publication . Article . Preprint . 2016

Assessing electron beam sensitivity for SrTiO3 and La0.7Sr0.3MnO3 using electron energy loss spectroscopy

Nord, Magnus; Vullum, Per Erik; Hallsteinsen, Ingrid; Tybell, Thomas; Holmestad, Randi;
Open Access English
  • Published: 28 Aug 2016
  • Publisher: Elsevier
Abstract
Thresholds for beam damage have been assessed for La$_{0.7}$Sr$_{0.3}$MnO$_3$ and SrTiO$_3$ as a function of electron probe current and exposure time at 80 and 200 kV acceleration voltage. The materials were exposed to an intense electron probe by aberration corrected scanning transmission electron microscopy (STEM) with simultaneous acquisition of electron energy loss spectroscopy (EELS) data. Electron beam damage was identified by changes of the core loss fine structure after quantification by a refined and improved model based approach. At 200 kV acceleration voltage, damage in SrTiO$_3$ was identified by changes both in the EEL fine structure and by contrast...
Subjects
mesheuropmc: sense organs
free text keywords: Condensed Matter - Materials Science
33 references, page 1 of 3

[1] J. Mannhart, D. G. Schlom, Oxide Interfaces{An Opportunity for Electronics, Science 327 (5973). doi:10.1126/science.1181862.

[2] G. Hammerl, N. Spaldin, Shedding Light on Oxide Interfaces, Science 332 (6032). doi:10.1126/science.1206247.

[3] L. W. Martin, Y.-H. Chu, R. Ramesh, Advances in the growth and characterization of magnetic, ferroelectric, and multiferroic oxide thin lms,

[4] E. Dagotto, T. Hotta, A. Moreo, Colossal magnetoresistant materials: the key role of phase separation, Physics Reports 344 (1). doi:10.1016/ S0370-1573(00)00121-6.

[5] J.-S. Lee, D. A. Arena, T. S. Santos, C. S. Nelson, S. I. Hyun, J. H. Shim, C.-C. Kao, Controlling competing interactions at oxide interfaces: Enhanced anisotropy in La 0.7 Sr 0.3 MnO 3 lms via interface engineering, Physical Review B 85 (23). doi:10.1103/PhysRevB.85.235125.

[6] M. D. Biegalski, L. Qiao, Y. Gu, A. Mehta, Q. He, Y. Takamura, A. Borisevich, L.-Q. Chen, Impact of symmetry on the ferroelectric properties of CaTiO3 thin lms, Applied Physics Letters 106 (16). doi:10.1063/1. 4918805.

[7] Q. He, R. Ishikawa, A. R. Lupini, L. Qiao, E. J. Moon, O. Ovchinnikov, S. J. May, M. D. Biegalski, A. Y. Borisevich, Towards 3d Mapping of BO6 Octahedron Rotations at Perovskite Heterointerfaces, Unit Cell by Unit Cell, ACS Nanodoi:10.1021/acsnano.5b03232.

[8] J. Gazquez, S. Bose, M. Sharma, M. A. Torija, S. J. Pennycook, C. Leighton, M. Varela, Lattice mismatch accommodation via oxygen vacancy ordering in epitaxial La0.5Sr0.5CoO3- thin lms, APL Materials 1 (1). doi:10.1063/1.4809547.

[9] M. Basletic, J.-L. Maurice, C. Carretero, G. Herranz, O. Copie, M. Bibes, E. Jacquet, K. Bouzehouane, S. Fusil, A. Barthelemy, Mapping the spatial distribution of charge carriers in LaAlO3/SrTiO3 heterostructures, Nature Materials 7 (8). doi:10.1038/nmat2223.

[10] S. I. Khartsev, P. Johnsson, A. M. Grishin, Colossal magnetoresistance in ultrathin epitaxial La0.75Sr0.25MnO3 lms, Journal of Applied Physics 87 (5). doi:10.1063/1.372191.

[11] I. Hallsteinsen, J. E. Boschker, M. Nord, S. Lee, M. Rzchowski, P. E. Vullum, J. K. Grepstad, R. Holmestad, C. B. Eom, T. Tybell, Surface stability of epitaxial La0.7Sr0.3Mno3 thin lms on (111)-oriented SrTiO3, Journal of Applied Physics 113 (18). doi:10.1063/1.4804312.

[12] K. J. O'Shea, D. A. MacLaren, D. McGrouther, D. Schwarzbach, M. Jungbauer, S. Huhn, V. Moshnyaga, R. L. Stamps, Nanoscale Mapping of the Magnetic Properties of (111)-Oriented La 0.67 Sr 0.33 MnO 3, Nano Lettersdoi:10.1021/acs.nanolett.5b01953.

[13] H. Tan, S. Turner, E. Ycelen, J. Verbeeck, G. Van Tendeloo, 2d Atomic Mapping of Oxidation States in Transition Metal Oxides by Scanning Transmission Electron Microscopy and Electron Energy-Loss Spectroscopy, Physical Review Letters 107 (10). doi:10.1103/PhysRevLett. 107.107602.

[14] K. Kimoto, T. Asaka, T. Nagai, M. Saito, Y. Matsui, K. Ishizuka, Elementselective imaging of atomic columns in a crystal using STEM and EELS, Nature 450 (7170). doi:10.1038/nature06352.

[15] N. Nakagawa, H. Y. Hwang, D. A. Muller, Why some interfaces cannot be sharp, Nature Materials 5 (3). doi:10.1038/nmat1569.

