English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Persistent antiferromagnetic order in heavily overdoped Ca1-xLaxFeAs2

Martino, E., Bachmann, M., Rossi, L., Modic, K. A., Zivkovic, I., Ronnow, H. M., et al. (2019). Persistent antiferromagnetic order in heavily overdoped Ca1-xLaxFeAs2. Journal of Physics: Condensed Matter, 31(48): 485705, pp. 1-6. doi:10.1088/1361-648X/ab3b43.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-BD1A-B Version Permalink: http://hdl.handle.net/21.11116/0000-0004-BD1C-9
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Martino, Edoardo1, Author              
Bachmann, Maja1, Author              
Rossi, Lidia2, Author
Modic, Kimberly A.1, Author              
Zivkovic, Ivica2, Author
Ronnow, Henrik M.2, Author
Moll, Philip J. W.1, Author              
Akrap, Ana2, Author
Forro, Laszlo2, Author
Katrych, Sergiy2, Author
Affiliations:
1Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              
2External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: In the Ca1-xLaxFeAs2 (1 1 2) family of pnictide superconductors, we have investigated a highly overdoped composition (x = 0.56), prepared by a high-pressure, high-temperature synthesis. Magnetic measurements show an antiferromagnetic transition at T-N = 120 K, well above the one at lower doping (0.15 < x < 0.27). Below the onset of long-range magnetic order at T-N, the electrical resistivity is strongly reduced and is dominated by electron-electron interactions, as evident from its temperature dependence. The Seebeck coefficient shows a clear metallic behavior as in narrow band conductors. The temperature dependence of the Hall coefficient and the violation of Kohler's rule agree with the multiband character of the material. No superconductivity was observed down to 1.8 K. The success of the high-pressure synthesis encourages further investigations of the so far only partially explored phase diagram in this family of Iron-based high temperature superconductors.

Details

show
hide
Language(s): eng - English
 Dates: 2019-09-032019-09-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000484241700001
DOI: 10.1088/1361-648X/ab3b43
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Physics: Condensed Matter
  Abbreviation : J. Phys. Condens. Matter.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 31 (48) Sequence Number: 485705 Start / End Page: 1 - 6 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478