Antiferromagnetic order above antiferroquadrupolar transition temperature of HoB2C2

Anomalous Magnetic Ordering Phenomena in Tetragonal TbB2C2Observed by Neutron Diffraction

“…17,18) Note that a similar broad magnetic scattering was also observed in TbB 2 C 2 in neutron powder diffraction experiments. 12) The authors think, therefore, that to understand characteristics in the magnetic ordered state under H ¼ 0 in TbB 2 C 2 , detailed observation of the long periodic state in TbB 2 C 2 , and comparing it with those in HoB 2 C 2 and ErB 2 C 2 are important.…”

Unusual antiferromagnetic properties affected by antiferroquadrupolar interaction in TbB2C2

“…Note that the satellite peak corresponding to k L is accompanied by the characteristic diffuse scattering which is common to the AFM ordered state in HoB 2 C 2 [5,6]. In the present work, we provide details of the satellite and diffuse scattering in TbB 2 C 2 studied by neutron scattering under high energy resolution condition.…”

Y-dilution Effects on Magnetic Properties of Anomalous Antiferromagnet TbB2C2

“…2-7) However, the new phase named IV between T Q and T N in HoB 2 C 2 is an AFM state as is clearly evidenced by neutron diffraction. [21][22][23] TbB 2 C 2 is an antiferromagnet of T N ¼ 21:7 K, although the coexistent phases of AFQ and AFM order are induced by magnetic fields. 14,17) The H{T phase diagrams of TbB 2 C 2 have some resemblance with those in Ce 0:7 La 0:3 B 6 where there exists only phase IV.…”