Heavy fermions in high magnetic fields<xref rid="cpb_28_1_017106fn1" ref-type="fn">*</xref><fn id="cpb_28_1_017106fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. U1632275), the National Key R&D Program of China (Grant Nos. 2017YFA0303100 and 2016YFA0300202), and the Science Challenge Project of China (Grant No. TZ2016004).</p></fn>

Heavy fermions in high magnetic fields**

Project supported by the National Natural Science Foundation of China (Grant No. U1632275), the National Key R&D Program of China (Grant Nos. 2017YFA0303100 and 2016YFA0300202), and the Science Challenge Project of China (Grant No. TZ2016004).

Smidman M¹, Shen B¹, Guo C Y¹, Jiao L¹, Lu X^{1, 2}, Yuan H Q^{1, 2, †}

(a) The intensity of the neutron diffraction peaks of the two SDW vectors Q_h = ( q, q,0.5) and Q_v = (q, −q,0.5) as a function of the direction of the applied 11.4 T field in the vicinity of the [100] direction. Here the angle ϕ corresponds to the angle relative to [100]. It can be seen that upon tilting the field beyond [100], there is an abrupt depopulation of one SDW domain and complete population of the other. (b), (c) The hysteresis of this abrupt switch of the domains about the [100] direction, confirming that this is a first order process. All figures are reproduced with permission from Macmillan Publishers Ltd: Nature Physics (Ref. [84]), copyright 2014.