Negative Thermal Expansion of the Dy$_{2}$Fe$_{16}$Cr Compound
Li-Yu HAO1 , Tie YANG1** , Xiao-Tian WANG1 , Ming TAN2**
1 School of Physical Science and Technology, Southwest University, Chongqing 4007152 College of Science, Henan Agricultural University, Zhengzhou 450002
Abstract ：Structural, thermal expansion, and magnetic properties of the Dy$_{2}$Fe$_{16}$Cr compound are investigated by means of x-ray diffraction and magnetization measurements. The Dy$_{2}$Fe$_{16}$Cr compound has a hexagonal Th$_{2}$Ni$_{17}$-type structure. There exists a negative thermal expansion resulting from a strong spontaneous magnetostriction in the magnetic state of the Dy$_{2}$Fe$_{16}$Cr compound. The average thermal expansion coefficient is $-0.794\times 10^{-5}$/K in the temperature range 292–407 K. The spontaneous magnetostrictive deformation and the Curie temperature are discussed.
收稿日期: 2019-04-12
出版日期: 2019-05-18
:
65.60.+a
(Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc.)
75.80.+q
(Magnetomechanical effects, magnetostriction)
75.30.Et
(Exchange and superexchange interactions)
75.60.Ej
(Magnetization curves, hysteresis, Barkhausen and related effects)
[1] Mary T A, Evans J S O, Vogt T and Sleight A W 1996 Science 272 90 [2] G?bara P, Cesnek M and Bednarcik J 2019 Curr. Appl. Phys. 19 188 [3] Song Y Z, Chen J, Liu X Z, Wang C W, Zhang J, Liu H, Zhu H, Hu L, Lin K, Zhang S T and Xing X R 2018 J. Am. Chem. Soc. 140 602 [4] Wang H P, Zhao J F, Liu W and Wei B 2018 J. Appl. Phys. 124 215107 [5] Hao Y M, Zhao M and Zhou Y 2005 J. Appl. Phys. 98 076101 [6] Hao Y M, Zhang X M, Wang B W, Yuan Y Z and Wang F 2010 J. Appl. Phys. 108 023915 [7] Hao Y M, Liang F F, Zhang X M, Wu Y Z, Qin H W and Hu J F 2011 IEEE Trans. Magn. 47 3614 [8] Hao Y M, Zhou Y and Zhao M 2005 J. Appl. Phys. 97 116102 [9] Hao Y M, Zhou Y and Zhao M 2005 Scr. Mater. 53 357 [10] Hao Y M, Tan M, Wang W and Wang F 2010 Chin. Phys. B 19 067502 [11] Hao Y M, Yan Q W, Zhang P L, Sun X D, Wang F W and Shen B G 1997 Acta Phys. Sinca (Overseas Ed.) 6 440 [12] Hao Y M, Zhang P L, Zhang J X, Sun X D, Yan Q W, Ridwan, Mujamilah, Gunawan and Marsonkohadi 1996 J. Phys. C 8 1321 [13] Hao Y M, Zhang Y Y, Jiang X Y, Gao C J and Wu Y Z 2009 Chin. Phys. Lett. 26 026501
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
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2019, Vol. 36 
