Measuring magnetic field texture in correlated electron systems under extreme conditions

King Yau Yip, Kin On Ho, King Yiu Yu, Yang Chen, Wei Zhang, S. Kasahara, Y. Mizukami, T. Shibauchi, Y. Matsuda, Swee K. Goh, Sen Yang

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Pressure is a clean, continuous, and systematic tuning parameter among the competing ground states in strongly correlated electron systems such as superconductivity and magnetism. However, owing to the restricted access to samples enclosed in high-pressure devices, compatible magnetic field sensors with sufficient sensitivity are rare. We used nitrogen vacancy centers in diamond as a spatially resolved vector field sensor for material research under pressure at cryogenic temperatures. Using a single crystal of BaFe2(As0.59P0.41)2 as a benchmark, we extracted the superconducting transition temperature, the local magnetic field profile in the Meissner state, and the critical fields. The method developed in this work offers a distinct tool for probing and understanding a range of quantum many-body systems.

Original languageEnglish
Pages (from-to)1355-1359
Number of pages5
JournalScience
Volume366
Issue number6471
DOIs
Publication statusPublished - Dec 13 2019
Externally publishedYes

ASJC Scopus subject areas

  • General

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