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
ALDER, K
BOHR, A
HUUS, T
MOTTELSON, B
WINTHER, A
[J]. 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
GREGORY, MC
ROBINSON, BL
JHA, S
[J]. 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

← 1 2 →