R. H. Colman

activity

20242026

collaborators

3 papers

cond-mat.str-el2026

Ultralow-Field Triplon Condensation in a Spin-Ladder Magnet

Ankit Labh, Ross H. Colman, Jakub Šebesta +12

We realise the first ultralow-field Bose-Einstein condensation of triplons in a spin-ladder magnet, uncovering a quantum critical point at only $μ_{0} H_{c 1} = 0.17$ T in Henmilite ($\…

cond-mat.str-el2025

Random singlet physics in the $S = \frac{1}{2}$ pyrochlore antiferromagnet NaCdCu $_{2}$ F $_{7}$

Andrej Kancko, Hironori Sakai, Cinthia Antunes Corrêa +7

We report a random singlet ground state in the $S = \frac{1}{2}$ Heisenberg pyrochlore antiferromagnet NaCdCu $_{2}$ F $_{7}$ . Cationic Na $^{+}$ /Cd $^{2 +}$ disorder on the pyrochlore $A$ site…

cond-mat.str-el2024

Glassy disordered ground states in the frustrated pyrochlore and fluorite antiferromagnets NaCd $M_{2}$ F $_{7}$ ( $M$ = Ni $^{2 +}$ , Mn $^{2 +}$ )

Andrej Kancko, Cinthia Antunes Corrêa, Ross Harvey Colman

We report the crystal structures, magnetic and thermodynamic properties of two magnetically frustrated $A$ ' $A$ " $M_{2}$ F $_{7}$ -type antiferromagnets, NaCdNi $_{2}$ F $_{7}$ and NaCdMn $_{2}$ F $_{7}$ …

Ultralow-Field Triplon Condensation in a Spin-Ladder Magnet

Random singlet physics in the S=21​ pyrochlore antiferromagnet NaCdCu2​F7​

Glassy disordered ground states in the frustrated pyrochlore and fluorite antiferromagnets NaCdM2​F7​ (M = Ni2+, Mn2+)

Random singlet physics in the $S = \frac{1}{2}$ pyrochlore antiferromagnet NaCdCu $_{2}$ F $_{7}$

Glassy disordered ground states in the frustrated pyrochlore and fluorite antiferromagnets NaCd $M_{2}$ F $_{7}$ ( $M$ = Ni $^{2 +}$ , Mn $^{2 +}$ )