Ning Xi

Oct 12, 2024 | mdpi.com | Yingjie Sun |Ting Liu |Chao Zhang |Ning Xi

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Aug 15, 2024 | nature.com | Ning Xi |Yuan Z. Gao |Yang Qi |Wei Li |Enze Lv

AbstractTraditional magnetic sub-Kelvin cooling relies on the nearly free local moments in hydrate paramagnetic salts, whose utility is hampered by the dilute magnetic ions and low thermal conductivity. Here we propose to use instead fractional excitations inherent to quantum spin liquids (QSLs) as an alternative, which are sensitive to external fields and can induce a very distinctive magnetocaloric effect.

Aug 15, 2024 | nature.com | Ning Xi |Yuan Z. Gao |Yang Qi |Wei Li |Enze Lv

AbstractTraditional magnetic sub-Kelvin cooling relies on the nearly free local moments in hydrate paramagnetic salts, whose utility is hampered by the dilute magnetic ions and low thermal conductivity. Here we propose to use instead fractional excitations inherent to quantum spin liquids (QSLs) as an alternative, which are sensitive to external fields and can induce a very distinctive magnetocaloric effect.

Feb 27, 2024 | nature.com | Ning Xi

AbstractA rotary motor combined with fibrous string demonstrates excellent performance because it is powerful, lightweight, and prone to large strokes; however, the stiffness range and force-generating capability of twisted string transmission systems are limited. Here, we present a variable stiffness artificial muscle generated by impregnating shear stiffening gels (STGs) into a twisted string actuator (TSA).

Jan 10, 2024 | nature.com | Yuan Gao |Wolfgang Schmidt |Chin-Wei Wang |Ning Xi |Ziyu Chen |Yang Qi | +5 more

AbstractSupersolid, an exotic quantum state of matter that consists of particles forming an incompressible solid structure while simultaneously showing superfluidity of zero viscosity1, is one of the long-standing pursuits in fundamental research2,3. Although the initial report of 4He supersolid turned out to be an artefact4, this intriguing quantum matter has inspired enthusiastic investigations into ultracold quantum gases5,6,7,8.