Published March 1979 | Version v1
Journal article Metadata-only

Magnetic moments of the 11/2- states in 145,147,149Eu and paramagnetism in the system EuSm

Creators

  • 1. Erlangen-Nuernberg Univ., Erlangen (Germany, F.R.). Physikalisches Inst.

Description

The g-factors of the 11/2- states in 145,147,149Eu were measured by the TDPAD method in metallic Sm-targets. The temperature dependence of the paramagnetism in the system 145EuSm follows strictly a Curie-Weiss law Bsub(eff) = B0[1+antiC/(μy-theta)] with C = C= -50(2)K and the ta = -29(5)K. Extrapolation to T→infinitely yields g(145Eu) = +1.356(8), g(147Eu) = +1.28(1) and g(149Eu) = +1.27(5). In addition, the quadruole coupling constant μypsilonsub(Q)=12.5(5) MHz, and a lower limit for the paramagnetic relaxation time tau = 1 μs was determined at room temperature for the 11/2- state of 145Eu in Sm. (orig.)

Abstract (German)

Mit der TDPAD-Methode wurden in metallischen Sm-Targets die g-Faktoren der 11/2- -Zustaende in 145,147,149Eu gemessen. Die Temperatur-Abhaengigkeit des Paramagnetismus im System 145EuSm befolgt streng ein Curie-Weis-Gesetz Bsub(eff) = B0[1+antiC/(T-theta)] mit C = -50(2) K und theta = -29(5) K. Die Extrapolation nach T→unendlich ergibt g(145Eu) = +1,356(8), g(147Eu) = +1,28(1) und g(149Eu) = +1,27(5). Zusaetzlich wurde fuer den 11/2- -Zustand von 145Eu in Sm bei Raumtemperatur die Quadrupol-Kopplungskonstante μypsilonsub(Q)=12,5(5) MHz und eine untere Grenze fuer die paramagnetische Relaxationszeit tau = 1 μs bestimmt. (orig.)

Additional details

Publishing Information

Journal Title
Z. Phys., A
Journal Volume
290
Journal Issue
2
Series
Z. Phys., A.
Journal Page Range
227-228

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
10472269
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COUPLING CONSTANTS; EUROPIUM 145; EXCITED STATES; EXPERIMENTAL DATA; GYROMAGNETIC RATIO; ISOLATED VALUES; MAGNETIC MOMENTS; PARAMAGNETISM; RELAXATION; SAMARIUM
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; DATA FORMS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ENERGY LEVELS; EUROPIUM ISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MAGNETISM; METALS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; RADIOISOTOPES; RARE EARTH NUCLEI; RARE EARTHS