Doping of sapphire single crystals with 111In and 111mCd detected by perturbed angular correlation

被引：0

作者：

Habenicht, S ^{[1
]}

Lupascu, D ^{[1
]}

Neubauer, M ^{[1
]}

Uhrmacher, M ^{[1
]}

Lieb, KP ^{[1
]}

机构：

[1] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany

来源：

HYPERFINE INTERACTIONS | 1999年 / 120卷 / 1-8期

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The electric hyperfine interaction of ion beam implanted In-111 and Cd-111m probe atoms in sapphire (Al2O3) single crystals has been investigated using perturbed angular correlation spectroscopy. For both probe atoms the same distinctive electric field gradient was found, indicating that nearly all the implanted probe atoms form a stable substitutional configuration in the temperature range between 77 K and 873 K on the aluminum sublattice. A comparative study between In-111 and Cd-111m-measurements points to a dynamic interaction initiated by the electron-capture of In-111(EC)Cd-111 similar to In2O3 and La2O3. Size and orientation of the EFG are discussed in comparison to experimental results in Cr2O3 single crystals.

引用

页码：445 / 448

页数：4

共 10 条

[1] REFINEMENT OF ATOMIC POSITIONS IN BIXBYITE OXIDES USING PERTURBED ANGULAR-CORRELATION SPECTROSCOPY [J].

BARTOS, A ;

LIEB, KP ;

UHRMACHER, M ;

WIARDA, D .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1993, 49 :165-169

[2] A COMPACT TDPAC SPECTROMETER [J].

BARTOS, A ;

SCHEMMERLING, K ;

WENZEL, T ;

UHRMACHER, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 330 (1-2) :132-139

[3] SCALING OF THE ELECTRIC-FIELD GRADIENT OF CD-111 IMPURITIES IN THE BIXBYITE OXIDES OF Y, SC, DY AND YB [J].

BARTOS, A ;

LIEB, KP ;

PASQUEVICH, AF ;

UHRMACHER, M .

PHYSICS LETTERS A, 1991, 157 (8-9) :513-518

[4] PAC-studies of Sn-doped In2O3: Electronic defect relaxation following the In-111(EC)Cd-111-decay [J].

Habenicht, S ;

Lupascu, D ;

Uhrmacher, M ;

Ziegeler, L ;

Lieb, KP .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1996, 101 (02) :187-196

[5] THE ELECTRIC-FIELD GRADIENT OF CD-111 IN AN ALPHA-AL2O3 SINGLE-CRYSTAL [J].

KESTEN, J .

HYPERFINE INTERACTIONS, 1989, 52 (01) :17-27

[6] Relaxation of electronic defects in pure and doped La2O3 observed by perturbed angular correlations [J].

Lupascu, D ;

Habenicht, S ;

Lieb, KP ;

Neubauer, M ;

Uhrmacher, M ;

Wenzel, T .

PHYSICAL REVIEW B, 1996, 54 (02) :871-883

[7] DYNAMIC HYPERFINE INTERACTION IN CR2O3 OBSERVED VIA PAC [J].

NEUBAUER, M ;

BARTOS, A ;

LIEB, KP ;

LUPASCU, D ;

UHRMACHER, M ;

WENZEL, T .

EUROPHYSICS LETTERS, 1995, 29 (02) :175-180

[8] ENERGY CALIBRATION OF THE 500 KV HEAVY-ION IMPLANTER IONAS [J].

UHRMACHER, M ;

PAMPUS, K ;

BERGMEISTER, FJ ;

PURSCHKE, D ;

LIEB, KP .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1985, 9 (02) :234-242

[9] CALCULATED PERTURBED ANGULAR-CORRELATIONS FOR IN-111 DOPED CUBIC SINGLE-CRYSTALS [J].

WEGNER, D .

HYPERFINE INTERACTIONS, 1985, 23 (02) :179-210

[10]

WICHERT T, 1984, HYPERFINE INTERACTIO

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