skip to main content

SciTech ConnectSciTech Connect

Title: Research Update: Magnetic phase diagram of EuTi{sub 1−x}B{sub x}O{sub 3} (B = Zr, Nb)

We report the magnetic phase diagram of EuTi{sub 1−x}B{sub x}O{sub 3} (B = Zr, Nb), determined from magnetization and heat capacity measurements. Upon Zr-doping, the antiferromagnetic ordering temperature T{sub N} of EuTi{sub 1−x}Zr{sub x}O{sub 3} gradually decreases from 5.6 K (x = 0) to 4.1 K (x = 1). Whereas a similar decrease in T{sub N} is observed for small amounts of Nb doping (x ≤ 0.05), ferromagnetism is induced in EuTi{sub 1−x}Nb{sub x}O{sub 3} with x > 0.05. The ferromagnetic interaction between localized Eu 4f spins mediated by itinerant electrons introduced by Nb doping results in the ferromagnetism in EuTi{sub 1−x}Nb{sub x}O{sub 3}.
Authors:
;  [1] ;  [2] ; ;  [1] ;  [3]
  1. Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996 (United States)
  2. Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22415218
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL materials; Journal Volume: 2; Journal Issue: 11; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETISM; CONCENTRATION RATIO; ELECTRONS; EUROPIUM COMPOUNDS; FERROMAGNETISM; MAGNETIZATION; NIOBATES; PHASE DIAGRAMS; SPECIFIC HEAT; SPIN; TITANIUM COMPOUNDS; ZIRCONATES