Diverse Structural and Magnetic Properties of Differently Prepared MnAs Nanoparticles

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · ACS Nano

OSTI ID:1026764

Billinge, S J; Tian, P; Zhang, Y; Senevirathne, K; Brock, S L; Dixit, A; Lawes, G

Discrete nanoparticles of MnAs with distinct magnetostructural properties have been prepared by small modifications of solution-phase arrested precipitation reactions. Rietveld and X-ray atomic pair distribution function based approaches were used to explore the evolution of the structure of the samples with temperature, and these data were compared to the magnetic response measured with ac susceptibility. Relative to a bulk standard, one type of MnAs nanoparticles was found to demonstrate similar but smaller structural transitions and corresponding magnetic changes. However, both magnetic and structural transitions in the second type of nanoparticles are strongly suppressed.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1026764
• Report Number(s): BNL-95336-2011-JA; R&D Project: PO-011; KC0202010; TRN: US1105117
• Journal Information: ACS Nano, Vol. 5, Issue 4
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISTRIBUTION FUNCTIONS
MAGNETIC PROPERTIES
MANGANESE ARSENIDES
MODIFICATIONS
PRECIPITATION
MnAs
structure
magnetic
PDF
nanoparticle