Magnetization and thermal expansion of single-crystal Er and Tm

Journal Article · Mon Apr 15 04:00:00 EDT 1991 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.347915· OSTI ID:5692803

Willis, F; Ali, N ^[1]

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1. Department of Physics and Molecular Science Program, Southern Illinois University, Carbondale, Illinois 62901 (US)

The magnetization and ac susceptibility data of single-crystal Er show the antiferromagnetic ordering of the {ital c} axis and basal plane moment components at {ital T}{sub {ital N}}{sub {parallel}} = 87 K and {ital T}{sub {ital N}}{sub {perpendicular}} = 53 K, respectively. In addition, we observe anomalies at 51, 40, 34, 29, and 27 K. These anomalies correspond to the commensurate spin-slip structures observed by Gibbs {ital et} {ital al}. (Phys. Rev. B {bold 34}, 8182 (1986)) in x-ray synchrotron scattering studies. From the thermal expansion study of single-crystal Er, we find that the phase transitions at {ital T}{sub {ital N}{sub {parallel}}} and 51 K are second order, whereas the transitions at {ital T}{sub {ital N}{sub {perpendicular}}}, 27, and 18 K are first order. The order of these transitions are in poor agreement with earlier studies of single-crystal Er. The magnetization measurements of single-crystal Tm show anomalies at {ital T}{sub {ital N}} = 57 K, {ital T}{sub {ital c}} = 30 K, and an anomaly at 41.5 K.

• OSTI ID: 5692803
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 69:8; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ANTIFERROMAGNETISM
CRYSTALS
ELEMENTS
ERBIUM
EXPANSION
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
METALS
MONOCRYSTALS
PHYSICAL PROPERTIES
RARE EARTHS
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
THULIUM
VERY LOW TEMPERATURE