33 references, page 1 of 3
Related research
Abstract
Thresholds for beam damage have been assessed for La$_{0.7}$Sr$_{0.3}$MnO$_3$ and SrTiO$_3$ as a function of electron probe current and exposure time at 80 and 200 kV acceleration voltage. The materials were exposed to an intense electron probe by aberration corrected scanning transmission electron microscopy (STEM) with simultaneous acquisition of electron energy loss spectroscopy (EELS) data. Electron beam damage was identified by changes of the core loss fine structure after quantification by a refined and improved model based approach. At 200 kV acceleration voltage, damage in SrTiO$_3$ was identified by changes both in the EEL fine structure and by contrast...
Subjects
mesheuropmc: sense organs
free text keywords: Condensed Matter - Materials Science
33 references, page 1 of 3

[1] J. Mannhart, D. G. Schlom, Oxide Interfaces{An Opportunity for Electronics, Science 327 (5973). doi:10.1126/science.1181862.

[2] G. Hammerl, N. Spaldin, Shedding Light on Oxide Interfaces, Science 332 (6032). doi:10.1126/science.1206247.

[3] L. W. Martin, Y.-H. Chu, R. Ramesh, Advances in the growth and characterization of magnetic, ferroelectric, and multiferroic oxide thin lms,

[4] E. Dagotto, T. Hotta, A. Moreo, Colossal magnetoresistant materials: the key role of phase separation, Physics Reports 344 (1). doi:10.1016/ S0370-1573(00)00121-6.

[5] J.-S. Lee, D. A. Arena, T. S. Santos, C. S. Nelson, S. I. Hyun, J. H. Shim, C.-C. Kao, Controlling competing interactions at oxide interfaces: Enhanced anisotropy in La 0.7 Sr 0.3 MnO 3 lms via interface engineering, Physical Review B 85 (23). doi:10.1103/PhysRevB.85.235125.

[6] M. D. Biegalski, L. Qiao, Y. Gu, A. Mehta, Q. He, Y. Takamura, A. Borisevich, L.-Q. Chen, Impact of symmetry on the ferroelectric properties of CaTiO3 thin lms, Applied Physics Letters 106 (16). doi:10.1063/1. 4918805.

[7] Q. He, R. Ishikawa, A. R. Lupini, L. Qiao, E. J. Moon, O. Ovchinnikov, S. J. May, M. D. Biegalski, A. Y. Borisevich, Towards 3d Mapping of BO6 Octahedron Rotations at Perovskite Heterointerfaces, Unit Cell by Unit Cell, ACS Nanodoi:10.1021/acsnano.5b03232.

[8] J. Gazquez, S. Bose, M. Sharma, M. A. Torija, S. J. Pennycook, C. Leighton, M. Varela, Lattice mismatch accommodation via oxygen vacancy ordering in epitaxial La0.5Sr0.5CoO3- thin lms, APL Materials 1 (1). doi:10.1063/1.4809547.

[9] M. Basletic, J.-L. Maurice, C. Carretero, G. Herranz, O. Copie, M. Bibes, E. Jacquet, K. Bouzehouane, S. Fusil, A. Barthelemy, Mapping the spatial distribution of charge carriers in LaAlO3/SrTiO3 heterostructures, Nature Materials 7 (8). doi:10.1038/nmat2223.

[10] S. I. Khartsev, P. Johnsson, A. M. Grishin, Colossal magnetoresistance in ultrathin epitaxial La0.75Sr0.25MnO3 lms, Journal of Applied Physics 87 (5). doi:10.1063/1.372191.

[11] I. Hallsteinsen, J. E. Boschker, M. Nord, S. Lee, M. Rzchowski, P. E. Vullum, J. K. Grepstad, R. Holmestad, C. B. Eom, T. Tybell, Surface stability of epitaxial La0.7Sr0.3Mno3 thin lms on (111)-oriented SrTiO3, Journal of Applied Physics 113 (18). doi:10.1063/1.4804312.

[12] K. J. O'Shea, D. A. MacLaren, D. McGrouther, D. Schwarzbach, M. Jungbauer, S. Huhn, V. Moshnyaga, R. L. Stamps, Nanoscale Mapping of the Magnetic Properties of (111)-Oriented La 0.67 Sr 0.33 MnO 3, Nano Lettersdoi:10.1021/acs.nanolett.5b01953.

[13] H. Tan, S. Turner, E. Ycelen, J. Verbeeck, G. Van Tendeloo, 2d Atomic Mapping of Oxidation States in Transition Metal Oxides by Scanning Transmission Electron Microscopy and Electron Energy-Loss Spectroscopy, Physical Review Letters 107 (10). doi:10.1103/PhysRevLett. 107.107602.

[14] K. Kimoto, T. Asaka, T. Nagai, M. Saito, Y. Matsui, K. Ishizuka, Elementselective imaging of atomic columns in a crystal using STEM and EELS, Nature 450 (7170). doi:10.1038/nature06352.

[15] N. Nakagawa, H. Y. Hwang, D. A. Muller, Why some interfaces cannot be sharp, Nature Materials 5 (3). doi:10.1038/nmat1569.

33 references, page 1 of 3
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publication . Article . Preprint . 2016

Assessing electron beam sensitivity for SrTiO3 and La0.7Sr0.3MnO3 using electron energy loss spectroscopy

Nord, Magnus; Vullum, Per Erik; Hallsteinsen, Ingrid; Tybell, Thomas; Holmestad, Randi;