Room temperature optical anisotropy of a LaMnO3 thin-film induced by ultra-short pulse laser

Munkhbaatar, Purevdorj; Marton, Zsolt; Tsermaa, Bataarchuluun; Choi, Woo Seok; Seo, Sung Seok A.; Kim, Jin Seung; Nakagawa, Naoyuki; Hwang, H. Y.; Lee, Ho Nyung; Myung-Whun, Kim

doi:10.1063/1.4914094

Title: Room temperature optical anisotropy of a LaMnO₃ thin-film induced by ultra-short pulse laser

Journal Article · Wed Mar 04 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4914094· OSTI ID:1185810

Munkhbaatar, Purevdorj ^[1]; Marton, Zsolt ^[2]; Tsermaa, Bataarchuluun ^[1]; Choi, Woo Seok ^[3]; Seo, Sung Seok A. ^[4]; Kim, Jin Seung ^[1]; Nakagawa, Naoyuki ^[5]; Hwang, H. Y. ^[6]; Lee, Ho Nyung ^[2]; Myung-Whun, Kim ^[1]

Chonbuk National Univ., Jeonju (Korea, Republic of)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sungkyunkwan Univ., Suwon (Republic of Korea)
Univ. of Kentucky, Lexington, KY (United States)
Univ. of Tokyo (Japan)
Stanford Univ., CA (United States)

Ultra-short laser pulse induced optical anisotropy of LaMnO₃ thin films grown on SrTiO₃ substrates were observed by irradiation with a femto-second laser pulse with the fluence of less than 0.1 mJ/cm² at room temperature. The transmittance and reflectance showed different intensities for different polarization states of the probe pulse after pump pulse irradiation. The theoretical optical transmittance and re ectance that assumed an orbital ordering of the 3d eg electrons in Mn³⁺ ions resulted in an anisotropic time dependent changes similar to those obtained from the experimental results, suggesting that the photo-induced optical anisotropy of LaMnO₃ is a result of photo-induced symmetry breaking of the orbital ordering for an optically excited state.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1185810

Alternate ID(s):: OSTI ID: 1226717

Journal Information:: Applied Physics Letters, Vol. 106, Issue 9; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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References (18)

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