caa a22 4500 44536517X CHVBK 20180317142928.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10909-011-0375-8 doi (NATIONALLICENCE)springer-10.1007/s10909-011-0375-8 Superfluid 3He—the Early Days [Elektronische Daten] [D. Lee, A. Leggett] A history is given of liquid 3He research from the time when 3He first became available following World WarII through 1972 when the discovery of the superfluid phases was made. The Fermi liquid nature was established early on, and the Landau Fermi liquid theory provided a framework for understanding the interactions between the Fermions (quasiparticles). The theory's main triumph was to predict zero sound, which was soon discovered experimentally. Experimental techniques are treated, including adiabatic demagnetization, dilution refrigerator technology, and Pomeranchuk cooling. A description of the superfluid 3He discovery experiments using the latter two of these techniques is given. While existing theories provided a basis for understanding the newly discovered superfluid phases in terms of ℓ>0 Cooper pairs, the unexpected stability of the A phase in the high-P, high-T region of the phase diagram needed for its explanation a creative leap beyond the BCS paradigm. The use of sum rules to interpret some of the unusual magnetic resonance in liquid 3He is discussed. Eventually a complete theory of the spin dynamics of superfluid 3He was developed, which predicted many of the exciting phenomena subsequently discovered. Springer Science+Business Media, LLC, 2011 Lee D. Department of Physics and Astronomy, Texas A&M Univ., College Station, TX, USA aut Leggett A. Department of Physics, Univ. of Illinois, Urbana-Champaign, IL, USA aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 164/3-4(2011-08-01), 140-172 0022-2291 164:3-4<140 2011 164 10909 https://doi.org/10.1007/s10909-011-0375-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-011-0375-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee D. Department of Physics and Astronomy, Texas A&M Univ., College Station, TX, USA aut NATIONALLICENCE 700 1- Leggett A. Department of Physics, Univ. of Illinois, Urbana-Champaign, IL, USA aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 164/3-4(2011-08-01), 140-172 0022-2291 164:3-4<140 2011 164 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer