Large orbital moments and internal magnetic fields in lithium nitridoferrate(I)

6533b823fe1ef96bd127e20b

RESEARCH PRODUCT

Large orbital moments and internal magnetic fields in lithium nitridoferrate(I)

Rainer Niewa Jens Klatyk Markus Waldeck F. Wagner Ruediger Kniep Philipp Gütlich Vadim Ksenofontov Walter Schnelle P. Novak

subject

Physics Condensed Matter::Materials Science Magnetization Condensed matter physics Magnetic moment Ferromagnetism Spin polarization General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Spin (physics)Hyperfine structure Electron magnetic dipole moment Spin magnetic moment

description

The iron nitridometalates Li2[(Li(1-x)Fe(I)(x))N] display ferromagnetic ordering and spin freezing. Large magnetic moments up to 5.0mu(B)/Fe are found in the magnetization. In Mössbauer effect studies huge hyperfine magnetic fields up to 696 kOe are observed at specific Fe sites. These extraordinary fields and moments originate in an unusual ligand field splitting for those Fe species leading [within local spin density approximation (LSDA)] to a localized orbitally degenerate doublet. Including spin-orbit interaction and strong intra-atomic electron correlation (LDA+SO+U) gives rise to a large orbital momentum.

year	journal	country	edition	language
2002-05-01

http://www.scopus.com/inward/record.url?eid=2-s2.0-0037141318&partnerID=MN8TOARS

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