Electric field control of the photoinduced resistance increase in La0.7Sr0.3MnO3/LaTiO3/SrTiO3 heterostructure

被引：9

作者：

Ghising, Pramod ^{[1
]}

Hossain, Z. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

来源：

PHYSICAL REVIEW B | 2019年 / 100卷 / 11期

关键词：

THIN-FILMS; SUPERCONDUCTIVITY; PHOTOCONDUCTIVITY; RESISTIVITY; MANGANITES; MODULATION; STATE;

D O I：

10.1103/PhysRevB.100.115119

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we study the effect of light and electric field on the electrical properties of a La0.7Sr0.3MnO3 film at 300 K Taking advantage of its charge, spin, orbital, and lattice degrees of freedom, we successfully show that light and electric field together can be used to tune the resistance states of the manganite system. Using applied gate voltage V-g and light, we are able to obtain a change in resistance of about +/- 7.5%. Furthermore, incorporating an ultrathin interfacial LaTiO3 layer provides valuable insight into the origin of the photoinduced effect. The observed photoinduced effect is attributed to photoexcited down-spin e(g down arrow) electrons, interfacial charge injection, and manipulation of orbital occupancy depending on the gate voltage and wavelength of light.

引用

页数：7

共 47 条

[21] Quantum Conductance Probing of Oxygen Vacancies in SrTiO3 Epitaxial Thin Film using Graphene [J].

Kang, Kyeong Tae ;

Kang, Haeyong ;

Park, Jeongmin ;

Suh, Dongseok ;

Choi, Woo Seok .

ADVANCED MATERIALS, 2017, 29 (18)

[22] Photocarrier injection effect on double exchange ferromagnetism in (La, Sr)MnO3/SrTiO3 heterostructure [J].

Katsu, H ;

Tanaka, H ;

Kawai, T .

APPLIED PHYSICS LETTERS, 2000, 76 (22) :3245-3247

[23] Orbital-state-mediated phase-control of manganites [J].

Konishi, Y ;

Fang, Z ;

Izumi, M ;

Manako, T ;

Kasai, M ;

Kuwahara, H ;

Kawasaki, M ;

Terakura, K ;

Tokura, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (12) :3790-3793

[24] Visible-light-enhanced gating effect at the LaAlO3/SrTiO3 interface [J].

Lei, Y. ;

Li, Y. ;

Chen, Y. Z. ;

Xie, Y. W. ;

Chen, Y. S. ;

Wang, S. H. ;

Wang, J. ;

Shen, B. G. ;

Pryds, N. ;

Hwang, H. Y. ;

Sun, J. R. .

NATURE COMMUNICATIONS, 2014, 5

[25] Visible-light-accelerated oxygen vacancy migration in strontium titanate [J].

Li, Y. ;

Lei, Y. ;

Shen, B. G. ;

Sun, J. R. .

SCIENTIFIC REPORTS, 2015, 5

[26] Electron Correlation in Oxygen Vacancy in SrTiO3 [J].

Lin, Chungwei ;

Demkov, Alexander A. .

PHYSICAL REVIEW LETTERS, 2013, 111 (21)

[27] Strain-Mediated Inverse Photoresistivity in SrRuO3/La0.7Sr0.3MnO3 Superlattices [J].

Liu, Heng-Jui ;

Wei, Tzu-Chiao ;

Zhu, Yuan-Min ;

Liu, Rui-Rui ;

Tzeng, Wen-Yen ;

Tsai, Chih-Ya ;

Zhan, Qian ;

Luo, Chih-Wei ;

Yu, Pu ;

He, Jr-Hau ;

Chu, Ying-Hao ;

He, Qing .

ADVANCED FUNCTIONAL MATERIALS, 2016, 26 (05) :729-737

[28] Room-temperature photoswitching in La0.6Sr0.4MnO3 film [J].

Liu, XJ ;

Machida, A ;

Moritomo, Y ;

Ichida, M ;

Nakamura, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2000, 39 (7A) :L670-L672

[29] Photoinduced resistivity change due to spin-disorder in a manganite film [J].

Liu, XJ ;

Moritomo, Y ;

Nakamura, A ;

Asano, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2000, 39 (12A) :L1233-L1235

[30] Photoinduced formation of charge-ordering clusters in a manganite film [J].

Liu, XJ ;

Moritomo, Y ;

Machida, A ;

Nakamura, A ;

Tanaka, H ;

Kawai, T .

PHYSICAL REVIEW B, 2001, 63 (11)

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