DIMPY
This material is unique: it is the only compound to date that hosts perfect ladders composed of weakly coupled spin chains. While it still remains an antiferromagnetic spin ladder with the gapped ground state, even qualitatively many properties are different compared to the similar strong-rung material BPCB. The magnetized state of DIMPY is the only realization of Tomonaga-Luttinger spin liquid with attractive interactions between the fermions. Still, numerical simulations are able to fully capture the physics of this material thanks to the simple Hamiltonian. Studying the scaling of static and spectral properties of magnetized DIMPY was a vast field of work recently.
Another interesting aspect of DIMPY is the possibility to create site-depleted spin ladders. One just needs to replace the magnetic copper ion with non-magnetic zinc. Doing so creates completely new degrees of freedom - clusters of staggered magnetization around the impurity position. Two-leg topology preserves the continuity of the ladder, and large correlation length guarantees substantial overlap of the clusters even if they are rare. Thus, we can create a system of emergent strongy interacting objects in one dimension by simple chemical modification of DIMPY.
Yu. V. Krasnikova, V. N. Glazkov, A. Ponomaryov, S. Zvyagin, K. Yu. Povarov, S. Galeski and A. Zheludev, Electron spin resonance study of spin relaxation in the strong-leg spin ladder with non-magnetic dilution, external pagePhys. Rev. B 100, 144446 (2019); external pagearXiv:1907.02284
M. Jeong, H. Mayaffre, C. Berthier, D. Schmidiger, A. Zheludev, and M. Horvatic, Magnetic-Order Crossover in Coupled Spin Ladders, external pagePhys. Rev. Lett. 118, 167206 (2017)
M. Jeong, D. Schmidiger, H. Mayaffre, M. Klanjšek, C. Berthier, W. Knafo, G. Ballon, B. Vignolle, S. Krämer, A. Zheludev, and M. Horvatić, Dichotomy between Attractive and Repulsive Tomonaga-Luttinger Liquids in Spin Ladders, external pagePhys. Rev. Lett. 117, 106402 (2016); external pagearXiv:1604.05252
D. Schmidiger, K. Yu. Povarov, S. Galeski, N. Reynolds, R. Bewley, T. Guidi, J. Ollivier, A. Zheludev, Emergent interacting spin islands in a depleted strong-leg Heisenberg ladder, external pagePhys. Rev. Lett. 116, 257203 (2016); external pagearXiv:1603.00070
V. N. Glazkov, M. Fayzullin, Y. Krasnikova, G. Skoblin, D. Schmidiger, S. Mühlbauer, A. Zheludev, ESR study of the spin ladder with uniform Dzyaloshinskii-Moria interaction, external pagePhys. Rev. B 92, 184403 (2015), external pagearXiv:1507.02503
K. Yu. Povarov, D. Schmidiger, N. Reynolds, A. Zheludev, R. Bewley, Scaling of temporal correlations in an attractive Tomonaga-Luttinger spin liquid, external pagePhys. Rev. B 91, 020406(R) (2015), external pagearXiv:1406.6876
M. Jeong, H. Mayaffre, C. Berthier, D. Schmidiger, A. Zheludev, M. Horvatic, Attractive Tomonaga-Luttinger Liquid in a Quantum Spin Ladder, external pagePhys. Rev. Lett. 111, 106404 (2013); external pagearXiv:1307.0103
D. Schmidiger, P. Bouillot, T. Guidi, R. Bewley, C. Kollath, T. Giamarchi, A. Zheludev, Spectrum of a magnetized strong-leg quantum spin ladder, external pagePhys. Rev. Lett. 111, 107202 (2013); external pagearXiv:1306.4216
D. Schmidiger, P. Bouillot, G. Ehlers, S. Mühlbauer, A. M. Tsvelik, C. Kollath, T. Giamarchi and A. Zheludev, Symmetric and asymmetric excitations of a strong-leg quantum spin ladder, external pagePhys. Rev. B 88, 094411 (2013); external pagearXiv:1306.1671
D. Schmidiger, P. Bouillot, S. Muhlbauer, S. Gvasaliya, C. Kollath, T. Giamarchi, A. Zheludev, Spectral and thermodynamic properties of a strong-leg quantum spin ladder, external pagePhys. Rev. Lett. 108, 167201 (2012) ; external pagearXiv:1112.4307v1
D. Schmidiger, S. Muehlbauer, S. N. Gvasaliya, T. Yankova, A. Zheludev, Long-lived magnons throughout the Brillouin zone of the strong-leg spin ladder (C7D10N)2CuBr4, external pagePhys. Rev. B 84,144421 (2011); external pagearXiv:1105.4832v1