2003/10/16 by Kazuhiro Yamamoto, K. Yamamoto, H. Nakashima +9
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0310375
4 pages, 4 figures, submitted to Physical Review Letters
arxiv created 2003/10/16 · openalex publication_date 2003/10/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We explore superfluidity for 4He confined in a porous glass which has nanopores of 2.5 nm in diameter, at pressures up to 5 MPa. With increasing pressure, the superfluidity is drastically suppressed, and the superfluid transition temperature approaches 0 K at Pc = 3.5 MPa. The features strongly suggest that the extreme confinement of 4He into the nanopores induces a quantum phase transition from superfluid to nonsuperfluid at 0 K, and at Pc.