Structural changes in single crystals NbSe2 after high-temperature treatment

被引：1

作者：

Braude, I. S. ^{[1
]}

Mamalui, A. A. ^{[2
]}

Onishko, O. N. ^{[2
]}

机构：

[1] Natl Acad Sci Ukraine, BI Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine

[2] Natl Tech Univ, Kharkov Polytech Inst, UA-61002 Kharkov, Ukraine

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 486卷 / 1-2期

关键词：

Quasi-low-dimensional system; High-temperature treatment; Vacancy formation; Phase transitions; Diffuse X-ray scattering;

D O I：

10.1016/j.jallcom.2009.07.083

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of high-temperature annealing (443 K < T < 463 K) upon fine structure of single crystals NbSe2 has been investigated. It is found from diffuse X-ray scattering (DXS) measurement that vacancy-type point defects of various sizes appear in the specimens after thermal treatment. The defects cause anisotropic displacement of the atoms in the lattice and change the crystal polytype from 2H-NbSe2 to 4H-NbSe2-x. conceivably via the 3R-NbSe2-x phase. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：859 / 863

页数：5

共 14 条

[1]

Antonova E. A., 1969, Fizika Metallov i Metallovedenie, V27, P441

[2]

BIRGENO RD, 1990, COLLECTION PHYS PROP, P250

[3] THEORY OF DIFFUSE X-RAY-SCATTERING AND ITS APPLICATION TO STUDY OF POINT-DEFECTS AND THEIR CLUSTERS [J].

DEDERICHS, PH .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1973, 3 (02) :471-496

[4]

EHRHART P, 1981, DIFFUSE RONTGENSTREU, P108

[5]

EREMENKO VV, 2006, 21 GEN C EPS COND MA, P713

[6]

GINZBURG VL, 1977, PROBLEM SUPERCONDUCT

[7]

HEJKER DM, 1963, XRAY DIFFRAKTOMETRY

[8]

KRIVOGLAZ MA, 1967, THEORY XRAYS THERMAL

[9]

KRIVOGLAZ MA, 1981, SOLID STATE PHYS, V23, P2720

[10]

Mamalui AA, 2005, FUNCT MATER, V12, P521

← 1 2 →