Andreev reflection spectroscopy of ferromagnetic Fe<sub>0.26</sub>TaS<sub>2</sub> with layered structure

姓名
邮箱
手机号码
标题
留言内容
验证码

Abstract

An elementary mission of spintronics research is to prevent the interface reacting in spin device and extract spin polarization of ferromagnetic material reliably. Layered transition metal sulfide has very strong anisotropic magnetism, magnetoresistance, and unique Hall effect. It provides a good platform for studying the magnetic order related physical phenomena and may lay a foundation for spintronic applications. In this work, the magnetism, electronic transport and Andreev reflection spectrum of a novel ferromagnetic material Fe _0.26TaS ₂with a layers-stacked structure are measured. Strong magnetic anisotropy, double-peak magnetoresistance and anomalous Hall effect are found. In the magnetic measurement, the strong magnetic anisotropy behavior in Fe _0.26TaS ₂single crystal is observed. Curie temperature T _Cof the Fe _0.26TaS ₂single crystal is confirmed by zero field cooling, field cooling and Arrot plot. The electronic transport in the Fe _0.26TaS ₂single crystal also reveals strong anisotropic behaviors, such as butterfly-like magnetoresistance and obvious anomalous hall effect below T _C. To obtain the spin polarization of Fe _xTaS ₂, we fabricate an Fe _xTaS ₂/superconductor Andreev junction to measure the spin polarization that is fitted by the modified Blonder-Tinkham-Klapwijk (BTK) theory. Perhaps the diffusion of Pb can form an alloy structure, creating another superconductor behavior. The two-gap BTK theory confirms our hypothesis, and the result spin polarization can reach 26%. To avoid the interference from Pb alloy superconductor, we also fabricate an Fe _0.26TaS ₂/Al/Pb superconductor junction by evaporating Al and then Pb film on the surface of Fe _0.26TaS ₂in sequence. The results of BTK fit show that the spin polarization from the first technical route cannot be reliable due to the tunneling layer on the Al interface. In order to obtain a clean interface, Fe _0.26TaS ₂/NbSe ₂junction is fabricated through mechanical-exfoliation and dry-transfer method. Through the Andreev reflection spectrum of this junction, the spin polarization of Fe _0.26TaS ₂is extracted to be 47% ± 7%. For various two-dimensional ferromagnetic materials, our work suggests that the dry-transfer method is well applicable in spin polarization extraction. The results of spin polarization indicate that the Fe _0.26TaS ₂is a promising candidate of next-generation material of spintronics.

Keywords:

Authors and contacts

Corresponding author:Xu Tong-Shuai,xutongshuai@iphy.ac.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant Nos 61425015, 11704006), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB28000000), and the National Key Research and Development Program of China (Grant No. 2016YFA0300600)

FullText HTML: translate this paragraph

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]
[37]
[38]

Cited By

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]
[37]
[38]

