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94 771 (0,34s)

Result

Magnetic interactions in disordered perovskite PbFe1/2Nb1/2O3 and related compounds: dominance of nearest-neighbor interaction

From theoretical calculations and modeling the main magnetic interactions were determined in Pb(Fe1/2Nb1/2)O3 and related compounds. It was shown dominance of nearest-neighbor interaction. The relatively h...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
Result

93Nb NMR and Fe3+ EPR study of local magnetic properties of magnetoelectric Pb(Fe1/2Nb1/2)O3.

The 93Nb NMR and Fe3+ EPR spectra of a magnetoelectric Pb(Fe1/2Nb1/2)O3 (PFN) single crystal as well as of PFN ceramics and nanopowder have been measured. The relation between the chemical disorder and the...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Effect of Ba and Ti doping on magnetic properties of multiferroic Pb(Fe1/2Nb1/2)O3.

On the basis of extensive experimental studies of Pb1-xBax(Fe1/2Nb1/2)O3 (PFN-BFN) and Pb(Fe1/2Nb1/2)1-xTixO3 (PFN-PT) single crystals by several experimental methods, novel phas...

BM - Fyzika pevných látek a magnetismus

  • 2013
  • Jx
  • Link
Result

17O and 93Nb NMR investigation of magnetoelectric effect in Pb(Fe1/2 Nb1/2)O3./sub

The 17O and 93Nb quadrupole perturbed NMR spectra of multiferroic Pb(Fe1/2Nb1/2)O3 have been measured. The results show that the ordering at TN = 143 K is antiferromagnetic with spin canting and that there...

BM - Fyzika pevných látek a magnetismus

  • 2008
  • Jx
Result

Lattice dynamics and broad-band dielectric properties of multiferroic Pb(Fe1/2Nb1/2)O3 ceramics

Complex dielectric properties of Pb(Fe1/2Nb1/2)O3 ceramics were investigated in a broad frequency range from 100 Hz up to 90 THz. A dielectric relaxation, which appears in THz region below 700 K, slows dow...

BM - Fyzika pevných látek a magnetismus

  • 2015
  • Jx
  • Link
Result

Raman study of 0.62Pb(Fe1/2Nb1/2)O3?0.38PbTiO3 single crystal

Polarized Raman scattering microscopy investigations of tetragonal single crystal of PFN-38PT allowed us to characterize the Raman signature of distinct ferroelastic domains. The analysis of the incident and scattered light polarization allowed us to...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
Result

Room-temperature paramagnetoelectric effect in magnetoelectric multiferroics Pb(Fe1/2Nb1/2)O3 and its solid solution with PbTiO3

Magnetoelectric response at room temperature and above in high-resistive ceramics made of multiferroic Pb(Fe1/2Nb1/2)O3 (PFN) and PFN-based solid solution 0.91PFN – 0.09PbTiO3 have been observed. The theor...

BM - Fyzika pevných látek a magnetismus

  • 2016
  • Jx
  • Link
Result

Details of magnetic properties in Pb(Fe1/2Nb1/2)O3./sub

For Pb(Fe0:5Nb0:5)O3 the $magnetization measurements up to 70 kOe were performed with the aim to estimate the antiferromagnetic (AFM) and superantiferromagnetic (SAF) contribution to $magnetization. Below TN the increase of$magnetiz...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • D
  • Link
Result

Comparative studies of ferroelectric and magnetic phase transitions in Pb(Fe1/2Nb1/2)O3-PbMO3 (M-Ti, Zr) multiferroic solid solutions

Structural, dielectric, magnetization, and Mossbauer studies of (1-x)PbFe1/2Nb1/2O3-xPbZrO3 system, where the symmetry remains rhombohedral, while the lattice parameter increases with x are carried out. The magnetic x,T-phase diagram of thes...

BM - Fyzika pevných látek a magnetismus

  • 2015
  • Jx
  • Link
Result

Magnetoelectric effect in antiferromagnetic multiferroic Pb(Fe1/2 N b1/2)O3 and its solid solutions with PbTi O3

(ME) effect in single crystals and highly resistive ceramics of Pb(Fe1/2Nb1/2)O3 (PFN) and (1-x)Pb(Fe1/2Nb1/2)O3-xPbTiO3(PFN-xPT). We are interested primarily....

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2017
  • JSC
  • Link
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