Topological quantum phase transition in the magnetic semimetal HoSb

Abstract

Magnetic topological semimetals, a novel state of quantum matter with nontrivial band topology, have emerged as a new frontier in physics and materials science. An external stimulus like temperature or...

Temperature-dependent Fermi surface probed by Shubnikov–de Haas oscillations in topological semimetal candidates DyBi and HoBi

“…3 a,b) yielded and , for HoBi and DyBi, respectively. Similarly, it has recently been shown that Kohler’s scaling is effective at K in HoSb and ErBi 25 , 45 . For other REPn containing magnetic RE , Kohler’s rule was disobeyed in the entire covered range of temperature 12 , 27 , 34 .…”

“…The presence of a rare-earth element with partially filled f -shells in REPn compounds provides even more fascinating physical properties. PrBi has been reported to exhibit nontrivial Berry phase and quadrupolar moment 24 , whereas topological quantum phase transition has been proposed in HoSb 25 . Several antiferromagnets among REPn family have been reported to demonstrate XMR 12 , 15 , 26 , 27 .…”

The Zintl phase compounds AEIn2As2 (AE = Ca, Sr, Ba): topological phase transition under pressure

“…And under strong spin–orbit coupling (SOC), the electron spins and crystal momentum are locked together, forming a helical spin texture in the momentum space of the surface states of TIs. 46,63,66–72 Fig. 6 shows the surface state and Fermi surface (FS) in the (001) plane for the AEIn 2 As 2 system at atmospheric pressure and induced zero band gap pressure.…”

“…And under strong spin-orbit coupling (SOC), the electron spins and crystal momentum are locked together, forming a helical spin texture in the momentum space of the surface states of TIs. 46,63,[66][67][68][69][70][71][72] To confirm that the effect of stress drives the topological phase transition of the AEIn 2 As 2 systems, we calculated the Wannier Charge Center (WCC), as shown in Fig. 7.…”

Designing of Z‐Scheme MgFe2O4/Fe2O3 Coupled CoCr2O4 Heterojunction with High Photocatalytic Activity for the Removal of Tetracycline Hydrochloride in Wastewater

“…To eliminate the pollution of antibiotics to the environment, researchers in various countries have adopted a variety of means to degrade antibiotics and other pollutants, including adsorption, membrane separation, biodegradation, photocatalysis, electrocatalysis, thermocatalysis, piezoelectric catalysis, ultrasonic catalysis, and so on. [ 6–16 ] Among these technologies, photocatalysis is a green technology that degrades antibiotics with the help of sunlight, which has been favored by researchers in various countries. [ 17–19 ] The selection of a suitable photocatalyst is a crucial determinant of photocatalytic degradation of antibiotics.…”