Direct observation of charge order in an epitaxial NdNiO3 film -: art. no. 126402

被引：202

作者：

Staub, U ^{[1
]}

Meijer, GI

Fauth, F

Allenspach, R

Bednorz, JG

Karpinski, J

Kazakov, SM

Paolasini, L

d'Acapito, F

机构：

[1] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[2] IBM Corp, Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] ETH Zurich, Festkorperphys Lab, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.88.126402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first direct observation of charge order of Ni3+delta' and Ni3-delta by resonant x-ray scattering experiments in an epitaxial film of NdNiO3 is reported. A quantitative value of delta + delta' = (0.45 +/- 0.04)e was obtained. The temperature dependence of the charge order deviates significantly from those of the magnetic moment and crystallographic structure. This might be an indication of a difference in their fluctuation time scales. These observations are discussed in terms of the temperature-driven metal-insulator transition in the RNiO3 family.

引用

页数：4

共 22 条

[1] Room-temperature monoclinic distortion due to charge disproportionation in RNiO3 perovskites with small rare-earth cations (R = Ho, Y, Er, Tm, Yb, and Lu):: A neutron diffraction study
Alonso, JA
Martínez-Lope, MJ
Casais, MT
García-Muñoz, JL
Fernández-Díaz, MT
[J]. PHYSICAL REVIEW B, 2000, 61 (03): : 1756 - 1763
[2] Metal-insulator transitions, structural and microstructural evolution of RNiO3 (R = Sm, Eu, Gd, Dy, Ho, Y) perovskites:: Evidence for room-temperature charge disproportionation in monoclinic HoNiO3 and YNiO3
Alonso, JA
Martínez-Lope, MJ
Casais, MT
Aranda, MAG
Fernández-Díaz, MT
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (20) : 4754 - 4762
[3] Charge disproportionation in RNiO3 perovskites:: Simultaneous metal-insulator and structural transition in YNiO3
Alonso, JA
García-Muñoz, JL
Fernández-Díaz, MT
Aranda, MAG
Martínez-Lope, MJ
Casais, MT
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (19) : 3871 - 3874
[4] REDUCED FORMS OF LANIO3 PEROVSKITE .1. EVIDENCE FOR NEW PHASES - LA2NI2O5 AND LANIO2
CRESPIN, M
LEVITZ, P
GATINEAU, L
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1983, 79 : 1181 - 1194
[5] Analysis of the x-ray absorption near-edge-structure spectra of La1-xNdxNiO3 and LaNi1-xFexO3 perovskites at the nickel K edge
Garcia, J
Blasco, J
Proietti, MG
Benfatto, M
[J]. PHYSICAL REVIEW B, 1995, 52 (22): : 15823 - 15828
[6] SUDDEN APPEARANCE OF AN UNUSUAL SPIN-DENSITY WAVE AT THE METAL-INSULATOR-TRANSITION IN THE PEROVSKITES RNIO3 (R=PR, ND)
GARCIAMUNOZ, JL
RODRIGUEZCARVAJAL, J
LACORRE, P
[J]. EUROPHYSICS LETTERS, 1992, 20 (03): : 241 - 247
[7] NEUTRON-DIFFRACTION STUDY OF RNIO3 (R = LA,PR,ND,SM) - ELECTRONICALLY INDUCED STRUCTURAL-CHANGES ACROSS THE METAL-INSULATOR-TRANSITION
GARCIAMUNOZ, JL
RODRIGUEZCARVAJAL, J
LACORRE, P
TORRANCE, JB
[J]. PHYSICAL REVIEW B, 1992, 46 (08): : 4414 - 4425
[8] Metal-insulator transitions
Imada, M
Fujimori, A
Tokura, Y
[J]. REVIEWS OF MODERN PHYSICS, 1998, 70 (04) : 1039 - 1263
[9] SYNTHESIS, CRYSTAL-STRUCTURE, AND PROPERTIES OF METALLIC PRNIO3 - COMPARISON WITH METALLIC NDNIO3 AND SEMICONDUCTING SMNIO3
LACORRE, P
TORRANCE, JB
PANNETIER, J
NAZZAL, AI
WANG, PW
HUANG, TC
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1991, 91 (02) : 225 - 237
[10] MASLEN EN, 1992, INT TABLES CRYSTALLO, P548

← 1 2 3 →