Refine your search:     
Report No.
 - 

Powder neutron diffraction study of HoCoGa$$_{5}$$

Kobayashi, Riki; Kaneko, Koji  ; Wakimoto, Shuichi ; Chi, S.*; Sanada, Naoyuki*; Watanuki, Ryuta*; Suzuki, Kazuya*

We have studied the magnetic structure of HoCoGa$$_5$$ which shows successive magnetic phase transition at $$T_{N1}$$ = 9.6 K and $$T_{N2}$$ = 7.5 K by using powder neutron diffraction. The data indicates magnetic reflection peaks with propagation vector $$q_L$$ = (1/2 0 0.35) at $$T_{N2} < T < T_{N1}$$ (AFIC phase), and then the propagation vector changes to $$q_{C}$$ = (1/2 0 1/2) below $$T_{N2}$$ (AFC phase). In addition, the temperature dependence of magnetic reflection intensity shows temperature hysteresis at $$T_{N2}$$. These results suggest that the transition at $$T_{N2}$$ is an incommensurate to commensurate first order transition. From our analysis, we have decided that the magnetic structure at 3.5 K is collinear antiferromagnetic one with propagation vector $$q_C$$, and magnitude of magnetic moment is 8.6(2) $$mu_B$$ along the $$c$$-axis. This structure is same as TbCoGa$$_5$$ which is proposed existence of component separated magnetic order due to the competition between magnetic and quadrupolar interactions.

Accesses

:

- Accesses

InCites™

:

Percentile:30.06

Category:Physics, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.