Muonium states in germanium

Journal Article · Sat Dec 01 04:00:00 EST 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.20.4391· OSTI ID:5775321

Holzschuh, E; Graf, H; Recknagel, E; Weidinger, A; Wichert, T; Meier, P F

An anomalous muonium state similar to that in silicon has been found in germanium. This state can be described by an anisotropic hyperfine interaction with the parameters A/sub perpendicular//h=130.7 +- 1 MHz and A/sub parallel//h=26.8 +- 1 MHz. In contrast to Si this anomalous muonium state in Ge was not observed at low external fields. In addition, a detailed investigation of normal muonium in Ge was carried out. For undoped Ge the hyperfine constant is found to be temperature independent in the range between 6 and 81 K with an average value of A (Ge)/h=2361 +- 3 MHz or A (Ge)/A (vac) =0.5290 +- 0.0007. The present value is considerably lower than that published by Gurevich et al. The relaxation rate of normal muonium in the Ge sample investigated increases sharply above about 50 K with an activation energy of 14 meV. A correlation with the thermal activation of impurity charge carriers is suggested.

• Research Organization: Physics Department, University of Konstanz, 7750 Konstanz, Federal Republic of Germany
• OSTI ID: 5775321
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 20:11; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
640303 -- Atomic
Molecular & Chemical Physics-- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules
74 ATOMIC AND MOLECULAR PHYSICS
ACTIVATION ENERGY
ATOMS
ELEMENTS
ENERGY
ENERGY LEVELS
GERMANIUM
HYPERFINE STRUCTURE
METALS
MUONIC ATOMS
MUONIUM
RELAXATION