Published 2013 | Version v1
Journal article Metadata-only

Analysis of chemical and external pressures in ReCoPO (Re = La, Pr) and LaCoAsO by means of μ+ spin spectroscopy

Creators

  • 1. Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden (Germany)
  • 2. CNISM, Parma (Italy)
  • 3. Dipartimento di Fisica, Universita di Parma (Italy)
  • 4. Dipartimento di Fisica, Universita dell'Aquila (Italy)
  • 5. SPIN-CNR, L'Aquila (Italy)
  • 6. Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut (Switzerland)
  • 7. Dipartimento di Fisica, Universita di Cagliari (Italy)
  • 8. National Physical Laboratory (CSIR), New Delhi (India)
  • 9. CNISM, Pavia (Italy)
  • 10. Dipartimento di Fisica, Universita di Pavia(Italy)

Description

In this contribution we discuss the local magnetic properties of ReCoPO (Re=La,Pr) as investigated by means of muon spin spectroscopy. Electrons localized on the Pr3+ ions do not play any role in the overall magnetic features of the compounds. The increase of the chemical pressure triggered by the different ionic radii of La3+ and Pr3+ plays a crucial role in enhancing the value of the critical temperature to the magnetic phase and can be mimicked by the application of external hydrostatic pressure. A sharp discontinuity in the local magnetic field at the muon site in LaCoPO suggests a sizeable modification in the band structure of the material upon increasing P. This scenario is qualitatively supported by ab-initio DFT calculations.

Additional details

Identifiers

URL
http://www.dpg-verhandlungen.de;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Regensburg 2013 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 48(3)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG Spring meeting of the condensed matter section (SKM) together with the divisions microprobes, radiation and medical physics and working groups industry and business, young DPG
Dates
10-15 Mar 2013
Place
Regensburg (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
46018171
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BAND THEORY; CHEMICAL COMPOSITION; COBALT ARSENIDES; COBALT OXIDES; COBALT PHOSPHIDES; CRITICAL TEMPERATURE; ELECTRONIC STRUCTURE; LANTHANUM OXIDES; LANTHANUM PHOSPHIDES; LOCALITY; MAGNETIC FIELDS; MAGNETIC PROPERTIES; PRASEODYMIUM OXIDES; PRASEODYMIUM PHOSPHIDES
Descriptors DEC
ARSENIC COMPOUNDS; ARSENIDES; CHALCOGENIDES; COBALT COMPOUNDS; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOSPHIDES; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; PNICTIDES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE

Optional Information

Notes
Session: TT 28.4 Di 10:15; No further information available