Nuclear magnetic resonance on115In in AuIn2 at very low temperatures

✍ Scribed by P. Smeibidl; B. Schro¨der-Smeibidl; W. Wendler; K. Gloos; F. Pobell

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 142 KB
• Volume: 194-196
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)90499-5

✦ Synopsis

To investigate possible nuclear magnetic ordering phenomena we have performed pulsed NMR measurements on ~5In in Auln 2 in magnetic fields of 7 mT < B < 114 mT and in the temperature range between 0.03 mK < T < 5 mK. With decreasing temperature we notice a dramatic shortening of the effective spin-spin relaxation time x2* by more than one order of magnitude, which depends exponentially on nuclear polarization. We observe a Curie-WeiB law for the nuclear magnetization with 0 > 0. However below a certain temperature, depending on the external magnetic field the magnetization remains constant.