[1]	Wang Shao-Xia, Zhao Xu-Cai, Pan Duo-Qiao, Pang Guo-Wang, Liu Chen-Xi, Shi Lei-Qian, Liu Gui-An, Lei Bo-Cheng, Huang Yi-Neng, Zhang Li-Li.First principle study of influence of transition metal (Cr, Mn, Fe, Co) doping on magnetism of TiO₂. Acta Physica Sinica, 2020, 69(19): 197101.doi:10.7498/aps.69.20200644
[2]	Wang Zong, Hou Xing-Yuan, Pan Bo-Jin, Gu Ya-Dong, Zhang Meng-Di, Zhang Fan, Chen Gen-Fu, Ren Zhi-An, Shan Lei.Point-contact Andreev reflection spectroscopy on Re₃W superconductor. Acta Physica Sinica, 2019, 68(1): 017402.doi:10.7498/aps.68.20181996
[3]	Yang Zhi, Zhang Yue, Zhou Qian-Qian, Wang Yu-Hua.Electric-field control of magnetic properties of Fe3O4 single-crystal film investigated by micro-magnetic simulation. Acta Physica Sinica, 2017, 66(13): 137501.doi:10.7498/aps.66.137501
[4]	Liu Hong-Yan, Liu Zhu-Hong, Li Ge-Tian, Ma Xing-Qiao.Influences of Ga content on the structure and magnetic properties of Mn2 -xNiGa1+x alloys. Acta Physica Sinica, 2016, 65(4): 048102.doi:10.7498/aps.65.048102
[5]	Jiang En-Hai, Zhu Xing-Feng, Chen Ling-Fu.First-principles study of the electronic structure, magnetism, and spin-polarization in Heusler alloy Co2MnAl(100) surface. Acta Physica Sinica, 2015, 64(14): 147301.doi:10.7498/aps.64.147301
[6]	Jiang Li-Na, Zhang Yu-Bin, Dong Shun-Le.Effect of bipolarons on spin polarized transport in magnetic permeated sublayer of organic spin device. Acta Physica Sinica, 2015, 64(14): 147104.doi:10.7498/aps.64.147104
[7]	Yang Yu-Qi, Gao Qing-Qing, Li Guan-Nan.Structure transformation and magnetisms in Ho2Ni7-xFex compounds. Acta Physica Sinica, 2013, 62(1): 016103.doi:10.7498/aps.62.016103
[8]	Wang Rui-Qin, Gong Jian, Wu Jian-Ying, Chen Jun.Time of spin-polarized tunneling through a symmetric double-barrier quantum well structure. Acta Physica Sinica, 2013, 62(8): 087303.doi:10.7498/aps.62.087303
[9]	Du Yin, Wang Wen-Hong, Zhang Xiao-Ming, Liu En-Ke, Wu Guang-Heng.Structural, magnetic, transport, and half-metallic properties of Fe2Co1-xCrxSi Heusler alloys. Acta Physica Sinica, 2012, 61(14): 147304.doi:10.7498/aps.61.147304
[10]	Luo Li-Jin, Zhong Chong-Gui, Fang Jing-Huai, Zhao Yong-Lin, Zhou Peng-Xia, Jiang Xue-Fan.Responses of electronic structure and magnetism to tetragonal distortion and their influence on pressure for the Heusler alloy Mn2 NiAl. Acta Physica Sinica, 2011, 60(12): 127502.doi:10.7498/aps.60.127502
[11]	Zhao Kun, Zhang Kun, Wang Jia-Jia, Yu Jin, Wu San-Xie.A first principles study on tetragonal distortion, magnetic property and elastic constants of Pd2 CrAl Heusler alloy. Acta Physica Sinica, 2011, 60(12): 127101.doi:10.7498/aps.60.127101
[12]	Gao Tan-Hua, Lu Dao-Ming, Wu Shun-Qing, Zhu Zi-Zhong.First-principles calculations of magnetism of Fe atomic sheet. Acta Physica Sinica, 2011, 60(4): 047502.doi:10.7498/aps.60.047502
[13]	He Zhi-Gang, Cheng Xing-Hua, Gong Min, Cai Juan-Lu, Shi Rui-Ying.The factors influencing spin-polarized transport in magnetic pn junction. Acta Physica Sinica, 2010, 59(9): 6521-6526.doi:10.7498/aps.59.6521
[14]	Han Li-An, Chen Chang-Le, Dong Hui-Ying, Wang Jian-Yuan, Gao Guo-Mian, Luo Bing-Cheng.Magnetic and electrical properties of layered perovskite La1.3Sr1.7Mn1-xCuxO7. Acta Physica Sinica, 2008, 57(1): 541-544.doi:10.7498/aps.57.541
[15]	Han Wei, Chang Shu-Quan, Dai Yao-Dong, Chen Da, Huang Yan-Jun.Magnetism and Mssbauer spectra of cyanide-bridged Ni-Fe nano-molecular-magnets. Acta Physica Sinica, 2008, 57(4): 2493-2499.doi:10.7498/aps.57.2493
[16]	Liu Jin-Hong, Zhang Ling-Fei, Tian Geng-Fang, Li Ji-Chen, Li Fa-Shen.Structure and magnetic properties of NiFe2O4 nanoparticles prepared by low-temperature solid-state reaction. Acta Physica Sinica, 2007, 56(10): 6050-6055.doi:10.7498/aps.56.6050
[17]	Pang Li-Jia, Sun Guang-Fei, Chen Ju-Fang, Qiang Wen-Jiang, Zhang Jin-Biao, Li Wen-An.Study of magnetic properties of Pr2Fe14B/α-Fe nanocomposite magnets. Acta Physica Sinica, 2006, 55(6): 3049-3053.doi:10.7498/aps.55.3049
[18]	Zhang Wei, Qian Zheng-Nan, Sui Yu, Liu Yu-Qiang, Su Wen-Hui, Zhang Ming, Liu Zhu-Hong, Liu Guo-Dong, Wu Guang-Heng.Magnetism and transport properties of Heusler alloy Co2TiSn. Acta Physica Sinica, 2005, 54(10): 4879-4883.doi:10.7498/aps.54.4879
[19]	Wang Ben-Yang, Qian Zheng-Nan, Sui Yu, Liu Yu-Qiang, Su Wen-Hui, Zhang Ming, Liu Zhu-Hong, Liu Guo-Dong, Wu Guang-Heng.Magnetism and transport properties of Heuser alloy Cu2VAl. Acta Physica Sinica, 2005, 54(7): 3386-3390.doi:10.7498/aps.54.3386
[20]	Guo Hong-Yong, Liu Bao-Dan, Tang Ning, Luo Hong-Zhi, Li Yang-Xian, Yang Fu-Ming, Wu Guang-Heng.The effect of Co substitution and stabilizing element on the structure and magnetic properties of Nd3(Fe,Co,M)29(M=Ti,V,Cr) compounds. Acta Physica Sinica, 2004, 53(1): 189-193.doi:10.7498/aps.53.189

Catalog

Vol. 68, Issue 24 - 2019-12-20

Metrics

Abstract views:9509
PDF Downloads:224
Cited By:0

Search

Article