Published January 1, 2011 | Version v1
Journal article Metadata-only

Competing orders in underdoped (Ba1-xKx)Fe2As2

Creators

  • 1. National High Magnetic Field Laboratory, FSU, Tallahassee, FL 32306-4005 (United States)
  • 2. Instituto de fisica 'Gleb Wataghin', Unicamp, 13083-970, Campinas-Sao Paulo (Brazil)

Description

We report 75As Nuclear Magnetic Resonance (NMR) measurements in the high-Tc superconductor (Ba1-xKx)Fe2As2 in the underdoped regime. A structural transition at Ts ≅ 110 K is followed by an antiferromagnetic (AFM) order at TN ≅ 102 K for our x = 0.16 single crystal. Superconductivity (SC) also appears at Tc ≅ 20 K. We find that the ordered Fe moment (S) is reduced upon hole-doping. Both spectrum analysis and relaxation measurements indicate that pinned vortices are present below Tc and SC is coexisting with AFM fluctuations.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/273/1/012107

Additional details

Identifiers

DOI
10.1088/1742-6596/273/1/012107;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
273
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
International conference on strongly correlated electron systems
Acronym
SCES 2010
Dates
27 Jun - 2 Jul 2010
Place
Santa Fe, NM (United States)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43039668
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTIFERROMAGNETISM; ARSENIC 75; ARSENIC COMPOUNDS; BARIUM COMPOUNDS; FLUCTUATIONS; HIGH-TC SUPERCONDUCTORS; IRON COMPOUNDS; MONOCRYSTALS; NEEL TEMPERATURE; NUCLEAR MAGNETIC RESONANCE; POTASSIUM COMPOUNDS; RELAXATION; SPECTRA; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TRANSITION TEMPERATURE
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; ARSENIC ISOTOPES; CRYSTALS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MAGNETIC RESONANCE; MAGNETISM; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; PHYSICAL PROPERTIES; RADIOISOTOPES; RESONANCE; STABLE ISOTOPES; SUPERCONDUCTORS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; TYPE-II SUPERCONDUCTORS; VARIATIONS