Zobrazeno 1 - 10
of 30
pro vyhledávání: '"T Haavasoja"'
Publikováno v:
Journal of Low Temperature Physics. 57:55-59
We report on new measurements of the spontaneous decay threshold energyEc for high-frequency phonon propagation in He II at saturated vapor pressure atT=0.1 K. Superconducting tin tunnel generators and aluminum tunnel detectors were used in this stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71a147452762701137e2307761b2f0d5
https://doi.org/10.1007/bf00681516
https://doi.org/10.1007/bf00681516
Publikováno v:
Physical Review Letters. 44:1076-1079
The specific heat of liquid $^{3}\mathrm{He}$ has been measured from 1 to 10 mK between 0 and 32.5 bars. The values implied for the effective mass are considerably smaller than the currently accepted ones. Near zero pressure the specific-heat jump is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4af08600902eb1230acade00de1f89b
https://doi.org/10.1103/physrevlett.44.1076
https://doi.org/10.1103/physrevlett.44.1076
Publikováno v:
Physical Review Letters. 51:2406-2409
A new high-frequency cutoff for phonon propagation which lies beyond the well-known low-frequency cutoff due to anomalous dispersion is observed in phonon propagation experiments in liquid /sup 4/He using superconducting Sn and Al tunnel-junction gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64b71624627680a7b00617637a17e15d
https://doi.org/10.1103/physrevlett.51.2406
https://doi.org/10.1103/physrevlett.51.2406
Autor:
T. Haavasoja
Publikováno v:
Physica B+C. :1606-1614
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9315a1111b5cbc8cdfc7a4f9b2ecdbf
https://doi.org/10.1016/0378-4363(82)90184-x
https://doi.org/10.1016/0378-4363(82)90184-x
Publikováno v:
Physical Review Letters. 41:494-497
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2dbec73406aca9742a1942d5e74ac0e
https://doi.org/10.1103/physrevlett.41.494
https://doi.org/10.1103/physrevlett.41.494
Publikováno v:
Journal of Physics C: Solid State Physics. 7:L418-L422
Various alternatives to the Balian-Werthamer model of the B phase of superfluid 3He are considered. The linear NMR properties of a certain f-wave state of axial symmetry are shown to be very similar to those required by experiment.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34f1bd1dff779348953f9b803e1ce97b
https://doi.org/10.1088/0022-3719/7/23/003
https://doi.org/10.1088/0022-3719/7/23/003
Publikováno v:
Journal of Low Temperature Physics. 45:373-405
Extensive measurements of the heat capacity of liquid 3 He in the normal and superfluid phases are reported. The experiments range from 0.8 to 10 mK and cover pressures from 0 to 32.5 bar in zero magnetic field. The phase diagram of 3 He, based on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a78bb0626b83aad91f92663c3a01ff9
https://doi.org/10.1007/bf00655140
https://doi.org/10.1007/bf00655140
Publikováno v:
Physical Review Letters. 43:1509-1512
The specific heat of liquid $^{3}\mathrm{He}$ from 0.8 to 20 mK at zero pressure has been measured. Above \ensuremath{\sim} 3 mK the specific heat is linear in temperature and $\frac{C}{\mathrm{nRT}}=2.11$ ${\mathrm{K}}^{\ensuremath{-}1}$, which is 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d465dbbe1fd22204dfc237a16818e020
https://doi.org/10.1103/physrevlett.43.1509
https://doi.org/10.1103/physrevlett.43.1509
Publikováno v:
Le Journal de Physique Colloques. 39:C6-285
Pulsed NMR measurements of the susceptibility and of the transverse and longitudinal relaxation times of 3He intermixed with 9 nm carbon particles down to 0.4 mK show that the solid-liquid system near the surfaces favours ferromagnetic order below 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::387f2b58f100a13dbac4d277fc1af4f5
https://doi.org/10.1051/jphyscol:19786127
https://doi.org/10.1051/jphyscol:19786127
Publikováno v:
Physical Review B. 27:2767-2769
We demonstrate the long lifetime, against spontaneous decay (hω>>kT), of transverse phonons in the highly anharmonic solid 4 He. This is proved through the quantum generation and detection of the propagating phonons using superconducting tunnel junc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9e3a1162e3cfe8fb1affa61ecaa0ef
https://doi.org/10.1103/physrevb.27.2767
https://doi.org/10.1103/physrevb.27.2767