Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Nov 27;8:17431. doi: 10.1038/s41598-018-34894-7

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Evaluation of scanning acquisition method via spatial imaging measured from a high-T_c superconducting cuprate Bi₂Sr₂CaCu₂O_8+δ taken with a photon energy of 6.43 eV and a temperature below 20 K near the nodal direction. (a,b) Two dimensional spatial imaging of ARPES intensity of Bi2212 by (a) the stepping method and (b) the scanning method, where the full integration windows in energy and momentum were employed to the nodal ARPES spectra similar to Fig. 3(d4). (c,d) Schematic drawings illustrate the motion control in the stepping and scanning method, respectively. Each arrow represents the motion control in one action. Note that unidirectional and bidirectional acquisitions were also employed as indicated by the solid lines. The ARPES acquisitions have been stopped in the regions indicated by the dashed lines. In the scanning mode, the sample positions were finely tuned at both arrow edges several times by reflecting feedbacks of the encoder to reduce errors due to backlash.