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Title: Orientation-resolved domain mapping in tetragonal SrTiO 3 using polarized Raman spectroscopy

Journal Article · · Physical Review B
 [1];  [1];  [2];  [3];  [1]
  1. Stanford Univ., Stanford, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)

Here, we present microscopically resolved, polarized spectroscopy of Raman scattering collected from tetragonal SrTiO3. The anisotropic response of first-order Raman peaks within a single tetragonal domain has been measured. From these data, we assign symmetries to the phonons seen in the first-order Raman spectrum which is normally complicated by uncontrolled domain structure. Using a translation stage, we map the local domain orientation of a 3–μm3 crystal volume near the laser focus and compare it to wide-field polarized images. This technique can be performed with readily available instruments and is relevant to the study of a wide range of related materials, interfaces, and devices.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
N66001-11-1-4106; AC02-76SF00515; DGE-114747
OSTI ID:
1361076
Alternate ID(s):
OSTI ID: 1336852
Journal Information:
Physical Review B, Vol. 94, Issue 21; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (3)

Carrier density and disorder tuned superconductor-metal transition in a two-dimensional electron system journal October 2018
Physics of SrTiO 3 -based heterostructures and nanostructures: a review journal February 2018
Physics of SrTiO$_3$-based heterostructures and nanostructures: a review text January 2017