Superfluid <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math> phase of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>He</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
V. V. Dmitriev, M. S. Kutuzov, A. A. Soldatov, A. N. Yudin
Abstract
It is known that in low magnetic fields the superfluid transition of ^{3}He in nematic aerogel occurs into the polar phase. Using a vibrating aerogel resonator, we observe that in high magnetic fields this transition splits into two discrete transitions, occurring at different temperatures. According to theoretical models, a new superfluid phase-the β phase-should be realized between these two transitions. The temperature range of existence of the new phase is measured as a function of magnetic field. The results are well consistent with theoretical expectations for the β phase.
Topics & Concepts
SuperfluidityCondensed matter physicsPolarPhysicsMagnetic fieldPhase transitionPhase (matter)Superfluid filmAerogelRange (aeronautics)Function (biology)Liquid crystalRotonQuantum phase transitionIsotopes of heliumTransition temperatureQuantum vortexField (mathematics)Materials scienceQuantum, superfluid, helium dynamicsAtomic and Subatomic Physics ResearchCharacterization and Applications of Magnetic Nanoparticles