Effect of strain and dimensionality on the properties of manganites

C. Adamo, R. Misra, S. A. Denev, A. SenGupta, J. A. Mundy, J. H. Lee, D. A. Muller, Venkatraman Gopalan, P. Schiffer, D. G. Schlom

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Strain and dimensional confinement can be used to tune magnetic and ferroelectric properties or enhance device performance. In epitaxial films, the different lattice spacing of an underlying substrate can be used to impose a biaxial strain. We have studied the effect of the substrate-induced biaxial strain on the electrical conductivity and magnetic properties of manganite compounds. Epitaxial (001) La 0.7Sr 0.3MnO 3 thin films have been grown by reactive molecular-beam epitaxy (MBE) on single crystalline substrates, varying the substrate-induced biaxial strain from -2.3% to +3.2%. The strain caused the Curie temperature to decrease by up to 100 K in very good agreement with the predictions of Millis et al. [A. J. Millis, T. Darling, and A. Migliori, J. Appl. Phys. 83, 1588 (1998)]. The effect of dimensional confinement on manganites was also investigated in thin films by synthesizing a superlattice of two formula-unit-thick layers of CaMnO 3 separated by CaO double layers, i.e., the n=2 Ruddlesden-Popper phase Ca 3Mn 2O 7. Magnetization measurements on 30 nm thick (001)-oriented Ca 3Mn 2O 7 thin films grown on (110) YAlO 3 substrates by MBE reveal a Neél transition temperature of T N=115 K, similar to bulk Ca 3Mn 2O 7, but 10 K lower than thick CaMnO 3 films grown on this same substrate.

Original languageEnglish (US)
Title of host publicationPhysics and Technology of High-k Materials 9
Pages283-292
Number of pages10
Edition3
DOIs
StatePublished - Dec 1 2011
Event9th International Symposium on High Dielectric Constant and Other Dielectric Materials for Nanoelectronics and Photonics - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 10 2011Oct 12 2011

Publication series

NameECS Transactions
Number3
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other9th International Symposium on High Dielectric Constant and Other Dielectric Materials for Nanoelectronics and Photonics - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period10/10/1110/12/11

Fingerprint

Manganites
Substrates
Molecular beam epitaxy
Thin films
Epitaxial films
Curie temperature
Crystal lattices
Superconducting transition temperature
Ferroelectric materials
Magnetization
Magnetic properties
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Adamo, C., Misra, R., Denev, S. A., SenGupta, A., Mundy, J. A., Lee, J. H., ... Schlom, D. G. (2011). Effect of strain and dimensionality on the properties of manganites. In Physics and Technology of High-k Materials 9 (3 ed., pp. 283-292). (ECS Transactions; Vol. 41, No. 3). https://doi.org/10.1149/1.3633045
Adamo, C. ; Misra, R. ; Denev, S. A. ; SenGupta, A. ; Mundy, J. A. ; Lee, J. H. ; Muller, D. A. ; Gopalan, Venkatraman ; Schiffer, P. ; Schlom, D. G. / Effect of strain and dimensionality on the properties of manganites. Physics and Technology of High-k Materials 9. 3. ed. 2011. pp. 283-292 (ECS Transactions; 3).
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Adamo, C, Misra, R, Denev, SA, SenGupta, A, Mundy, JA, Lee, JH, Muller, DA, Gopalan, V, Schiffer, P & Schlom, DG 2011, Effect of strain and dimensionality on the properties of manganites. in Physics and Technology of High-k Materials 9. 3 edn, ECS Transactions, no. 3, vol. 41, pp. 283-292, 9th International Symposium on High Dielectric Constant and Other Dielectric Materials for Nanoelectronics and Photonics - 220th ECS Meeting, Boston, MA, United States, 10/10/11. https://doi.org/10.1149/1.3633045

Effect of strain and dimensionality on the properties of manganites. / Adamo, C.; Misra, R.; Denev, S. A.; SenGupta, A.; Mundy, J. A.; Lee, J. H.; Muller, D. A.; Gopalan, Venkatraman; Schiffer, P.; Schlom, D. G.

Physics and Technology of High-k Materials 9. 3. ed. 2011. p. 283-292 (ECS Transactions; Vol. 41, No. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Adamo C, Misra R, Denev SA, SenGupta A, Mundy JA, Lee JH et al. Effect of strain and dimensionality on the properties of manganites. In Physics and Technology of High-k Materials 9. 3 ed. 2011. p. 283-292. (ECS Transactions; 3). https://doi.org/10.1149/1.3633045