Strain-tuned enhancement of ferromagnetic Tc to 176 K in Sm-doped BiMnO3 thin films and determination of magnetic phase diagram

被引：16

作者：

Choi, Eun-Mi ^{[1
]}

Kleibeuker, Josee E. ^{[1
]}

MacManus-Driscoll, Judith L. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci, 27 Charles Babbage Rd, Cambridge CB3 0FS, England

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

英国工程与自然科学研究理事会; 欧洲研究理事会;

关键词：

CRYSTAL; TRANSITION;

D O I：

10.1038/srep43799

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

BiMnO3 is a promising multiferroic material but it's ferromagnetic T-c is well below room temperature and the magnetic phase diagram is unknown. In this work, the relationship between magnetic transition temperature (T-C) and the substrate induced (pseudo-) tetragonal distortion (ratio of out of-plane to in-plane lattice parameters, c/a) in BiMnO3 thin films, lightly doped to optimize lattice dimensions, was determined. For c/a > 0.99, hidden antiferromagnetism was revealed and the magnetisation versus temperature curves showed a tail behaviour, whereas for c/a < 0.99 clear ferromagnetism was observed. A peak T-c of up to 176 K, more than 70 K higher than for bulk BiMnO3, was achieved through precise strain tuning. The T-c was maximised for strong tensile in-plane strain which produced weak octahedral rotations in the out-of-plane direction, an orthorhombic-like structure, and strong ferromagnetic coupling.

引用

页数：8

共 44 条

[1] Structure determination of ferromagnetic perovskite BiMnO3 [J].

Atou, T ;

Chiba, H ;

Ohoyama, K ;

Yamaguchi, Y ;

Syono, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 145 (02) :639-642

[2] Effect of strain on the orbital and magnetic ordering of manganite thin films and their interface with an insulator [J].

Baena, A. ;

Brey, L. ;

Calderon, M. J. .

PHYSICAL REVIEW B, 2011, 83 (06)

[3] Origin of the monoclinic-to-monoclinic phase transition and evidence for the centrosymmetric crystal structure of BiMnO3 [J].

Belik, Alexei A. ;

Iikubo, Satoshi ;

Yokosawa, Tadahiro ;

Kodama, Katsuaki ;

Igawa, Naoki ;

Shamoto, Shinichi ;

Azuma, Masaki ;

Takano, Mikio ;

Kimoto, Koji ;

Matsui, Yoshio ;

Takayama-Muromachi, Eiji .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (04) :971-977

[4] Polar and nonpolar phases of BiMO3: A review [J].

Belik, Alexei A. .

JOURNAL OF SOLID STATE CHEMISTRY, 2012, 195 :32-40

[5] Nanoscale multiphase separation at La2/3Ca1/3MnO3/SrTiO3 interfaces -: art. no. 067210 [J].

Bibes, M ;

Balcells, L ;

Valencia, S ;

Fontcuberta, J ;

Wojcik, M ;

Jedryka, E ;

Nadolski, S .

PHYSICAL REVIEW LETTERS, 2001, 87 (06) :67210-1

[6] High-Temperature Magnetic Insulating Phase in Ultrathin La0.67Sr0.33MnO3 Films [J].

Boschker, Hans ;

Kautz, Jaap ;

Houwman, Evert P. ;

Siemons, Wolter ;

Blank, Dave H. A. ;

Huijben, Mark ;

Koster, Gertjan ;

Vailionis, Arturas ;

Rijnders, Guus .

PHYSICAL REVIEW LETTERS, 2012, 109 (15)

[7] Magnetic and electrical properties of Bi1-xSrxMnO3: Hole-doping effect on ferromagnetic perovskite BiMnO3 [J].

Chiba, H ;

Atou, T ;

Syono, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1997, 132 (01) :139-143

[8] Ferroelectric Sm-Doped BiMnO3 Thin Films with Ferromagnetic Transition Temperature Enhanced to 140 K [J].

Choi, Eun-Mi ;

Kursumovic, Ahmed ;

Lee, Oon Jew ;

Kleibeuker, Josee E. ;

Chen, Aiping ;

Zhang, Wenrui ;

Wang, Haiyan ;

MacManus-Driscoll, Judith L. .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (17) :14836-14843

[9] Ferromagnetism and ferroelectricity in epitaxial BiMnO3 ultra-thin films [J].

De Luca, G. M. ;

Preziosi, D. ;

Chiarella, F. ;

Di Capua, R. ;

Gariglio, S. ;

Lettieri, S. ;

Salluzzo, M. .

APPLIED PHYSICS LETTERS, 2013, 103 (06)

[10] Orbital ordering as the determinant for ferromagnetism in biferroic BiMnO3 -: art. no. 064425 [J].

dos Santos, AM ;

Cheetham, AK ;

Atou, T ;

Syono, Y ;

Yamaguchi, Y ;

Ohoyama, K ;

Chiba, H ;

Rao, CNR .

PHYSICAL REVIEW B, 2002, 66 (06) :644251-644254

← 1 2 3 4 5 →