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Title: Dimensionality Effects in FeGe 2 Nanowires: Enhanced Anisotropic Magnetization and Anomalous Electrical Transport

Here, we report the synthesis of single-crystal iron germanium nanowires via chemical vapor deposition without the assistance of any catalysts. The assembly of single-crystal FeGe 2 nanowires with tetragonal C16 crystal structure shows anisotropic magnetic behavior along the radial direction or the growth axial direction, with both antiferromagnetic and ferromagnetic orders. Single FeGe 2 nanowire devices were fabricated using e-beam lithography. Electronic transport measurement in these devices show two resistivity anomalies near 250 K and 200 K which are likely signatures of the two spin density wave states in FeGe 2.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2]
  1. University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)
  2. ORNL
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1376371

Mandrus, D., Gai, Zheng, Ward, Thomas Zac, Chi, Miaofang, Kravchenko, Ivan I., Cao, Guixin, Yi, Jieyu, Tang, Siwei, Ma, Cheng, and Zheng, Qiang. Dimensionality Effects in FeGe2 Nanowires: Enhanced Anisotropic Magnetization and Anomalous Electrical Transport. United States: N. p., Web. doi:10.1038/s41598-017-05771-6.
Mandrus, D., Gai, Zheng, Ward, Thomas Zac, Chi, Miaofang, Kravchenko, Ivan I., Cao, Guixin, Yi, Jieyu, Tang, Siwei, Ma, Cheng, & Zheng, Qiang. Dimensionality Effects in FeGe2 Nanowires: Enhanced Anisotropic Magnetization and Anomalous Electrical Transport. United States. doi:10.1038/s41598-017-05771-6.
Mandrus, D., Gai, Zheng, Ward, Thomas Zac, Chi, Miaofang, Kravchenko, Ivan I., Cao, Guixin, Yi, Jieyu, Tang, Siwei, Ma, Cheng, and Zheng, Qiang. 2017. "Dimensionality Effects in FeGe2 Nanowires: Enhanced Anisotropic Magnetization and Anomalous Electrical Transport". United States. doi:10.1038/s41598-017-05771-6. https://www.osti.gov/servlets/purl/1376371.
@article{osti_1376371,
title = {Dimensionality Effects in FeGe2 Nanowires: Enhanced Anisotropic Magnetization and Anomalous Electrical Transport},
author = {Mandrus, D. and Gai, Zheng and Ward, Thomas Zac and Chi, Miaofang and Kravchenko, Ivan I. and Cao, Guixin and Yi, Jieyu and Tang, Siwei and Ma, Cheng and Zheng, Qiang},
abstractNote = {Here, we report the synthesis of single-crystal iron germanium nanowires via chemical vapor deposition without the assistance of any catalysts. The assembly of single-crystal FeGe2 nanowires with tetragonal C16 crystal structure shows anisotropic magnetic behavior along the radial direction or the growth axial direction, with both antiferromagnetic and ferromagnetic orders. Single FeGe2 nanowire devices were fabricated using e-beam lithography. Electronic transport measurement in these devices show two resistivity anomalies near 250 K and 200 K which are likely signatures of the two spin density wave states in FeGe2.},
doi = {10.1038/s41598-017-05771-6},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {8}
}

Works referenced in this record:

One-Dimensional Nanostructures: Synthesis, Characterization, and Applications
journal, March 2003

Recent Advances in Chemical Synthesis, Self-Assembly, and Applications of FePt Nanoparticles
journal, February 2006