:04:44ZengAIP Publishing LLCAIP Advances2158-32262016-05-0165056008056008-810.1063/1.4943148042691ADVMagnetic properties of low temperature phase MnBi of island structureTakahiro Suwa0Yoshitomo Tanaka1Gary Mankey2Rainer Schad3Takao Suzuki4Center for Materials for Information Technology (MINT), The University of Alabama, Tuscaloosa, AL 35487, USAMaterials Development Center, Technology HQ, TDK Corporation, Ichikawa, JapanCenter for Materials for Information Technology (MINT), The University of Alabama, Tuscaloosa, AL 35487, USACenter for Materials for Information Technology (MINT), The University of Alabama, Tuscaloosa, AL 35487, USACenter for Materials for Information Technology (MINT), The University of Alabama, Tuscaloosa, AL 35487, USAThe magnetic and structural properties of island-structured LTP MnBi fabricated onto MgO single crystal substrates are discussed. The size and height of the “Volmer-Weber” type islands vary from place to place but are averagely a few microns and sub-microns, respectively. From the wetting angle (40 ∼ 60°) of those islands, the surface energy ΥMnBi of LTP MnBi is found to be 0.5∼0.8 J/m2. Those MnBi islands possesses the magnetic anisotropy constant Ku and saturation magnetization Ms close to those for bulk over a temperature range of 5 to 400 K. There seems to be a correlation between Ku and lattice constant c measured at 300K. The Ku is found to be inversely proportional to Ms5 over the temperature range from 5 K to 400 K, as compared to the Ms8 dependence for those fabricated onto fused silica glass substrates.http://dx.doi.org/10.1063/1.4943148 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Takahiro Suwa Yoshitomo Tanaka Gary Mankey Rainer Schad Takao Suzuki |
spellingShingle |
Takahiro Suwa Yoshitomo Tanaka Gary Mankey Rainer Schad Takao Suzuki Magnetic properties of low temperature phase MnBi of island structure AIP Advances |
author_facet |
Takahiro Suwa Yoshitomo Tanaka Gary Mankey Rainer Schad Takao Suzuki |
author_sort |
Takahiro Suwa |
title |
Magnetic properties of low temperature phase MnBi of island structure |
title_short |
Magnetic properties of low temperature phase MnBi of island structure |
title_full |
Magnetic properties of low temperature phase MnBi of island structure |
title_fullStr |
Magnetic properties of low temperature phase MnBi of island structure |
title_full_unstemmed |
Magnetic properties of low temperature phase MnBi of island structure |
title_sort |
magnetic properties of low temperature phase mnbi of island structure |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2016-05-01 |
description |
The magnetic and structural properties of island-structured LTP MnBi fabricated onto MgO single crystal substrates are discussed. The size and height of the “Volmer-Weber” type islands vary from place to place but are averagely a few microns and sub-microns, respectively. From the wetting angle (40 ∼ 60°) of those islands, the surface energy ΥMnBi of LTP MnBi is found to be 0.5∼0.8 J/m2. Those MnBi islands possesses the magnetic anisotropy constant Ku and saturation magnetization Ms close to those for bulk over a temperature range of 5 to 400 K. There seems to be a correlation between Ku and lattice constant c measured at 300K. The Ku is found to be inversely proportional to Ms5 over the temperature range from 5 K to 400 K, as compared to the Ms8 dependence for those fabricated onto fused silica glass substrates. |
url |
http://dx.doi.org/10.1063/1.4943148 |
work_keys_str_mv |
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1716769954134491136 |