Effect of anisotropic strain on the charge dynamics of Nd 0.5Sr 0.5MnO 3 thin films

P. Munkhbaatar; N. Nakagawa; H. Y. Hwang; J. S. Kim; K. Myung-Whun

doi:10.1016/j.ssc.2012.05.028

Effect of anisotropic strain on the charge dynamics of Nd _0.5Sr _0.5MnO ₃ thin films

P. Munkhbaatar
, N. Nakagawa
, H. Y. Hwang
, J. S. Kim
, K. Myung-Whun^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

1 Scopus citations

Abstract

We report the transmittance (T) and the pump-probe transmittance change (ΔT) of Nd _0.5Sr _0.5MnO ₃ (NSMO) thin films grown on SrTiO ₃(STO)(100) and STO(110) substrates in 1.3-1.7 eV range at room temperature. The strain of NSMO was isotropic on STO(100) and anisotropic on STO(110). Both T and ΔT showed no polarization dependence in NSMO/STO(100) but the intensity of T and ΔT was anisotropic in NSMO/STO(110). Also ΔT showed sharp exponential decay with increasing time delay between the pump and probe pulse. The short time decay behaviour (≲0.3ps) showed no significant polarization direction and substrate dependence, which indicates that the carrier-carrier scattering rate is not sensitive to the strain state in NSMO.

Original language	English
Pages (from-to)	1541-1544
Number of pages	4
Journal	Solid State Communications
Volume	152
Issue number	16
DOIs	https://doi.org/10.1016/j.ssc.2012.05.028
State	Published - 2012.08

Keywords

A. Nd Sr MnO thin film
D. Anistropic strain
E. Pump-probe measurement

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Chemistry
Physics & Astronomy

Access to Document

10.1016/j.ssc.2012.05.028

Cite this

@article{2740407b14ce43f1959f5d3b21adb68a,

title = "Effect of anisotropic strain on the charge dynamics of Nd 0.5Sr 0.5MnO 3 thin films",

abstract = "We report the transmittance (T) and the pump-probe transmittance change (ΔT) of Nd 0.5Sr 0.5MnO 3 (NSMO) thin films grown on SrTiO 3(STO)(100) and STO(110) substrates in 1.3-1.7 eV range at room temperature. The strain of NSMO was isotropic on STO(100) and anisotropic on STO(110). Both T and ΔT showed no polarization dependence in NSMO/STO(100) but the intensity of T and ΔT was anisotropic in NSMO/STO(110). Also ΔT showed sharp exponential decay with increasing time delay between the pump and probe pulse. The short time decay behaviour (≲0.3ps) showed no significant polarization direction and substrate dependence, which indicates that the carrier-carrier scattering rate is not sensitive to the strain state in NSMO.",

keywords = "A. Nd Sr MnO thin film, D. Anistropic strain, E. Pump-probe measurement",

author = "P. Munkhbaatar and N. Nakagawa and Hwang, \{H. Y.\} and Kim, \{J. S.\} and K. Myung-Whun",

year = "2012",

month = aug,

doi = "10.1016/j.ssc.2012.05.028",

language = "English",

volume = "152",

pages = "1541--1544",

journal = "Solid State Communications",

issn = "0038-1098",

number = "16",

}

TY - JOUR

T1 - Effect of anisotropic strain on the charge dynamics of Nd 0.5Sr 0.5MnO 3 thin films

AU - Munkhbaatar, P.

AU - Nakagawa, N.

AU - Hwang, H. Y.

AU - Kim, J. S.

AU - Myung-Whun, K.

PY - 2012/8

Y1 - 2012/8

N2 - We report the transmittance (T) and the pump-probe transmittance change (ΔT) of Nd 0.5Sr 0.5MnO 3 (NSMO) thin films grown on SrTiO 3(STO)(100) and STO(110) substrates in 1.3-1.7 eV range at room temperature. The strain of NSMO was isotropic on STO(100) and anisotropic on STO(110). Both T and ΔT showed no polarization dependence in NSMO/STO(100) but the intensity of T and ΔT was anisotropic in NSMO/STO(110). Also ΔT showed sharp exponential decay with increasing time delay between the pump and probe pulse. The short time decay behaviour (≲0.3ps) showed no significant polarization direction and substrate dependence, which indicates that the carrier-carrier scattering rate is not sensitive to the strain state in NSMO.

AB - We report the transmittance (T) and the pump-probe transmittance change (ΔT) of Nd 0.5Sr 0.5MnO 3 (NSMO) thin films grown on SrTiO 3(STO)(100) and STO(110) substrates in 1.3-1.7 eV range at room temperature. The strain of NSMO was isotropic on STO(100) and anisotropic on STO(110). Both T and ΔT showed no polarization dependence in NSMO/STO(100) but the intensity of T and ΔT was anisotropic in NSMO/STO(110). Also ΔT showed sharp exponential decay with increasing time delay between the pump and probe pulse. The short time decay behaviour (≲0.3ps) showed no significant polarization direction and substrate dependence, which indicates that the carrier-carrier scattering rate is not sensitive to the strain state in NSMO.

KW - A. Nd Sr MnO thin film

KW - D. Anistropic strain

KW - E. Pump-probe measurement

UR - https://www.scopus.com/pages/publications/84863987622

U2 - 10.1016/j.ssc.2012.05.028

DO - 10.1016/j.ssc.2012.05.028

M3 - Journal article

AN - SCOPUS:84863987622

SN - 0038-1098

VL - 152

SP - 1541

EP - 1544

JO - Solid State Communications

JF - Solid State Communications

IS - 16

ER -