ENDOR HYPERFINE CONSTANTS AND LATTICE DISTORTION OF V K-TYPE CENTERS

被引：26

作者：

DALY, DF

MIEHER, RL

机构：

[1] Department of Physics, Purdue University, Lafayette, IN

[2] Bell Telephone Laboratories, Whippany, NJ

来源：

PHYSICAL REVIEW | 1969年 / 183卷 / 02期

关键词：

D O I：

10.1103/PhysRev.183.368

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic hyperfine dipole-dipole interaction between VK-type centers (negatively charged diatomic halide molecule-ions) and the neighboring lattice nuclei has been calculated for the VK center in LiF and NaF and the VKA (Li) center in NaF using the F2- wave function of Wahl. The calculated hyperfine constants are sensitive to the relative positions of the F2- molecule-ion and the neighboring nuclei. When the calculated hyperfine constants were compared with those measured in electron-nuclear double-resonance (ENDOR) experiments, the displacements of the nuclei surrounding the VK-type centers were determined. In the vicinity of the center, the lattice contracts parallel to the axis of the molecule-ion and dilates perpendicular to this axis. The contact hyperfine interaction has been estimated and compared with the values measured in ENDOR experiments. The sign and order of magnitude of the contact hyperfine constants can be explained by assuming that the closed-shell orbitals of the molecule-ion are exchange-polarized. © 1969 The American Physical Society.

引用

页码：368 / &

共 34 条

[11] ELECTRON-NUCLEAR DOUBLE-RESONANCE DIPOLE-DIPOLE HYPERFINE CONSTANTS AND LATTICE DISTORTION OF VK CENTER IN LIF [J].

DALY, DF ;

MIEHER, RL .

PHYSICAL REVIEW LETTERS, 1967, 19 (11) :637-&

[12]

DALY DF, 1966, THESIS COLUMBIA U

[13]

DAS TK, PRIVATE COMMUNICATIO

[14]

DAS TP, 1964, PHYS REV, V134, P1079

[15] OPTICAL ABSORPTION OF CL-2(-) MOLECULE-IONS IN IRRADIATED POTASSIUM CHLORIDE [J].

DELBECQ, CJ ;

SMALLER, B ;

YUSTER, PH .

PHYSICAL REVIEW, 1958, 111 (05) :1235-1240

[16]

DELBECQ CJ, 1961, PHYS REV, V121, P1042

[17] ELECTRONIC STRUCTURE OF F-CENTERS IN KCL BY THE ELECTRON SPIN DOUBLE-RESONANCE TECHNIQUE [J].

FEHER, G .

PHYSICAL REVIEW, 1957, 105 (03) :1122-1123

[18]

Froese C, 1957, MATH P CAMB PHILOS S, V53, P206, DOI [10.1017/S0305004100032138, DOI 10.1017/S0305004100032138]

[19] ELECTRON-NUCLEAR DOUBLE RESONANCE STUDY + EXCHANGE POLARIZATION OF SELF-TRAPPED HOLE IN LIF [J].

GAZZINELLI, R ;

MIEHER, R .

PHYSICAL REVIEW LETTERS, 1964, 12 (23) :644-&

[20] ELECTRON-NUCLEAR DOUBLE RESONANCE OF SELF-TRAPPED HOLE IN LIF [J].

GAZZINELLI, R ;

MIEHER, RL .

PHYSICAL REVIEW, 1968, 175 (02) :395-+

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