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Title: Developing techniques for crystal growth synthesis and characterization of rare earth-silicon-germanium magnetoresponsive alloys

Journal Article · · Journal of Alloys and Compounds
 [1];  [1]
  1. Ames Laboratory (AMES), Ames, IA (United States)

In this study, a crystal growth technique was developed for the family of intermetallic, magnetoresponsive RE5(Si1-xGex)4 alloys in order to access the intrinsic and anisotropic properties. Initial bulk properties measured on polycrystalline samples alluded to the properties being obscured or averaged and high-quality, well-characterized, single crystals would clarify this. Successful crystal growth led to development of oriented sample preparation techniques specific for the crystal structures (monoclinic and orthorhombic) and mechanical properties (hard and brittle) of these alloys, and customized for the various measurement techniques undertaken. Here we describe our journey, sometimes circuitous, from crystal growth to sample preparation and cite the scientific discoveries that came about as a result.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
2329486
Alternate ID(s):
OSTI ID: 2369799
Report Number(s):
IS-J-11,294
Journal Information:
Journal of Alloys and Compounds, Vol. 988; ISSN 0925-8388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Anomalous electrical transport behavior in the vicinity of the first-order magnetostructural transition in the giant magnetocaloric Gd4ScGe4 journal May 2022
Temperature and Field Induced Strain Measurements in Single Crystal Gd5Si2Ge2 journal March 2016
Thermal expansion of single-crystal Gd/sub 5/(Si/sub 1.95/Ge/sub 2.05/) showing unusual first-order transformation journal September 2002
Orientation and formation of atypical Widmanstaetten plates in the Gd5(SixGe1−x)4 system journal March 2006
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Anisotropy of the Magnetoresistance in G d 5 S i 2 G e 2 journal November 2004
The giant magnetocaloric effect of optimally prepared Gd5Si2Ge2 journal April 2003