Magnetization differences at the A-B transition of superfluid3He

✍ Scribed by S.T.P. Boyd; Inseob Hahn; H.M. Bozler; C.M. Gould

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 157 KB
• Volume: 194-196
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)90742-0

✦ Synopsis

We report results from a new SQUID-based measurement of the total magnetization change of superfluid 3He at the A-B phase transition, AMAB t°tal. We used a simple first-principles calibration technique. At low fields -0.03 T, our data agree with past measurements, verifying the longstanding discrepancy between AMAB t°tal and AMAB nuclear the magnetization change which is measured by NMR. Use of a self-shielded solenoid allowed the first measurement of AMAB t°tal over the full range of magnetic field. We found the magnetization discrepancy to persist through the whole phase diagram.