Vortex Dynamics in hcp Solid 4He

Kubota, Minoru; Yasuta, Yoshinori; Gumann, Patryk; Nemirovskii, Sergey K.

doi:10.1007/s10909-009-0049-y

Cited by 7 publications

(13 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their intuitive discussion is also proven in terms of vortex dynamics in the randomly fluctuating vortex tangle 6 . The transition into the SS state 7,8 will be discussed, which is characterized by a unique order parameter and the critical velocity in the next chapter 3.…”

Section: Quantum Vortex State In Hcp 4 Hementioning

confidence: 99%

“…This is actively studied and there are references for it. Nemirovskii et al 8,6 , consider quantized vortex element dynamics for the experimental data analysis of the TO responses of the VF state in hcp 4 He, using a phenomenological relaxation model;…”

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

“…They 8,6 pointed out that there are two possible mechanisms for relaxation-like polarization of the VF. The first is alignment of elements of the vortex lines due to interaction with the normal component (see Tsubota et al(2004) 47 for detailed explanation).…”

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

“…Shimizu et al, 7 found for the first time that the hysteresis occurs below a characteristic temperature T c in solid He. They 8,7,9 propose from their detailed study of the hysteretic behavior that the hysteretic component of the NLRS, NLRS hys is actually additive to the NLRS quantity of the VF state. NLRS is found to continue to grow towards lower temperatures from the onset temperature T o as shown in Fig.…”

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

“…Special attention is given to evidence for the vortex state as the vortex fluid (VF) state 3,4,5,6 and its transition into the supersolid (SS) state 7,8,9 . Its features are described.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Quantized Vortex State in hcp Solid 4He

Kubota

2012

J Low Temp Phys

Self Cite

View full text Add to dashboard Cite

Keywords solid He · vortex state · vortex fluid state · supersolid state Abstract The quantized vortex state appearing in the recently discovered new states in hcp 4 He since their discovery 1,2 is discussed. Special attention is given to evidence for the vortex state as the vortex fluid (VF) state 3,4,5,6 and its transition into the supersolid (SS) state 7,8,9 . Its features are described. The historical explanations 10,11,12,13,14 for the SS state in quantum solids such as solid 4 He were based on the idea of Bose Einstein Condensation (BEC) of the imperfections such as vacancies, interstitials and other possible excitations in the quantum solids which are expected because of the large zero-point motions. The SS state was proposed as a new state of matter in which real space ordering of the lattice structure of the solid coexists with the momentum space ordering of superfluidity. A new type of superconductors, since the discovery of the cuprate high T c superconductors, HTSCs 15 , has been shown to share a feature with the vortex state, involving the VF and vortex solid states. The high T c s of these materials are being discussed in connection to the large fluctuations associated with some other phase transitions like the antiferromagnetic transition in addition to that of the low dimensionality. The supersolidity in the hcp solid 4 He, in contrast to the new superconductors which have multiple degrees of freedom of the Cooper pairs with spin as well as angular momentum freedom, has a unique feature of possessing possibly only the momentum fluctuations and vortex ring excitations associated with the possible low dimensional fluctuations of the subsystem(s). The high onset temperature of the VF state can be understood by considering thermally excited low D quantized vortices and it may be necessary to seek low dimensional sub-systems in hcp He which are hosts for vortices.PACS numbers: 67.80.bd 67.25.dk 67.25.dt 67.85.De

show abstract

Section: Quantum Vortex State In Hcp 4 Hementioning

confidence: 99%

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

Section: Vortex Dynamics In the Vf State And Possible Disappearance Omentioning

confidence: 99%

“…Special attention is given to evidence for the vortex state as the vortex fluid (VF) state 3,4,5,6 and its transition into the supersolid (SS) state 7,8,9 . Its features are described.…”

mentioning

confidence: 99%

See 3 more Smart Citations