Abstract
We observed all-in type Nb tetrahedral displacement in nonmagnetic pyrochlore niobates A2Nb2O7(A=Nd0.5Ca0.5 and Y0.5Ca0.5) through the analysis of the neutron pair distribution function and the extended x-ray absorption function spectroscopy. The all-in type Nb tetrahedral displacement, which has the character of a charge singlet state, is driven by the formation of the bonding orbital. The diffuse scattering in the x-ray diffraction, which has the resonant component in the Nb L3 edge, indicates that the all-in type Nb tetrahedral displacement has the periodicity with its short-range correlation.
| Original language | English |
|---|---|
| Article number | 085109 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 93 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Feb 4 2016 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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Observation of all-in type tetrahedral displacements in nonmagnetic pyrochlore niobates. / Torigoe, S.; Ishimoto, Y.; Aoishi, Y.; Murakawa, H.; Matsumura, D.; Yoshii, K.; Yoneda, Y.; Nishihata, Y.; Kodama, K.; Tomiyasu, K.; Ikeda, K.; Nakao, H.; Nogami, Yoshio; Ikeda, Naoshi; Otomo, T.; Hanasaki, N.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 93, No. 8, 085109, 04.02.2016.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Observation of all-in type tetrahedral displacements in nonmagnetic pyrochlore niobates
AU - Torigoe, S.
AU - Ishimoto, Y.
AU - Aoishi, Y.
AU - Murakawa, H.
AU - Matsumura, D.
AU - Yoshii, K.
AU - Yoneda, Y.
AU - Nishihata, Y.
AU - Kodama, K.
AU - Tomiyasu, K.
AU - Ikeda, K.
AU - Nakao, H.
AU - Nogami, Yoshio
AU - Ikeda, Naoshi
AU - Otomo, T.
AU - Hanasaki, N.
PY - 2016/2/4
Y1 - 2016/2/4
N2 - We observed all-in type Nb tetrahedral displacement in nonmagnetic pyrochlore niobates A2Nb2O7(A=Nd0.5Ca0.5 and Y0.5Ca0.5) through the analysis of the neutron pair distribution function and the extended x-ray absorption function spectroscopy. The all-in type Nb tetrahedral displacement, which has the character of a charge singlet state, is driven by the formation of the bonding orbital. The diffuse scattering in the x-ray diffraction, which has the resonant component in the Nb L3 edge, indicates that the all-in type Nb tetrahedral displacement has the periodicity with its short-range correlation.
AB - We observed all-in type Nb tetrahedral displacement in nonmagnetic pyrochlore niobates A2Nb2O7(A=Nd0.5Ca0.5 and Y0.5Ca0.5) through the analysis of the neutron pair distribution function and the extended x-ray absorption function spectroscopy. The all-in type Nb tetrahedral displacement, which has the character of a charge singlet state, is driven by the formation of the bonding orbital. The diffuse scattering in the x-ray diffraction, which has the resonant component in the Nb L3 edge, indicates that the all-in type Nb tetrahedral displacement has the periodicity with its short-range correlation.
UR - http://www.scopus.com/inward/record.url?scp=84958787291&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevB.93.085109
DO - 10.1103/PhysRevB.93.085109
M3 - Article
AN - SCOPUS:84958787291
VL - 93
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 8
M1 - 085109
ER -