Enormous electroresistance and field effect studies on LaMnO3-δ / La0.7Ca0.3MnO3 / LaAlO3 manganite - manganite composite structure

被引：2

作者：

Rajyaguru, Bhargav ^{[1
]}

Gadani, Keval ^{[2
]}

Keshvani, M. J. ^{[3
]}

Dhruv, Davit ^{[1
]}

Joshi, A. D. ^{[4
]}

Asokan, K. ^{[5
,6
]}

Choudhary, R. J. ^{[7
]}

Phase, D. M. ^{[7
]}

Shah, N. A. ^{[1
]}

Solanki, P. S. ^{[1
]}

机构：

[1] Saurashtra Univ, Dept Phys, Rajkot 360005, India

[2] Indian Inst Teacher Educ, Dept Phys, Ctr Educ, Gandhinagar 382016, India

[3] Marwadi Univ, Dept Phys, Rajkot 360003, Gujarat, India

[4] Saurashtra Univ, Dept Nanosci & Adv Mat, Rajkot 360005, India

[5] Univ Petr, Dept Phys, Energy Studies UPES, Dehra Dun 248007, India

[6] Univ Petr, Ctr Interdisciplinary Res, Energy Studies UPES, Dehra Dun 248007, India

[7] UGC DAE Consortium Sci Res, Khandwa Rd, Indore 452001, India

来源：

MATERIALS RESEARCH BULLETIN | 2024年 / 170卷

关键词：

Electroresistance; Field effect studies; Chemical solution deposition; Layered composite; Manganite; CURRENT-VOLTAGE CHARACTERISTICS; PHASE-TRANSITION; THIN-FILMS; TRANSPORT; MAGNETORESISTANCE; MAGNETOTRANSPORT; MECHANISMS; INTERFACE;

D O I：

10.1016/j.materresbull.2023.112548

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Field effect configuration (FEC) coupled field effect studies (FES) is one of the prime requisites for the development of spintronic based logic and memory devices having better sensitivities for external perturbations specifically while scaling down the technology. In this communication, LaMnO3-delta / La0.7Ca0.3MnO3 / LaAlO3 (LMO / LCMO / LAO) manganite - manganite composite structure was successfully fabricated using cost effective chemical solution deposition (CSD) method. FEC coupled FES have been performed across the electrically polarizable LMO layer and LCMO conducting channel. Enormous room temperature colossal electroresistance (CER) has been acquired similar to 7000 % under 2 MV/cm forward biased control electric field and similar to 8.5 x 10(5) % under 0.9 MV/cm reverse biased control electric field. Elegant modifications in the resistive behavior have been understood on the bases of charge carrier density alterations, interface modifications, phase separation, Mott-type phase transformation and formation-break down of depletion region across the manganite - manganite composite structure.

引用

页数：13

共 43 条

[1] Resistivity and magnetoresistance behaviors of La0.7Sr0.3MnO3-BiFeO3 matrix-particles composites [J].