caa a22 4500 445366125 CHVBK 20180317142931.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10909-010-0333-x doi (NATIONALLICENCE)springer-10.1007/s10909-010-0333-x Probable Observation of Quantized Vortex Lines Through Solid He Under DC Rotation [Elektronische Daten] [Masahiko Yagi, Akira Kitamura, Nobutaka Shimizu, Yoshinori Yasuta, Minoru Kubota] We report how one can detect quantized vortices in superfluids contained in cylindrical vessels in well-designed torsional oscillator (TO) experiments under DC rotation. We show the case of an artificial 3D superfluid (Fukuda et al. in Phys. Rev. B 71:212502, 2005) which is made of Kosterlits-Thouless 2D He film condensed on a porous glass substrate with a 3D connected surface of well-controlled pore size. We understand the TO experimental results with an extra energy dissipation peak under DC rotation by considering the circular quantized superflow around each of the vortex lines and interaction with thermally excited 2D vortices as discussed in Fukuda et al. (Phys. Rev. B 71:212502, 2005) and in Nemirovskii and Sonin (Phys. Rev. B 76: 224507, 2007). We discuss here the case of hcp solid 4He (see for ex. Balibar and Caupin in J. Phys., Condens. Matter 20:173201-1-19, 2008) and show the evidence of observation of the vortex lines penetration below a supersolid transition temperature (Kubota et al. in J. Low Temp. Phys. 158:572, 2010), T c, where macroscopic phase coherence is realized. It is found at exactly the same temperature T c, below which the hysteresis occurrs (Shimizu et ail. in arXiv:0903.1326, 2009). For hcp solid 4He we have reported the vortex fluid(VF) state onset temperature (Penzev et al. in Phys. Rev. Lett. 101:065301, 2008) T o=∼500mK, by detailed drive velocity, V ac dependence study using TO technique. The TO response of the hcp 4He is characterized by the energy dissipation peaked at T p near 100 mK similar to the behavior in a KT transition. The real supersolid (SS) state occurs at T c below T p and much lower than T o. Our observation of the evidence of vortex lines penetration just below T c together with the VF state properties gives support for the idea that hcp 4He shares some features with the "new type of superconductors”, where the vortex state, involving the VF as well as various vortex solid states, has been commonly discussed (Fisher et al. in Phys. Rev. B 43(1):130, 1991; Leggett in Quantum Liquids, Oxford University Press, London, 2006). Springer Science+Business Media, LLC, 2010 Supersolid state nationallicence Vortex lines penetration nationallicence Vortex fluid excitations nationallicence Torsional oscillator nationallicence DC rotation nationallicence Yagi Masahiko Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut Kitamura Akira Graduate School of Sci. & Tech., Niigata University, Niigata, Japan aut Shimizu Nobutaka Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut Yasuta Yoshinori Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut Kubota Minoru Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/5-6(2011-03-01), 492-499 0022-2291 162:5-6<492 2011 162 10909 https://doi.org/10.1007/s10909-010-0333-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-010-0333-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yagi Masahiko Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Kitamura Akira Graduate School of Sci. & Tech., Niigata University, Niigata, Japan aut NATIONALLICENCE 700 1- Shimizu Nobutaka Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Yasuta Yoshinori Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 700 1- Kubota Minoru Institute for Solid State Physics (ISSP), University of Tokyo, 277-8581, Kashiwa, Japan aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/5-6(2011-03-01), 492-499 0022-2291 162:5-6<492 2011 162 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer