Suppression of spin fluctuations in TiBe/sub 2/ by high magnetic fields

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.26.3783· OSTI ID:6653367

Stewart, G R; Smith, J L; Brandt, B L

Measurement of the low-temperature specific heat of a well-characterized 15.6-mg sample of TiBe/sub 2/ was performed in magnetic fields of 0, 6.5, 11.4, 14.2, and 17.0 T. The results indicate a striking depression of the spin-fluctuation-caused upturn with increasing field in the lower-temperature specific heat and very little change at higher temperatures where the spin fluctuations are less predominant. A field for full suppression of the spin fluctuations is extrapolated to be above about 25 T. The field at which the onset of spin-fluctuation depression occurs is 5.2 +- 0.3 T, suggesting that the previously observed anomalies in the susceptibility and differential susceptibility of TiBe/sub 2/ at 5.5 T are connected to the onset of the depression of spin fluctuations. Furthermore, this onset of spin-fluctuation depression at 5.2 +- 0.3 T coupled with the extrapolation to full suppression above 25 T serves to unify the interpretations of previous data on TiBe/sub 2/ by Wohlfarth, by Acker et al., and by van Deursen et al. which were previously thought to be in contradiction.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6653367
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 26:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANGULAR MOMENTUM
BERYLLIUM ALLOYS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FLUCTUATIONS
INFORMATION
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETORESISTANCE
NUMERICAL DATA
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SPECIFIC HEAT
SPIN
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TITANIUM ALLOYS
ULTRALOW TEMPERATURE
VARIATIONS
VERY LOW TEMPERATURE