THE HYBRIDIZATION CONTRIBUTION TO THE MOSSBAUER ISOMER-SHIFT IN INTERMETALLIC COMPOUNDS CONTAINING EU-151

被引：3

作者：

DEVRIES, JWC ^{[1
]}

THIEL, RC ^{[1
]}

BUSCHOW, KHJ ^{[1
]}

机构：

[1] RIJKSUNIV LEIDEN,KAMERLINGH ONNES LAB,2311 SB LEIDEN,NETHERLANDS

来源：

PHYSICA B & C | 1985年 / 128卷 / 03期

关键词：

EUROPIUM; -; SPECTROSCOPY; MOSSBAUER;

D O I：

10.1016/0378-4363(85)90009-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Moessbauer isomer shift in intermetallic compounds analyzed with the cellular model of A. R. Miedema and F. Van der Woude is composed of three contributions. One of these contributions (R prime ) is the hybridization of the s and p electrons of a non-transition metal with the d electrons of the Moessbauer atom. In Gd-based compounds R prime is regarded as a constant. In a previous work, on the other hand, authors found in Eu-based compounds a strong correlation between R prime and the number of outer p electrons of the non-transition metal. They show in this study that this correlation is artificial and can be attributed to a volume contraction of the Eu atom.

引用

页码：309 / 312

页数：4

共 8 条

[1] CHARGE-TRANSFER AND GD-155 ISOMER-SHIFT IN VARIOUS INTERMETALLIC COMPOUNDS OF GD [J].

DEGRAAF, H ;

THIEL, RC ;

BUSCHOW, KHJ .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1982, 12 (09) :2079-2090

[2]

DEGRAAF H, 1982, THESIS LEIDEN U

[3] EU-151 ISOMER-SHIFTS AND CHARGE-TRANSFER IN EU-BASE INTERMETALLIC COMPOUNDS [J].

DEVRIES, JWC ;

THIEL, RC ;

BUSCHOW, KHJ .

PHYSICA B & C, 1983, 121 (1-2) :100-108

[4]

DEVRIES JWC, 1984, THESIS LEIDEN U

[5]

DEVRIES JWC, UNPUB J PHYS F

[6] VOLUME EFFECTS UPON ALLOYING OF 2 TRANSITION-METALS [J].

MIEDEMA, AR ;

NIESSEN, AK .

PHYSICA B & C, 1982, 114 (03) :367-374

[7] A CELLULAR ATOMIC MODEL FOR THE MOSSBAUER ISOMER-SHIFT OF AU-197 IN ALLOYS [J].

MIEDEMA, AR ;

VANDERWOUDE, F .

PHYSICA B & C, 1980, 100 (02) :145-156

[8] MODEL PREDICTIONS FOR THE ENTHALPY OF FORMATION OF TRANSITION-METAL ALLOYS .2. [J].

NIESSEN, AK ;

DEBOER, FR ;

BOOM, R ;

DECHATEL, PF ;

MATTENS, WCM .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1983, 7 (01) :51-70

← 1 →