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

Abstract

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.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [1];  [1]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States); Karlsruhe Institute of Technology, Karlsruhe (Germany)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1560623
Report Number(s):
IS-J-10015
Journal ID: ISSN 1662-9779; SSP; TRN: US2000522
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Solid State Phenomena (Online)
Additional Journal Information:
Journal Name: Solid State Phenomena (Online); Journal Volume: 289; Journal ID: ISSN 1662-9779
Publisher:
Trans Tech Publications
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Antiferromagnetic State; Iron Based Superconductor; Nuclear Magnetic Resonance; Spin-Vortex Crystal

Citation Formats

Ding, Qing Ping, Meier, William R., Böhmer, Anna E., Budk'o, Sergey L., Canfield, Paul C., and Furukawa, Yuji. 75As NMR Studies of Magnetic Properties of the Magnetic Superconductor CaK(Fe0.967Ni0.033)4As4. United States: N. p., 2019. Web. doi:10.4028/www.scientific.net/SSP.289.148.
Ding, Qing Ping, Meier, William R., Böhmer, Anna E., Budk'o, Sergey L., Canfield, Paul C., & Furukawa, Yuji. 75As NMR Studies of Magnetic Properties of the Magnetic Superconductor CaK(Fe0.967Ni0.033)4As4. United States. https://doi.org/10.4028/www.scientific.net/SSP.289.148
Ding, Qing Ping, Meier, William R., Böhmer, Anna E., Budk'o, Sergey L., Canfield, Paul C., and Furukawa, Yuji. Mon . "75As NMR Studies of Magnetic Properties of the Magnetic Superconductor CaK(Fe0.967Ni0.033)4As4". United States. https://doi.org/10.4028/www.scientific.net/SSP.289.148. https://www.osti.gov/servlets/purl/1560623.
@article{osti_1560623,
title = {75As NMR Studies of Magnetic Properties of the Magnetic Superconductor CaK(Fe0.967Ni0.033)4As4},
author = {Ding, Qing Ping and Meier, William R. and Böhmer, Anna E. and Budk'o, Sergey L. and Canfield, Paul C. and Furukawa, Yuji},
abstractNote = {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.},
doi = {10.4028/www.scientific.net/SSP.289.148},
journal = {Solid State Phenomena (Online)},
number = ,
volume = 289,
place = {United States},
year = {Mon Apr 01 00:00:00 EDT 2019},
month = {Mon Apr 01 00:00:00 EDT 2019}
}

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