67 citations · 109 across the 8 of their papers we have counts for
8 papers
Superconducting zinc heat switch for continuous nuclear demagnetization refrigerator and sub-mK experiments
Ryo Toda, Shohei Takimoto, Yuma Uematsu +2
We have developed and tested a zinc superconducting heat switch suitable for magnetic refrigeration and calorimetric experiments at sub-millikevin (sub-mK) temperatures. The specif…
He in Nanoporous Media: 4D XY Quantum Criticality at Finite Temperatures
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
We review our study of critical phenomena in superfluid He confined in nanoporous glasses. He in nanoporous media is an ideal ground to survey the quantum phase transition…
Construction of Continuous Magnetic Cooling Apparatus with Zinc Soldered PrNi Nuclear Stages
Shohei Takimoto, Ryo Toda, Satoshi Murakawa +1
We report design details of the whole assembly of a compact and continuous nuclear demagnetization refrigerator (CNDR) with two PrNi nuclear stages, which can keep temperature…
4D-XY Superfluid Transition and Dissipation in He Confined in Nanoporous Media
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
He confined in nanoporous Gelsil glass is a unique, strongly correlated Bose system exhibiting quantum phase transition (QPT) by controlling pressure. Previous studies revealed…
Evidence for 4D XY Quantum Criticality in He Confined in Nanoporous Media at Finite Temperatures
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
He confined in nanoporous media is a model Bose system that exhibits quantum phase transition (QPT) by varying pressure. We have precisely determined the critical exponent of t…
Effect of Rotation on Elastic Moduli of Solid He
Tomoya Tsuiki, Daisuke Takahashi, Satoshi Murakawa +3
We report measurements of elastic moduli of hcp solid He down to 15 mK when the samples are rotated unidirectionally. Recent investigations have revealed that the elastic behav…
Odd-frequency Cooper pairs and zero-energy surface bound states in superfluid 3He
S. Higashitani, S. Matsuo, Y. Nagato +4
We study the odd-frequency Cooper pairs formed near the surface of superfluid 3He. The odd-frequency pair amplitude is closely related to the local density of states in the low ene…
Surface Majorana Cone of the Superfluid He B Phase
S. Murakawa, Y. Wada, Y. Tamura +9
The superfluid He B phase, one of the oldest unconventional fermionic condensates experimentally realized, is recently predicted to support Majorana fermion surface states. Maj…