Infrared study of crystal field excitations in Nd2CuO4

被引：17

作者：

Jandl, S ^{[1
]}

Dufour, P

Richard, P

Nekvasil, V

Zhigunov, DI

Barilo, SN

Shiryaev, SV

机构：

[1] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada

[2] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

[3] Byelarussian Acad Sci, Inst Phys Solids & Semicond, Minsk 220072, BELARUS

来源：

JOURNAL OF LUMINESCENCE | 1998年 / 78卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Nd2CuO4; infrared transmission; crystal-field excitations;

D O I：

10.1016/S0022-2313(97)00314-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have observed infrared active Nd3+ ion crystal-field (CF) excitations as a function of temperature in Nd2CuO4 single crystals. The detected absorption bands allowed to determine 23 excited CF levels of the 4 I term. Using these levels, a set of the parameters of the CF Hamiltonian has been calculated confirming the one determined previously by Raman measurements. CF excitations of Nd3+ ions, in inequivalent sites, have also been detected in as-grown single crystals and associated with two different types of defects. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：197 / 203

页数：7

共 25 条

[1]

BARILO SN, 1989, SFKHT, V2, P138

[2] CRYSTAL-FIELD EXCITATIONS IN ND2CUO4, PR2CUO4, AND RELATED N-TYPE SUPERCONDUCTORS [J].

BOOTHROYD, AT ;

DOYLE, SM ;

PAUL, DM ;

OSBORN, R .

PHYSICAL REVIEW B, 1992, 45 (17) :10075-10086

[3] THE FLUX GROWTH OF CRYSTALS OF (LA,SR)2CUO4 AND (LA,SR)CUO3 [J].

CHEN, CK ;

WATTS, BE ;

WANKLYN, BM ;

THOMAS, P .

SOLID STATE COMMUNICATIONS, 1988, 66 (06) :611-612

[4] RAMAN-STUDY OF KRAMERS DOUBLETS IN ND2CUO4 [J].

DUFOUR, P ;

JANDL, S ;

THOMSEN, C ;

CARDONA, M ;

WANKLYN, BM ;

CHANGKANG, C .

PHYSICAL REVIEW B, 1995, 51 (02) :1053-1057

[5] OXYGEN-VACANCY-INDUCED CHARGE REDISTRIBUTION IN THE CUO2 PLANES OF NON-STOICHIOMETRIC RBA2CU3O7-X (0 LESS-THAN X LESS-THAN 1) DETERMINED BY NEUTRON CRYSTAL-FIELD SPECTROSCOPY [J].

FURRER, A ;

ALLENSPACH, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (23) :3715-3720

[6] THE CRYSTALLINE ELECTRIC-FIELD AS A DIRECT PROBE FOR THE ELECTRON DOPING PROCESS IN ND2-XCEXCUO4 [J].

FURRER, A ;

ALLENSPACH, P ;

MESOT, J ;

STAUB, U .

PHYSICA C, 1990, 168 (5-6) :609-616

[7]

HARLEY RT, 1987, SPECTROSCOPY SOLIDS

[8] NEUTRON SPECTROSCOPIC EVIDENCE FOR CLUSTER FORMATION AND PERCOLATIVE SUPERCONDUCTIVITY IN PR2-XCEXCUO4-DELTA (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.2) [J].

HENGGELER, W ;

CUNTZE, G ;

MESOT, J ;

KLAUDA, M ;

SAEMANNISCHENKO, G ;

FURRER, A .

EUROPHYSICS LETTERS, 1995, 29 (03) :233-238

[9] CRYSTAL-FIELD LEVEL SCHEME OF ND2CUO4 [J].

HOFFMANN, P ;

LOEWENHAUPT, M ;

HORN, S ;

VONAAKEN, P ;

JOSTARNDT, HD .

PHYSICA B-CONDENSED MATTER, 1990, 163 (1-3) :271-272

[10]

HUTCHINGS MT, 1964, SOLID STATE PHYS, V16, P227

← 1 2 3 →