Dislocation reaction mechanism of microcrack formation in (Cd, Mn) Te crystal

Lijun Luan; Li Gao; Hongwei Liu; Zong wen Liu; Pengfei Yu; Tao Wang; Li Duan; Peng Jin

doi:10.1016/j.jcrysgro.2020.125791

Dislocation reaction mechanism of microcrack formation in (Cd, Mn) Te crystal

Lijun Luan, Li Gao, Hongwei Liu, Zong wen Liu, Pengfei Yu, Tao Wang, Li Duan, Peng Jin

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The formation of a faulted dipole shaped like a letter Z (Z-shape) and a microcrack shaped like a letter S (S-shape) was investigated in (Cd, Mn) Te single crystal by transmission electron microscopy. Dislocations around the microcrack were determined as perfect dislocations and Shockley partial dislocations (partials) by different two-beam conditions. The nipped stair rod dislocation was produced by the interaction of two partials lying on mutually inclined {1 1 1} planes. The faulted dipole was generated by two partials moving toward the opposite directions on parallel {1 1 1} planes. Owing to the locking effect of Z-shape faulted dipole, the S-shape microcrack occurred along [1 1 1¯] direction.

Original language	English
Article number	125791
Journal	Journal of Crystal Growth
Volume	547
DOIs	https://doi.org/10.1016/j.jcrysgro.2020.125791
State	Published - 1 Oct 2020

Keywords

A1. Microcrack
A1. Stacking Fault
A1. Stair Rod Dislocation
B2. (Cd, Mn) Te Crystal

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10.1016/j.jcrysgro.2020.125791

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title = "Dislocation reaction mechanism of microcrack formation in (Cd, Mn) Te crystal",

abstract = "The formation of a faulted dipole shaped like a letter Z (Z-shape) and a microcrack shaped like a letter S (S-shape) was investigated in (Cd, Mn) Te single crystal by transmission electron microscopy. Dislocations around the microcrack were determined as perfect dislocations and Shockley partial dislocations (partials) by different two-beam conditions. The nipped stair rod dislocation was produced by the interaction of two partials lying on mutually inclined {1 1 1} planes. The faulted dipole was generated by two partials moving toward the opposite directions on parallel {1 1 1} planes. Owing to the locking effect of Z-shape faulted dipole, the S-shape microcrack occurred along [1 1 1¯] direction.",

keywords = "A1. Microcrack, A1. Stacking Fault, A1. Stair Rod Dislocation, B2. (Cd, Mn) Te Crystal",

author = "Lijun Luan and Li Gao and Hongwei Liu and {wen Liu}, Zong and Pengfei Yu and Tao Wang and Li Duan and Peng Jin",

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year = "2020",

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doi = "10.1016/j.jcrysgro.2020.125791",

language = "英语",

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journal = "Journal of Crystal Growth",

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TY - JOUR

T1 - Dislocation reaction mechanism of microcrack formation in (Cd, Mn) Te crystal

AU - Luan, Lijun

AU - Gao, Li

AU - Liu, Hongwei

AU - wen Liu, Zong

AU - Yu, Pengfei

AU - Wang, Tao

AU - Duan, Li

AU - Jin, Peng

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The formation of a faulted dipole shaped like a letter Z (Z-shape) and a microcrack shaped like a letter S (S-shape) was investigated in (Cd, Mn) Te single crystal by transmission electron microscopy. Dislocations around the microcrack were determined as perfect dislocations and Shockley partial dislocations (partials) by different two-beam conditions. The nipped stair rod dislocation was produced by the interaction of two partials lying on mutually inclined {1 1 1} planes. The faulted dipole was generated by two partials moving toward the opposite directions on parallel {1 1 1} planes. Owing to the locking effect of Z-shape faulted dipole, the S-shape microcrack occurred along [1 1 1¯] direction.

AB - The formation of a faulted dipole shaped like a letter Z (Z-shape) and a microcrack shaped like a letter S (S-shape) was investigated in (Cd, Mn) Te single crystal by transmission electron microscopy. Dislocations around the microcrack were determined as perfect dislocations and Shockley partial dislocations (partials) by different two-beam conditions. The nipped stair rod dislocation was produced by the interaction of two partials lying on mutually inclined {1 1 1} planes. The faulted dipole was generated by two partials moving toward the opposite directions on parallel {1 1 1} planes. Owing to the locking effect of Z-shape faulted dipole, the S-shape microcrack occurred along [1 1 1¯] direction.

KW - A1. Microcrack

KW - A1. Stacking Fault

KW - A1. Stair Rod Dislocation

KW - B2. (Cd, Mn) Te Crystal

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U2 - 10.1016/j.jcrysgro.2020.125791

DO - 10.1016/j.jcrysgro.2020.125791

M3 - 文章

AN - SCOPUS:85088399856

SN - 0022-0248

VL - 547

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

M1 - 125791

ER -

Dislocation reaction mechanism of microcrack formation in (Cd, Mn) Te crystal

Abstract

Keywords

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