SIMULATIONS ON RADIATION-DAMAGE INITIATED BY O(1) PKA IN YBA2CU3O7

被引：6

作者：

CUI, FZ ^{[1
]}

LI, HD ^{[1
]}

JIN, L ^{[1
]}

LI, YY ^{[1
]}

机构：

[1] ACAD SINICA,INST PLASMA PHYS,HEIFE 230031,PEOPLES R CHINA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1994年 / 91卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0168-583X(94)96252-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Radiation damage processes initiated by 0(l) PKA of the Cu-O chain in the orthorhombic YBa2Cu3O7 were studied by molecular dynamics simulations. A special anisotropy of the displacement threshold energy (E(d)) of the 0(l) PKA was found. The average E(d) in the basal (001) plane was-only 4.2 eV. This value is much lower than that in other planes, for example E(d) (100) is 18.8 eV. For a damaging event of 0.5 keV 0(l) PKA in the basal (001) plane, atomic configurations belonging to a Frank dislocation with a (c/6) [001] Burgers vector were observed.

引用

页码：374 / 377

页数：4

共 9 条

[1] PREFERENTIAL RADIATION-DAMAGE OF THE OXYGEN SUBLATTICE IN YBA2CU3O7 - A MOLECULAR-DYNAMICS SIMULATION [J].

CUI, FZ ;

XIE, J ;

LI, HD .

PHYSICAL REVIEW B, 1992, 46 (17) :11182-11185

[2] POSSIBILITY OF HIGH-TEMPERATURE SUPERCONDUCTIVITY IN AN ORDERED TETRAGONAL CRYSTAL-STRUCTURE IN RBA2CU3O7 (R = RARE-EARTH) SUPERCONDUCTORS [J].

GUPTA, RP ;

GUPTA, M .

PHYSICAL REVIEW B, 1993, 47 (05) :2795-2800

[3] RADIATION EFFECTS IN IONIC SOLIDS [J].

ITOH, N ;

TANIMURA, K .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1986, 98 (1-4) :269-287

[4] DISPLACEMENT THRESHOLD ENERGY IN HIGH-TEMPERATURE SUPERCONDUCTORS .2. THRESHOLDS FOR O, BA AND Y IN YBA2CU3O7 [J].

KIRSANOV, VV ;

MUSIN, NN ;

SHAMARINA, HJ .

PHYSICS LETTERS A, 1992, 171 (3-4) :223-233

[5] A NEW 92-K HIGH-T(C) SUPERCONDUCTOR - HG-CONTAINING TL-BASED 1212 PHASE [J].

LIU, RS ;

HU, SF ;

JEFFERSON, DA ;

EDWARDS, PP ;

HUNNEYBALL, PD .

PHYSICA C, 1993, 205 (1-2) :206-211

[6] COMPUTER-SIMULATION OF ATOMIC-DISPLACEMENT CASCADES IN SOLIDS IN BINARY-COLLISION APPROXIMATION [J].

ROBINSON, MT ;

TORRENS, IM .

PHYSICAL REVIEW B, 1974, 9 (12) :5008-5024

[7] STRUCTURAL EFFECT OF HEAVY-ION IRRADIATION ON GDBACUO CERAMICS [J].

RUAULT, MO ;

BERNAS, H ;

GASGNIER, M ;

LEVET, JC ;

NOEL, H ;

GOUGEON, P ;

POTEL, M .

REVUE DE PHYSIQUE APPLIQUEE, 1990, 25 (01) :49-53

[8] NEUTRON-IRRADIATION EFFECTS ON CRITICAL CURRENT DENSITIES IN SINGLE-CRYSTALLINE YBA2CU3O7-DELTA [J].

SAUERZOPF, FM ;

WIESINGER, HP ;

KRITSCHA, W ;

WEBER, HW ;

CRABTREE, GW ;

LIU, JZ .

PHYSICAL REVIEW B, 1991, 43 (04) :3091-3100

[9] HIGH-RESOLUTION ELECTRON-MICROSCOPY OF ION-IRRADIATED GDBA2CU3O7 [J].

VANTENDELOO, G ;

RUAULT, MO ;

BERNAS, H ;

GASGNIER, M .

JOURNAL OF MATERIALS RESEARCH, 1991, 6 (04) :677-681

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