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- Title
Magnetic Properties of a Monocrystalline Quasicrystal in the Al–Pd–Mn System.
- Authors
Rempel’, A. A.; Nazarova, S. Z.; Gusev, A. I.
- Abstract
Magnetic susceptibility of a monocrystalline icosahedral Al[sub 70.2]Pd[sub 21.3]Mn[sub 8.5] quasicrystal was measured over the temperature range from 4 to 1100 K. The susceptibility was found to include the temperature-independent diamagnetic contribution, the temperature-dependent Curie's contribution, and the contribution from the Pauli paramagnetism of an electron system with energy gap. An analysis of the low-temperature susceptibility revealed the presence of about 0.008% of ions with magnetic moment 4µ[sub B] in the quasicrystal at 4 K. It is assumed that the ions with uncompensated magnetic moments appear near the structural vacancies in the quasicrystal lattice. The energy gap between the valence and conduction bands is estimated at Δ = 0.64 eV, and the effective mass of charge carriers is equal to approximately 70 electron masses.
- Subjects
QUASICRYSTALS; MAGNETIC crystals; ALUMINUM alloys
- Publication
JETP Letters, 2000, Vol 72, Issue 3, p144
- ISSN
0021-3640
- Publication type
Article