TY - JOUR
T1 - Zero Thermal Expansion in Magnetic and Metallic Tb(Co,Fe)2 Intermetallic Compounds
AU - Song, Yuzhu
AU - Chen, Jun
AU - Liu, Xinzhi
AU - Wang, Chinwei
AU - Zhang, Ji
AU - Liu, Hui
AU - Zhu, He
AU - Hu, Lei
AU - Lin, Kun
AU - Zhang, Shantao
AU - Xing, Xianran
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/1/17
Y1 - 2018/1/17
N2 - Due to the advantage of invariable length with temperatures, zero thermal expansion (ZTE) materials are intriguing but very rare especially for the metals based compounds. Here, we report a ZTE in the magnetic intermetallic compounds of Tb(Co,Fe)2 over a wide temperature range (123-307 K). A negligible coefficient of thermal expansion (αl = 0.48 × 10-6 K-1) has been found in Tb(Co1.9Fe0.1). Tb(Co,Fe)2 exhibits ferrimagnetic structure, in which the moments of Tb and Co/Fe are antiparallel alignment along the c axis. The intriguing ZTE property of Tb(Co,Fe)2 is formed due to the balance between the negative contribution from the Tb magnetic moment induced spontaneous magnetostriction and the positive role from the normal lattice expansion. The present ZTE intermetallic compounds are also featured by the advantages of wide temperature range, high electrical conductivity, and relatively high thermal conductivity.
AB - Due to the advantage of invariable length with temperatures, zero thermal expansion (ZTE) materials are intriguing but very rare especially for the metals based compounds. Here, we report a ZTE in the magnetic intermetallic compounds of Tb(Co,Fe)2 over a wide temperature range (123-307 K). A negligible coefficient of thermal expansion (αl = 0.48 × 10-6 K-1) has been found in Tb(Co1.9Fe0.1). Tb(Co,Fe)2 exhibits ferrimagnetic structure, in which the moments of Tb and Co/Fe are antiparallel alignment along the c axis. The intriguing ZTE property of Tb(Co,Fe)2 is formed due to the balance between the negative contribution from the Tb magnetic moment induced spontaneous magnetostriction and the positive role from the normal lattice expansion. The present ZTE intermetallic compounds are also featured by the advantages of wide temperature range, high electrical conductivity, and relatively high thermal conductivity.
UR - https://www.scopus.com/pages/publications/85040684925
U2 - 10.1021/jacs.7b12235
DO - 10.1021/jacs.7b12235
M3 - 文章
C2 - 29292996
AN - SCOPUS:85040684925
SN - 0002-7863
VL - 140
SP - 602
EP - 605
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 2
ER -