Control of magnetic anisotropy by orbital hybridization with charge transfer in (La0.67Sr0.33MnO3)n/(SrTiO3)n superlattice

Zhang, Bangmin; Wu, Lijun; Zheng, Jincheng; Yang, Ping; Yu, Xiaojiang; Ding, Jun; Heald, Steve M.; Rosenberg, Richard A.; Venkatesan, Thirumalai Venky; Chen, Jingsheng; Sun, Cheng -Jun; Zhu, Yimei; Chow, Gan Moog

doi:10.1038/s41427-018-0084-8

Control of magnetic anisotropy by orbital hybridization with charge transfer in (La_0.67Sr_0.33MnO₃)_n/(SrTiO₃)_n superlattice

Journal Article · Tue Sep 25 04:00:00 EDT 2018 · NPG Asia Materials

DOI:https://doi.org/10.1038/s41427-018-0084-8· OSTI ID:1483749

Zhang, Bangmin ^[1]; ^[2]; ^[3]; Yang, Ping ^[1]; Yu, Xiaojiang ^[1]; Ding, Jun ^[1]; ^[4]; Rosenberg, Richard A. ^[4]; Venkatesan, Thirumalai Venky ^[1]; ^[1]; Sun, Cheng -Jun ^[4]; Zhu, Yimei ^[2]; Chow, Gan Moog ^[1]

National Univ. of Singapore (Singapore)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Xiamen Univ., Xiamen (China); Xiamen Univ. Malaysia, Selangor (Malaysia)
Argonne National Lab. (ANL), Argonne, IL (United States)

Here, the chemical asymmetry at the hetero-structure interface offers an effective opportunity to design desirable electronic structures by controlling charge transfer and orbital hybridization across the interface. However, controlling the hetero-interface remains a daunting task. Here, we report the modulation of interfacial coupling of (La_0.67Sr_0.33MnO₃)_n/(SrTiO₃)_n superlattices by manipulating the periodic thickness with n unit cells of SrTiO₃ and n unit cells of La_0.67Sr_0.33MnO₃ with a fixed thickness of ~120 unit cells. The easy axis of magnetic anisotropy rotates ~45° towards the out-of-plane direction from n = 10 to n = 2 at reduced temperature T_Re = T/T_S = 0.87, where T_S is the temperature at the onset of magnetization.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0012704

OSTI ID:: 1483749

Report Number(s):: BNL--209514-2018-JAAM

Journal Information:: NPG Asia Materials, Journal Name: NPG Asia Materials Journal Issue: 9 Vol. 10; ISSN 1884-4049

Publisher:: Nature Publishing Group AsiaCopyright Statement

Country of Publication:: United States

Language:: English

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