MOSSBAUER-EFFECT STUDIES IN HAFNIUM-METAL SINGLE CRYSTALS

被引：19

作者：

BOOLCHAND, P

ROBINSON, BL

JHA, S

机构：

[1] Case Western Reserve University, Cleveland

[2] University of Cincinnati, Cincinnati, OH

[3] Education Research Center, Massachusetts Institute of Technology, Cambridge, MA

来源：

PHYSICAL REVIEW | 1969年 / 187卷 / 02期

关键词：

D O I：

10.1103/PhysRev.187.475

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Mössbauer effect in Hf178 has been studied with oriented single-crystal absorbers of hafnium metal at the temperature of liquid helium. Along the [0001] axis, only the |Δm|=1 component of the quadrupole spectrum is observed, and along the [1010] axis only the |Δm|=1 and |Δm|=2 components are observed. Combining these observations with those made using a polycrystalline hafnium-metal absorber, the magnitude of the electric field gradient was found to be Vzz=(0.95±0.04)×1018 V/cm2, and the asymmetry parameter η<0.1. The Debye temperature of hafnium carbide has been estimated to be (350±10)°K, and the Debye temperature of hafnium metal has been found to be (227±10) and (192±13)°K, for γ rays propagating parallel and perpendicular to the c axis, respectively. © 1969 The American Physical Society.

引用

页码：475 / +

页数：1

共 17 条

[1] STUDY OF NUCLEAR STRUCTURE BY ELECTROMAGNETIC EXCITATION WITH ACCELERATED IONS [J].

ALDER, K ;

BOHR, A ;

HUUS, T ;

MOTTELSON, B ;

WINTHER, A .

REVIEWS OF MODERN PHYSICS, 1956, 28 (04) :432-542

[2]

FRAUENFELDER H, 1962, MOSSBAUER EFFECT, P45

[3]

GERDAU E, 1968, HYPERFINE STRUCTURE, P261

[4] STUDIES OF OS189 - GAMMS RAYS, LIFETIMES, AND MOSSBAUER EFFECT [J].

GREGORY, MC ;

ROBINSON, BL ;

JHA, S .

PHYSICAL REVIEW, 1969, 180 (04) :1158-&

[5]

HARDY KA, 1969, B AM PHYS SOC, V14, P133

[6]

HSU FHH, 1969, B AM PHYS SOC, V14, P556

[7]

JHA S, 1968, B AM PHYS SOC, V13, P60

[8]

KALVIUS M, 1965, MOSSBAUER EFFECT MET, V1, P177

[9]

MARELIUS A, 1968, HYPERFINE STRUCTURE, P1043

[10]

MARKLUND I, 1966, ARK FYS, V33, P453

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