STRUCTURAL, MAGNETIC AND ELECTRICAL-PROPERTIES OF NDNI1-XFEXO3 AND NDNI1-XCOXO3 SYSTEMS

被引：32

作者：

BLASCO, J

GARCIA, J

机构：

[1] Institute de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Facultad de Ciencias, 50009 Zaragoza, Pza. San Francisco s/n

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1994年 / 55卷 / 09期

关键词：

A OXIDES; C X-RAY DIFFRACTION; D ELECTRICAL PROPERTIES; D MAGNETIC PROPERTIES;

D O I：

10.1016/0022-3697(94)90009-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Samples of NdNi1-xFexO3 and NdNi1-xCoxO3 have been prepared using a sol-gel method and characterized by means of X-ray diffraction, magnetic susceptibility and electrical resistivity measurements. The solid solutions are possible in the whole concentration range with the consequent changes in the unit cell parameters. Electrical properties change strongly with low percentages of Ni replacements. For x = 0.1, the metal-insulator transition with thermal hysteresis is hidden. Samples with higher Fe or Co content are semiconductors showing temperature-dependent activation energy and following a variable range hopping mechanism. Magnetic susceptibility follows a Curie-Weiss-like behaviour. The magnetic moments for NdNi1-xFexO3 correspond to the addition of the Nd3+ and Fe3+ sublattices. For NdNi1-xCoxO3 samples, the cobalt ion is nearly in low spin state (S = 0).

引用

页码：843 / 852

页数：10

共 36 条

[1]

[Anonymous], 1990, METAL INSULATOR TRAN

[2] STRUCTURE, MAGNETIC AND ELECTRICAL-PROPERTIES IN ND1-XLAXNIO3 SYSTEM [J].

BLASCO, J ;

GARCIA, J .

SOLID STATE IONICS, 1993, 63-5 :593-598

[3] STRUCTURAL AND PHYSICAL CHARACTERIZATION OF NDNIO3 SYNTHESIZED BY A SOL-GEL METHOD [J].

BLASCO, J ;

GARCIA, J ;

PROIETTI, MG ;

CHABOY, J .

SOLID STATE IONICS, 1993, 63-5 :585-592

[4]

BLASCO J, IN PRESS J PHYS COND

[5]

BLASCO J, UNPUB PHYS REV B

[6]

BLASCO J, SOLID STATE COMMUN

[7] EXTRAORDINARY PRESSURE-DEPENDENCE OF THE METAL-TO-INSULATOR TRANSITION IN THE CHARGE-TRANSFER COMPOUNDS NDNIO3 AND PRNIO3 [J].

CANFIELD, PC ;

THOMPSON, JD ;

CHEONG, SW ;

RUPP, LW .

PHYSICAL REVIEW B, 1993, 47 (18) :12357-12360

[8] SERIES OF OXIDIZED TRIVALENT NICKEL COMPOUNDS DERIVED FROM PEROVSKITE [J].

DEMAZEAU, G ;

MARBEUF, A ;

POUCHARD, M ;

HAGENMULLER, P .

JOURNAL OF SOLID STATE CHEMISTRY, 1971, 3 (04) :582-+

[9]

GARCIA J, IN PRESS PHYSICA B

[10] SUDDEN APPEARANCE OF AN UNUSUAL SPIN-DENSITY WAVE AT THE METAL-INSULATOR-TRANSITION IN THE PEROVSKITES RNIO3 (R=PR, ND) [J].

GARCIAMUNOZ, JL ;

RODRIGUEZCARVAJAL, J ;

LACORRE, P .

EUROPHYSICS LETTERS, 1992, 20 (03) :241-247

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