Strain-induced ferroelectricity and spin-lattice coupling in SrMnO3 thin films

被引：56

作者：

Guo, J. W. ^{[1
,2
]}

Wang, P. S. ^{[3
,4
]}

Yuan, Y. ^{[5
,6
]}

He, Q. ^{[7
]}

Lu, J. L. ^{[3
,4
]}

Chen, T. Z. ^{[1
,2
]}

Yang, S. Z. ^{[1
,2
]}

Wang, Y. J. ^{[1
,2
]}

Erni, R. ^{[8
]}

Rossell, M. D. ^{[8
]}

Gopalan, V. ^{[5
,6
]}

Xiang, H. J. ^{[3
,4
,9
]}

Tokura, Y. ^{[10
]}

Yu, P. ^{[1
,2
,10
,11
]}

机构：

[1] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[3] Fudan Univ, Key Lab Computat Phys Sci, Minist Educ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[4] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[5] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[6] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

[7] Univ Durham, Dept Phys, Durham DH1 3LE, England

[8] Empa, Electron Microscopy Ctr, Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland

[9] Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[10] RIKEN, Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan

[11] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW B | 2018年 / 97卷 / 23期

基金：

英国工程与自然科学研究理事会; 中国国家自然科学基金;

关键词：

TOTAL-ENERGY CALCULATIONS; POLARIZATION; MULTIFERROICS; MAGNETISM; METALS; OXIDE;

D O I：

10.1103/PhysRevB.97.235135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Designing novel multiferroic materials with simultaneous ferroelectric and magnetic orders has been one of the focal points over the last decade due to the promising applications and rich physics involved. In this study, using epitaxial strain (up to 3.8%) as tuning knob, we successfully introduce multiferroicity with prominent high-temperature ferroelectricity into the paraelectric SrMnO3. More interestingly, the experimental temperature-dependent ferroelectric and magnetic studies suggest that the emergent antiferromagnetic order below 100 K greatly enhances the ferroelectric polarization due to the spin-order-induced ionic displacements. We envision that the strain-mediated spin-phonon coupling can be utilized as a pathway to discover functionalities in a wide range of antiferromagnetic insulators with delicate epitaxial manipulations.

引用

页数：8

共 53 条

[1] Strain-driven oxygen deficiency in multiferroic SrMnO3 thin films
Agrawal, P.
Guo, J.
Yu, P.
Hebert, C.
Passerone, D.
Erni, R.
Rossell, M. D.
[J]. PHYSICAL REVIEW B, 2016, 94 (10)
[2] Strain-controlled oxygen vacancy formation and ordering in CaMnO3
Aschauer, Ulrich
Pfenninger, Reto
Selbach, Sverre M.
Grande, Tor
Spaldin, Nicola A.
[J]. PHYSICAL REVIEW B, 2013, 88 (05)
[3] Becher C, 2015, NAT NANOTECHNOL, V10, P661, DOI [10.1038/nnano.2015.108, 10.1038/NNANO.2015.108]
[4] Polar octahedral rotations: A path to new multifunctional materials
Benedek, Nicole A.
Mulder, Andrew T.
Fennie, Craig J.
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2012, 195 : 11 - 20
[5] Engineering Multiferroism in CaMnO3
Bhattacharjee, Satadeep
Bousquet, Eric
Ghosez, Philippe
[J]. PHYSICAL REVIEW LETTERS, 2009, 102 (11)
[6] PROJECTOR AUGMENTED-WAVE METHOD
BLOCHL, PE
[J]. PHYSICAL REVIEW B, 1994, 50 (24): : 17953 - 17979
[7] Phase diagram of Sr1-xBaxMnO3 as a function of chemical doping, epitaxial strain, and external pressure
Chen, Hanghui
Millis, Andrew J.
[J]. PHYSICAL REVIEW B, 2016, 94 (16)
[8] Multiferroics: a magnetic twist for ferroelectricity
Cheong, Sang-Wook
Mostovoy, Maxim
[J]. NATURE MATERIALS, 2007, 6 (01) : 13 - 20
[9] Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study
Dudarev, SL
Botton, GA
Savrasov, SY
Humphreys, CJ
Sutton, AP
[J]. PHYSICAL REVIEW B, 1998, 57 (03) : 1505 - 1509
[10] Magnetic and electric phase control in epitaxial EuTiO3 from first principles
Fennie, Craig J.
Rabe, Karin M.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (26)

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