Emergent reversible giant electroresistance in spacially confined La0.325Pr0.3Ca0.375MnO3 wires

被引：2

作者：

Cui Li-Min ^{[1
]}

Li Jie ^{[1
]}

Wang Jia ^{[1
]}

Zhang Yu ^{[1
]}

Zheng Dong-Ning ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

CHINESE PHYSICS B | 2014年 / 23卷 / 09期

基金：

中国国家自然科学基金;

关键词：

metal-insulator transition; micro-wire; phase separation; manganites; COLOSSAL-MAGNETORESISTIVE MANGANITE; PHASE-SEPARATION; TRANSITION; FILMS;

D O I：

10.1088/1674-1056/23/9/097103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Micro-patterning is considered to be a promising way to analyze phase-separated manganites. We investigate resistance in micro-patterned La0.325Pr0.3Ca0.375MnO3 wires with width of 10 mu m, which is comparable to the phase separation scale in this material. A reentrant of insulating state at the metal-insulator temperature T-p is observed and a giant resistance change of over 90% driven by electric field is achieved by suppression of this insulating state. This resistance change is mostly reversible. The I-V characteristics are measured in order to analyze the origin of the giant electroresistance and two possible explanations are proposed.

引用

页数：4

共 23 条

[1] Current switching of resistive states in magnetoresistive manganites
Asamitsu, A
Tomioka, Y
Kuwahara, H
Tokura, Y
[J]. NATURE, 1997, 388 (6637) : 50 - 52
[2] Complexity in strongly correlated electronic systems
Dagotto, E
[J]. SCIENCE, 2005, 309 (5732) : 257 - 262
[3] Colossal magnetoresistant materials: The key role of phase separation
Dagotto, E
Hotta, T
Moreo, A
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 344 (1-3): : 1 - 153
[4] Spatially inhomogeneous metal-insulator transition in doped manganites
Fäth, M
Freisem, S
Menovsky, AA
Tomioka, Y
Aarts, J
Mydosh, JA
[J]. SCIENCE, 1999, 285 (5433) : 1540 - 1542
[5] Garbarino G, 2006, PHYS REV B, V74, DOI [10.1103/PhysRevB.74.100401, 10.1103/PhysRevB.100401]
[6] Ferromagnetic domain structures and spin configurations measured in doped manganite
He, J. Q.
Volkov, V. V.
Beleggia, M.
Asaka, T.
Tao, J.
Schofield, M. A.
Zhu, Y.
[J]. PHYSICAL REVIEW B, 2010, 81 (09):
[7] THOUSANDFOLD CHANGE IN RESISTIVITY IN MAGNETORESISTIVE LA-CA-MN-O FILMS
JIN, S
TIEFEL, TH
MCCORMACK, M
FASTNACHT, RA
RAMESH, R
CHEN, LH
[J]. SCIENCE, 1994, 264 (5157) : 413 - 415
[8] Solid state physics - Phase separation scenario for manganese oxides and related materials
Moreo, A
Yunoki, S
Dagotto, E
[J]. SCIENCE, 1999, 283 (5410) : 2034 - 2040
[9] Probing electronic-phase-separated insulating domains in the metallic phase of patterned perovskite manganite microwires
Nakajima, T.
Tsuchiya, T.
Ueda, Y.
Kumagai, T.
[J]. PHYSICAL REVIEW B, 2009, 80 (02):
[10] Colossal-magnetoresistive manganite thin films
Prellier, W
Lecoeur, P
Mercey, B
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (48) : R915 - R944

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