Strain-induced Curie temperature variation in La0.9Sr0.1MnO3 thin films

被引：27

作者：

Yin, Lu ^{[1
]}

Wang, Chuanbin ^{[1
]}

Shen, Qiang ^{[1
]}

Zhang, Lianmeng ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 98期

基金：

中国国家自然科学基金;

关键词：

METAL-INSULATOR-TRANSITION; COLOSSAL-MAGNETORESISTANCE; BOLOMETRIC APPLICATIONS; TRANSPORT-PROPERTIES; DOPED MANGANITES; DOUBLE EXCHANGE; LA1-XSRXMNO3; PHYSICS; RESISTIVITY; COEXISTENCE;

D O I：

10.1039/c6ra22392c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, La0.9Sr0.1MnO3 thin films were grown epitaxially on SrTiO3, LaAlO3 and MgO substrates, and their structural, electrical and magnetic properties were investigated, aiming at revealing and explaining the strain effects on the physical properties of La0.9Sr0.1MnO3 films. Compared with the compressive strained film on LaAlO3, the tensile strained films show a higher or lower Curie temperature when grown on SrTiO3 or MgO. The films on SrTiO3 and LaAlO3 show ferromagnetic metallic state at low temperature, while a ferromagnetic insulating state is observed in that on MgO. More valuably, significant enhanced magnetoresistance around room temperature is observed in the films grown on SrTiO3 and LaAlO3. The strain-induced T-C variation in La0.9Sr0.1MnO3 films could not be explained by double-exchange mechanism alone, and the strong electron-phonon coupling originating from Jahn-Teller distortion of the MnO6 octahedra should be also taken into consideration. Based on this, we successfully derive a simplified equation for TC to explain quantitatively such an anomalous strain effect.

引用

页码：96093 / 96102

页数：10

共 65 条

[1] Effect of biaxial strain on the electrical and magnetic properties of (001) La0.7Sr0.3MnO3 thin films [J].

Adamo, C. ;

Ke, X. ;

Wang, H. Q. ;

Xin, H. L. ;

Heeg, T. ;

Hawley, M. E. ;

Zander, W. ;

Schubert, J. ;

Schiffer, P. ;

Muller, D. A. ;

Maritato, L. ;

Schlom, D. G. .

APPLIED PHYSICS LETTERS, 2009, 95 (11)

[2] Strain-induced metal-insulator phase coexistence in perovskite manganites [J].

Ahn, KH ;

Lookman, T ;

Bishop, AR .

NATURE, 2004, 428 (6981) :401-404

[3] Effects of uniaxial strain in LaMnO3 -: art. no. 115103 [J].

Ahn, KH ;

Millis, AJ .

PHYSICAL REVIEW B, 2001, 64 (11)

[4] Combustion synthesis and properties of strontium substituted lanthanum manganites La1-xSrxMnO3 (0<=x<=0.3) [J].

Aruna, ST ;

Muthuraman, M ;

Patil, KC .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (12) :2499-2503

[5] Strain induced x-ray absorption linear dichroism in La0.7Sr0.3MnO3 thin films [J].

Aruta, C ;

Ghiringhelli, G ;

Tebano, A ;

Boggio, NG ;

Brookes, NB ;

Medaglia, PG ;

Balestrino, G .

PHYSICAL REVIEW B, 2006, 73 (23)

[6] Colossal electroresistance without colossal magnetoresistance in La0.9Sr0.1MnO3 [J].

Biskup, N. ;

de Andres, A. ;

Nemes, N. M. ;

Garcia-Hernandez, M. ;

Glazyrin, K. V. ;

Mukovskii, Y. M. .

APPLIED PHYSICS LETTERS, 2007, 90 (22)

[7] Relevance of cooperative lattice effects and stress fields in phase-separation theories for CMR manganites [J].

Burgy, J ;

Moreo, A ;

Dagotto, E .

PHYSICAL REVIEW LETTERS, 2004, 92 (09) :097202-1

[8] Strain effect on electronic transport and ferromagnetic transition temperature in La0.9Sr0.1MnO3 thin films -: art. no. 174402 [J].

Chen, XJ ;

Soltan, S ;

Zhang, H ;

Habermeier, HU .

PHYSICAL REVIEW B, 2002, 65 (17) :1744021-1744026

[9] Evaluation of manganite films on silicon for uncooled bolometric applications [J].

Choudhary, RJ ;

Ogale, AS ;

Shinde, SR ;

Hullavarad, S ;

Ogale, SB ;

Venkatesan, T ;

Bathe, RN ;

Patil, SI ;

Kumar, R .

APPLIED PHYSICS LETTERS, 2004, 84 (19) :3846-3848

[10] High mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlattice [J].

Cossu, F. ;

Singh, N. ;

Schwingenschloegl, U. .

APPLIED PHYSICS LETTERS, 2013, 102 (04)

← 1 2 3 4 5 6 7 →