Cluster glass induced unconventional exchange bias in epitaxial LaMnO3/SrMnO3 bilayers

Yu, Tao1; Chen, Pingbo1; Zhou, Liang1; Ning, Xingkun2; Deng, Bei1; Shi, Xingqiang1; He, Hongtao1

2019-05

10.1016/j.matlet.2019.01.119

MATERIALS LETTERS   影响因子和分区

0167-577X

1873-4979

Unconventional exchange bias (EB) has been observed in epitaxially grown manganite bilayers composed of ferromagnetic LaMnO3 and G-type antiferromagnetic SrMnO3, with the Curie temperature T-C of LaMnO3 lower than the Neel temperature T-N of SrMnO3. A maximum EB field of 254 Oe at 2 K is achieved and the unconventional EB appears below a blocking temperature of about 150 K, very close to the T-C of the LaMnO3 layer. Such an effect is believed to arise from an interfacial cluster-glass-like state due to the spin frustration at the interface in the LaMnO3/SrMnO3 bilayer. (C) 2019 Elsevier B.V. All rights reserved.

Magnetic materials Thin films Epitaxial growth Interfaces

SCI ; EI

英语

第一 ; 通讯

Innovation Commission of Shenzhen Municipality[KQJSCX20170727090712763]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000459869900025

ELSEVIER SCIENCE BV

20190606464487

Epitaxial growth ; Films ; Glass ; Interface states ; Interfaces (materials) ; Lanthanum compounds ; Magnetic materials ; Magnetic thin films ; Manganites ; Spin glass ; Strontium compounds ; Thin films

Magnetic Materials:708.4 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Glass:812.3 ; Classical Physics; Quantum Theory; Relativity:931 ; High Energy Physics; Nuclear Physics; Plasma Physics:932 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China

Yu, Tao,Chen, Pingbo,Zhou, Liang,et al. Cluster glass induced unconventional exchange bias in epitaxial LaMnO3/SrMnO3 bilayers[J]. MATERIALS LETTERS,2019,242:95-98.

Yu, Tao.,Chen, Pingbo.,Zhou, Liang.,Ning, Xingkun.,Deng, Bei.,...&He, Hongtao.(2019).Cluster glass induced unconventional exchange bias in epitaxial LaMnO3/SrMnO3 bilayers.MATERIALS LETTERS,242,95-98.

Yu, Tao,et al."Cluster glass induced unconventional exchange bias in epitaxial LaMnO3/SrMnO3 bilayers".MATERIALS LETTERS 242(2019):95-98.