R. D. Johnson

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cond-mat.str-el2025

Single-ion anisotropy driven chiral magnetic order in a spin-1 antiferromagnetic chain

S. Vaidya, S. P. M. Curley, P. Manuel +17

Chirality in magnetic systems gives rise to a wide range of exotic phenomena, yet its influence in $S = 1$ chains remains largely unexplored. Here, we present a comprehensive experim…

cond-mat.str-el2025

Magnetoelastic dynamics of the "spin Jahn-Teller" transition in CoTi $_{2}$ O $_{5}$

K. Guratinder, R. D. Johnson, D. Prabhakaran +10

CoTi $_{2}$ O $_{5}$ has the paradox that low temperature static magnetic order is incompatible with the crystal structure owing to a mirror plane that exactly frustrates magnetic int…

cond-mat.str-el2024

Magnetic properties of a staggered $S = 1$ chain Ni(pym)(H $_{2}$ O) $_{2}$ (NO $_{3}$ ) $_{2}$ with an alternating single-ion anisotropy direction

S. Vaidya, S. P. M. Curley, P. Manuel +13

Materials composed of spin-1 antiferromagnetic (AFM) chains are known to adopt complex ground states which are sensitive to the single-ion-anisotropy (SIA) energy ( $D$ ), and intrac…

cond-mat.str-el2024

Pseudo-easy-axis anisotropy in antiferromagnetic $S = 1$ diamond-lattice systems Ni $X_{2}$ (pym) $_{2}$

S. Vaidya, A. HernÃ¡ndez-MeliÃ¡n, J. P. Tidey +12

We investigate the magnetic properties of $S = 1$ antiferromagnetic diamond lattice, Ni $X_{2}$ (pyrimidine) $_{2}$ ( $X$ = Cl, Br), hosting a single-ion anisotropy (SIA) orientation whi…

Single-ion anisotropy driven chiral magnetic order in a spin-1 antiferromagnetic chain

Magnetoelastic dynamics of the "spin Jahn-Teller" transition in CoTi2​O5​

Magnetic properties of a staggered S=1 chain Ni(pym)(H2​O)2​(NO3​)2​ with an alternating single-ion anisotropy direction

Pseudo-easy-axis anisotropy in antiferromagnetic S=1 diamond-lattice systems NiX2​(pym)2​

Magnetoelastic dynamics of the "spin Jahn-Teller" transition in CoTi $_{2}$ O $_{5}$

Magnetic properties of a staggered $S = 1$ chain Ni(pym)(H $_{2}$ O) $_{2}$ (NO $_{3}$ ) $_{2}$ with an alternating single-ion anisotropy direction

Pseudo-easy-axis anisotropy in antiferromagnetic $S = 1$ diamond-lattice systems Ni $X_{2}$ (pym) $_{2}$