Published 2019 | Version v1
Journal article Metadata-only

75As NMR Studies of Magnetic Properties of the Magnetic Superconductor CaK(Fe0.967Ni0.033)4As4

Creators

  • 1. Ames Laboratory and Iowa State University, Ames, IA (United States)
  • 2. Karlsruhe Institute of Technology, Karlsruhe (Germany)

Description

We have carried out 75As nuclear magnetic resonance (NMR) measurements to investigate a new antiferromagnetic (AFM) state, the so-called hedgehog spin-vortex crystal (SVC) in CaK(Fe0.967Ni0.033)4As4. Here, the hedgehog SVC order is clearly demonstrated by the direct observation of internal magnetic induction along the c axis at the As1 site (close to K) and a zero net internal magnetic induction at the As2 site (close to Ca) below an AFM ordering temperature of TN~ 45 K. In the superconducting (SC) state, the NMR signal intensity decreases suddenly just below Tc~ 20 K due to Meissner effect, evidencing the coexistence of the hedgehog SVC AFM and SC states from a microscopic point of view.

Availability note (English)

Available from https://www.osti.gov/servlets/purl/1560623; https://www.osti.gov/biblio/1560623; DOE Accepted Manuscript full text, or the publishers Best Available Version will be available free of charge after the embargo period

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/1560623; https://www.osti.gov/biblio/1560623;
DOI
10.4028/www.scientific.net/SSP.289.148;
arXiv
arXiv:1904.08016;

Publishing Information

Journal Title
Solid State Phenomena (Online)
Journal Volume
289
Journal Page Range
p. 148-155
ISSN
1662-9779

INIS

Country of Publication
Switzerland
Country of Input or Organization
United States
INIS RN
52110767
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; ARSENIC 75; ATOMIC FORCE MICROSCOPY; MAGNETIC PROPERTIES; MAGNETIZATION; NUCLEAR MAGNETIC RESONANCE; SUPERCONDUCTORS
Descriptors DEC
ARSENIC ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MAGNETIC RESONANCE; MAGNETISM; MICROSCOPY; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; PHYSICAL PROPERTIES; RADIOISOTOPES; RESONANCE; STABLE ISOTOPES

Optional Information

Contract/Grant/Project number
AC02-07CH11358
Funding organization
USDOE (United States)
Secondary number(s)
OSTIID--1560623