Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 65 | ISSUE 4 | PAGE 341
On the magnetic field effect on the sound velocity of a dilute Kramers-ion glass at low temperature
Recent results on the magnetic field effect on the sound velocity V in aluminosilicate glasses doped with dysprosium are analyzed on the base of a minimal model for the ground state of Dy3+ (Kramers ion with J — 15/2) described by a wave function <p± ~ V±jm + *)V±1/2The first term represents the state with a large J projection on a local crystal field axis and the random parameter η ((tj) — 0, (t7z) <C 1) introduces a small admixture of the state ¥>±l/2 into the ground one. A relative V variation due to resonance interaction of sound waves with this state split ted by Η is determined as a function of Η and T. It possess an universal asymptotic behavior. Our results are in a reasonable agreement with the experiment. Possible structure of the crystal fields that can induce this state is discussed. PACS: 75.50.Kj