Epitaxial stabilization of ultra thin films of electron doped manganites

S. Middey; M. Kareev; D. Meyers; X. Liu; Y. Cao; S. Tripathi; D. Yazici; M. B. Maple; P. J. Ryan; J. W. Freeland; J. Chakhalian

doi:10.1063/1.4879456

Epitaxial stabilization of ultra thin films of electron doped manganites

S. Middey
, M. Kareev
, D. Meyers
, X. Liu
, Y. Cao
, S. Tripathi
, D. Yazici
, M. B. Maple
, P. J. Ryan
, J. W. Freeland
, J. Chakhalian

School of Arts and Sciences, New High Energy Theory Center

Rutgers, The State University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Ultra-thin films of the electron doped manganite La_0.8Ce _0.2MnO₃ were grown in a layer-by-layer growth mode on SrTiO₃ (001) substrates by pulsed laser interval deposition. High structural quality and surface morphology were confirmed by a combination of synchrotron based x-ray diffraction and atomic force microscopy. Resonant X-ray absorption spectroscopy measurements confirm the presence of Ce⁴⁺ and Mn²⁺ ions. In addition, the electron doping signature was corroborated by Hall effect measurements. All grown films show a ferromagnetic ground state as revealed by both dc magnetization and x-ray magnetic circular dichroism measurements and remain insulating contrary to earlier reports of a metal-insulator transition. Our results hint at the possibility of electron-hole asymmetry in the colossal magnetoresistive manganite phase diagram akin to the high-T_c cuprates.

Original language	American English
Article number	202409
Journal	Applied Physics Letters
Volume	104
Issue number	20
DOIs	https://doi.org/10.1063/1.4879456
State	Published - May 19 2014

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4879456

Cite this

@article{8f62950f67af41dd801802ab0cc1722e,

title = "Epitaxial stabilization of ultra thin films of electron doped manganites",

abstract = "Ultra-thin films of the electron doped manganite La0.8Ce 0.2MnO3 were grown in a layer-by-layer growth mode on SrTiO3 (001) substrates by pulsed laser interval deposition. High structural quality and surface morphology were confirmed by a combination of synchrotron based x-ray diffraction and atomic force microscopy. Resonant X-ray absorption spectroscopy measurements confirm the presence of Ce4+ and Mn2+ ions. In addition, the electron doping signature was corroborated by Hall effect measurements. All grown films show a ferromagnetic ground state as revealed by both dc magnetization and x-ray magnetic circular dichroism measurements and remain insulating contrary to earlier reports of a metal-insulator transition. Our results hint at the possibility of electron-hole asymmetry in the colossal magnetoresistive manganite phase diagram akin to the high-Tc cuprates.",

author = "S. Middey and M. Kareev and D. Meyers and X. Liu and Y. Cao and S. Tripathi and D. Yazici and Maple, \{M. B.\} and Ryan, \{P. J.\} and Freeland, \{J. W.\} and J. Chakhalian",

year = "2014",

month = may,

day = "19",

doi = "10.1063/1.4879456",

language = "American English",

volume = "104",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "20",

}

TY - JOUR

T1 - Epitaxial stabilization of ultra thin films of electron doped manganites

AU - Middey, S.

AU - Kareev, M.

AU - Meyers, D.

AU - Liu, X.

AU - Cao, Y.

AU - Tripathi, S.

AU - Yazici, D.

AU - Maple, M. B.

AU - Ryan, P. J.

AU - Freeland, J. W.

AU - Chakhalian, J.

PY - 2014/5/19

Y1 - 2014/5/19

N2 - Ultra-thin films of the electron doped manganite La0.8Ce 0.2MnO3 were grown in a layer-by-layer growth mode on SrTiO3 (001) substrates by pulsed laser interval deposition. High structural quality and surface morphology were confirmed by a combination of synchrotron based x-ray diffraction and atomic force microscopy. Resonant X-ray absorption spectroscopy measurements confirm the presence of Ce4+ and Mn2+ ions. In addition, the electron doping signature was corroborated by Hall effect measurements. All grown films show a ferromagnetic ground state as revealed by both dc magnetization and x-ray magnetic circular dichroism measurements and remain insulating contrary to earlier reports of a metal-insulator transition. Our results hint at the possibility of electron-hole asymmetry in the colossal magnetoresistive manganite phase diagram akin to the high-Tc cuprates.

AB - Ultra-thin films of the electron doped manganite La0.8Ce 0.2MnO3 were grown in a layer-by-layer growth mode on SrTiO3 (001) substrates by pulsed laser interval deposition. High structural quality and surface morphology were confirmed by a combination of synchrotron based x-ray diffraction and atomic force microscopy. Resonant X-ray absorption spectroscopy measurements confirm the presence of Ce4+ and Mn2+ ions. In addition, the electron doping signature was corroborated by Hall effect measurements. All grown films show a ferromagnetic ground state as revealed by both dc magnetization and x-ray magnetic circular dichroism measurements and remain insulating contrary to earlier reports of a metal-insulator transition. Our results hint at the possibility of electron-hole asymmetry in the colossal magnetoresistive manganite phase diagram akin to the high-Tc cuprates.

UR - https://www.scopus.com/pages/publications/84901406019

UR - https://www.scopus.com/pages/publications/84901406019#tab=citedBy

U2 - 10.1063/1.4879456

DO - 10.1063/1.4879456

M3 - Article

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

M1 - 202409

ER -

Epitaxial stabilization of ultra thin films of electron doped manganites

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this