Variation of magnetostriction with temperature in Tb5Si2.2Ge1.8 single crystal Lograsso, Thomas Schlagel, Deborah Ring, A. Ziegler, H. Jiles, David Lograsso, Thomas Schlagel, Deborah Snyder, J. Jiles, David
dc.contributor.department Ames Laboratory 2018-02-13T15:09:54.000 2020-06-29T23:17:33Z 2020-06-29T23:17:33Z Sun Jan 01 00:00:00 UTC 2006 2013-09-24 2006-04-26
dc.description.abstract <p>The Tb<sub>5</sub>(Si<sub><em>x</em></sub>Ge<sub>4−<em>x</em></sub>) alloy system is similar to the better known Gd<sub>5</sub>(Si<sub><em>x</em></sub>Ge<sub>4−<em>x</em></sub>), except it has a more complex magnetic and structural phase diagram. Gd<sub>5</sub>(Si<sub><em>x</em></sub>Ge<sub>1−<em>x</em></sub>)<sub>4</sub> has received much attention recently due to its giant magnetocaloric effect, colossal magnetostriction and giant magnetoresistance in the vicinity of a first order combined magnetic-structural phase transition. The magnetostriction changes that accompany the phase transitions of single crystal Tb<sub>5</sub>(Si<sub>2.2</sub>Ge<sub>1.8</sub>) have been investigated at temperatures between 20 and150 K by measurements of magnetostriction along the <em>a</em> axis. Over this temperature range the shape and slope of the magnetostriction curves change, indicative of changes in the magnetic state, crystal structure, and magnetic anisotropy. The results appear to indicate a phase transition that occurs near 106 K (onset-completion range of 116–100 K). The steepness of the strain transition, its unusual hysteresis, and its temperature dependence appear to indicate a first order phase transition which is activated by applied magnetic field in addition to temperature (see Fig. 1). Magnetostriction measurements at temperature below the transition region appear to indicate a magnetostriction of small overall magnitude (about 30×10<sup>−6</sup>) but high anisotropy, with anistropy showing considerable temperature dependence.</p>
dc.description.comments <p>Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.</p> <p>The following article appeared in <em>Journal of Applied Physics</em> 99 (2006): 08R104 and may be found at <a href="" target="_blank"></a>.</p>
dc.identifier archive/
dc.identifier.articleid 1016
dc.identifier.contextkey 4618629
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_conf/12
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 19:03:29 UTC 2022
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Metallurgy
dc.subject.keywords Materials Science and Engineering
dc.subject.keywords terbium alloys
dc.subject.keywords silicon alloys
dc.subject.keywords germanium alloys
dc.subject.keywords magnetostriction
dc.subject.keywords magnetic transitions
dc.subject.keywords magnetocaloric effects
dc.subject.keywords giant magnetoresistance
dc.subject.keywords crystal structure
dc.subject.keywords magnetic anisotropy
dc.subject.keywords magnetic hysteresis
dc.title Variation of magnetostriction with temperature in Tb5Si2.2Ge1.8 single crystal
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isAuthorOfPublication 220ce8a4-546b-4118-8d44-911799a0ffa1
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relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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