Magnetic order of rare-earth tritelluride CeTe₃at low temperature

Suppression of charge density wave order by disorder in Pd-intercalated ErTe3

“…The area within these hysteresis loops is quite small, suggesting that vortex pinning is weak in this material, even at the largest x values. However, it should be noticed that this signal is complicated by the presence of antiferromagnetic order of the localized rare-earth moments 23,44 which produces a large background in the susceptibility measurement.…”

Multiple magnetic-phase transitions and critical behavior of charge-density wave compound TbTe3

“…3 The unique feature of RETe 3 compounds is the multiple CDW transitions at different temperatures [7][8][9][10][11][12] with the coexistence of long-range magnetic order (LRMO) below 10K. [13][14][15] TbTe 3 is the most studied compound from the family of RETe 3 . It has a CDW as a stable ground state at room temperature and undergoes two more CDW phase transitions observed at 41 K 3 and 5 K. 7 Notably, in TbTe 3 , a third CDW phase coexists with the magnetic order at ∼5 K. Ru et al 2 firstly revealed the multiple magnetic phase transitions in TbTe 3 by magnetization, heat-capacity, and electrical resistivity measurements.…”

Quantum oscillations with magnetic hysteresis observed in CeTe$_{3}$ thin films

“…Due to the highly 2D electrical transport, the material forms an incommensurate charge density wave (CDW) from well above room temperature, which has been studied extensively [25][26][27][28][29][30][31] . a) Electronic mail: niimi@phys.sci.osaka-u.ac.jp This material is also known to show two magnetic phase transitions at low temperatures 24,32,33 . The first magnetic transition at T N1 = 3.1 K is understood to be from a paramagnetic state to an antiferromagnetic (possibly short range ordering) state.…”

“…In this phase, the magnetic moment at the Ce site is antiferromagnetically coupled and aligned to an easy axis perpendicular to the layer stacking direction. The second magnetic transition is known to be another antiferromagnetic (possibly long range ordering) transition 24,32 at T N2 = 1.3 K. Unlike the case of the first transition, a clear peak in the heat capacity has been observed below T N2 and the magnetic moment is still aligned to the in-plane direction (called non-parallel easy axis), but different from the easy axis in the first transition 33 . Nevertheless, the details of these magnetic ordering states are poorly understood.…”

“…Although the CeTe structure is halfmetallic on its own, the high conductivity between the two Te sheets gives rise to a highly metallic temperature dependence in CeTe 3 32 . There are two resistivity changes in the low temperature region: the first resistivity drop at T = 2.7 K, and the second resistivity kink structure at T = 1.3 K. These behaviors are consistent with the anomalies observed in bulk CeTe 3 resistivity measurements, which correspond to the two magnetic phase transitions at T N1 = 3.1 K and T N2 = 1.3 K 24,32 . The resistivity at room temperature of this device is 81.3 µΩ•cm, resulting in the residual resistivity ratio (RRR) of 59.2 with respect to ρ(T = 1.5 K).…”