Giant magnetostriction effect in LaFe12B6 metamagnet
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10468739" target="_blank" >RIV/00216208:11320/23:10468739 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=6jKGXh0RtN" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=6jKGXh0RtN</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0144348" target="_blank" >10.1063/5.0144348</a>
Alternative languages
Result language
angličtina
Original language name
Giant magnetostriction effect in LaFe12B6 metamagnet
Original language description
We investigate the complex magnetic behavior of LaFe12B6 by means of magnetostriction, and thermal expansion measurements in applied fields of up to 14 T, elucidating the interplay between crystal lattice and spins. As main results, we have discovered a remarkably large negative thermal expansion (NTE) and giant magnetostriction in this itinerant-electron system. Of particular interest are the low-temperature magnetostriction isotherms (T = 5 K) all of which reach saturation discontinuously, by way of ultrasharp multistep transitions. These are rather unusual kind of first-order phase transitions. By contrast, the field-dependent magnetostriction varies smoothly at temperatures exceeding 5 K. A huge positive magnetostrictive effect of ?V/V (20 K, 14 T) = 0.87% accompanies the field-induced first-order metamagnetic transition. In the vicinity of the Curie point, a magnetically driven giant NTE phenomenon with an average linear thermal expansion coefficient a(L) = -27 x 10(-6) K-1 is observed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/LM2023065" target="_blank" >LM2023065: Material growth and measurement laboratory</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Physics Letters
ISSN
0003-6951
e-ISSN
1077-3118
Volume of the periodical
122
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
192402
UT code for WoS article
000983779000005
EID of the result in the Scopus database
2-s2.0-85158838945