Abstract
Optical conductivity spectra of ferromagnetic pyrochlore vanadate Yb2 V2 O7 were investigated under a variation of both temperature and magnetic field. It was found that the spectrum of a Mott-gap excitation, a d - d transition between neighboring V sites, exhibits spectral weight transfer to lower energies with ferromagnetic ordering as well as an applied magnetic field. This result indicates that charge dynamics is influenced by the spin state in this prototypical orbital-spin-coupled system.
| Original language | English |
|---|---|
| Article number | 024402 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 74 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Spin-dependent charge dynamics of an orbital-spin-coupled system : Yb2 V2 O7. / Waku, K.; Suzuki, T.; Katsufuji, Takuro.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 74, No. 2, 024402, 2006.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spin-dependent charge dynamics of an orbital-spin-coupled system
T2 - Yb2 V2 O7
AU - Waku, K.
AU - Suzuki, T.
AU - Katsufuji, Takuro
PY - 2006
Y1 - 2006
N2 - Optical conductivity spectra of ferromagnetic pyrochlore vanadate Yb2 V2 O7 were investigated under a variation of both temperature and magnetic field. It was found that the spectrum of a Mott-gap excitation, a d - d transition between neighboring V sites, exhibits spectral weight transfer to lower energies with ferromagnetic ordering as well as an applied magnetic field. This result indicates that charge dynamics is influenced by the spin state in this prototypical orbital-spin-coupled system.
AB - Optical conductivity spectra of ferromagnetic pyrochlore vanadate Yb2 V2 O7 were investigated under a variation of both temperature and magnetic field. It was found that the spectrum of a Mott-gap excitation, a d - d transition between neighboring V sites, exhibits spectral weight transfer to lower energies with ferromagnetic ordering as well as an applied magnetic field. This result indicates that charge dynamics is influenced by the spin state in this prototypical orbital-spin-coupled system.
UR - http://www.scopus.com/inward/record.url?scp=33745750466&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745750466&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.74.024402
DO - 10.1103/PhysRevB.74.024402
M3 - Article
AN - SCOPUS:33745750466
VL - 74
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 2
M1 - 024402
ER -