Ferromagnetism in ultrathin surface-free La0.7Sr0.3MnO3 layers in electrostatically defined heterostructures

被引：0

作者：

Galdi, A. ^{[1
,2
]}

Coppola, N. ^{[2
]}

Sacco, C. ^{[2
]}

Maritato, L. ^{[2
]}

Bencok, P. ^{[3
]}

Steadman, P. ^{[3
]}

Orgiani, P. ^{[4
,5
]}

Aruta, C. ^{[6
]}

机构：

[1] Cornell Univ, Cornell Lab Accelerator Based Sci & Educ, Ithaca, NY 14853 USA

[2] Univ Salerno, Dipartimento Ingn Ind, I-84084 Fisciano, SA, Italy

[3] Diamond Light Source, Didcot OX11 0DE, Oxon, England

[4] CNR IOM, TASC Lab, Area Sci Pk, I-34139 Trieste, Italy

[5] CNR SPIN, UOS Salerno, I-84084 Fisciano, Italy

[6] CNR SPIN, UOS Roma, Area Ric Tor Vergata, I-00133 Rome, Italy

来源：

PHYSICAL REVIEW MATERIALS | 2021年 / 5卷 / 08期

关键词：

MAGNETIC-ANISOTROPY; MANGANITE; CONFINEMENT; INTERFACE;

D O I：

10.1103/PhysRevMaterials.5.084409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrostatically defined perovskite oxide heterostructures, in which carriers are confined by the modulation of the A-site ion charge, offer new possibilities of tuning the magnetic properties of manganite oxides. We investigate the preferential orientation of ferromagnetic and antiferromagnetic moments in ultrathin La0.7Sr0.3MnO3 layers embedded in antiferromagnetic SrMnO3 as they undergo a metal-to-insulator transition with decreasing thickness. Our results evince the role of orbital occupation, metallicity, and competition of different magnetic phases, in absence of spurious effects occurring in thin films as a result of symmetry breaking at La0.7Sr0.3MnO3 interfaces and of incorporation of oxygen vacancies.

引用

页数：9

共 44 条

[1] [Anonymous], 1981, The Theory of Atomic Structure and Spectra
[2] Strain induced x-ray absorption linear dichroism in La0.7Sr0.3MnO3 thin films
Aruta, C
Ghiringhelli, G
Tebano, A
Boggio, NG
Brookes, NB
Medaglia, PG
Balestrino, G
[J]. PHYSICAL REVIEW B, 2006, 73 (23):
[3] Orbital occupation, atomic moments, and magnetic ordering at interfaces of manganite thin films
Aruta, C.
Ghiringhelli, G.
Bisogni, V.
Braicovich, L.
Brookes, N. B.
Tebano, A.
Balestrino, G.
[J]. PHYSICAL REVIEW B, 2009, 80 (01)
[4] Evolution of magnetic phases and orbital occupation in (SrMnO3)n/(LaMnO3)2n superlattices
Aruta, C.
Adamo, C.
Galdi, A.
Orgiani, P.
Bisogni, V.
Brookes, N. B.
Cezar, J. C.
Thakur, P.
Perroni, C. A.
De Filippis, G.
Cataudella, V.
Schlom, D. G.
Maritato, L.
Ghiringhelli, G.
[J]. PHYSICAL REVIEW B, 2009, 80 (14)
[5] X-RAY CIRCULAR-DICHROISM AND LOCAL MAGNETIC-FIELDS
CARRA, P
THOLE, BT
ALTARELLI, M
WANG, XD
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (05) : 694 - 697
[6] Nanoscale magnetic and charge anisotropies at manganite interfaces
Carreira, Santiago J.
Aguirre, Myriam H.
Briatico, Javier
Steren, Laura B.
[J]. RSC ADVANCES, 2019, 9 (66) : 38604 - 38611
[7] Magnetism at the interface between ferromagnetic and superconducting oxides
Chakhalian, J
Freeland, JW
Srajer, G
Strempfer, J
Khaliullin, G
Cezar, JC
Charlton, T
Dalgliesh, R
Bernhard, C
Cristiani, G
Habermeier, HU
Keimer, B
[J]. NATURE PHYSICS, 2006, 2 (04) : 244 - 248
[8] Epitaxial strain and thickness dependent structural, electrical and magnetic properties of La0.67Sr0.33MnO3films
Chaluvadi, Sandeep Kumar
Ajejas, Fernando
Orgiani, Pasquale
Lebargy, Sylvain
Minj, Albert
Flament, Stephane
Camarero, Julio
Perna, Paolo
Mechin, Laurence
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2020, 53 (37)
[9] Structural and magnetic phase diagrams of La1-xSrxMnO3 and Pr1-ySryMnO3 -: art. no. 094431
Chmaissem, O
Dabrowski, B
Kolesnik, S
Mais, J
Jorgensen, JD
Short, S
[J]. PHYSICAL REVIEW B, 2003, 67 (09)
[10] Insulating phase at low temperature in ultrathin La0.8Sr0.2MnO3 films
Feng, Yaqing
Jin, Kui-juan
Gu, Lin
He, Xu
Ge, Chen
Zhang, Qing-hua
He, Min
Guo, Qin-lin
Wan, Qian
He, Meng
Lu, Hui-bin
Yang, Guozhen
[J]. SCIENTIFIC REPORTS, 2016, 6

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