%0 Journal Article %1 PhysRevB.103.205131 %A Zvyagin, S A %A Ponomaryov, A N %A Ozerov, M %A Schulze, E %A Skourski, Y %A Beyer, R %A Reimann, T %A Zviagina, L I %A Green, E L %A Wosnitza, J %A Sheikin, I %A Bouillot, P %A Giamarchi, T %A Wikara, J L %A Turnbull, M M %A Landee, C P %D 2021 %I American Physical Society %J Phys. Rev. B %K b %N 20 %P 205131 %R 10.1103/PhysRevB.103.205131 %T Magnetic properties of a quantum spin ladder in proximity to the isotropic limit %U https://journals.aps.org/prb/pdf/10.1103/PhysRevB.103.205131 %V 103 %X We report on the synthesis, crystal structure, magnetic, thermodynamic, and electron-spin-resonance properties of the coordination complex Cu2(pz)3(4−HOpy)4(ClO4)4 (pz=pyrazine; 4-HOpy=4-hydroxypyridine). This material is identified as a spin-1/2 Heisenberg ladder system with exchange-coupling parameters Jrung/kB=12.1(1)K and Jleg/kB=10.5(3)K Jrung/Jleg=1.15(4). For single crystals our measurements revealed two critical fields, μ0Hc1=4.63(5)T and μ0Hc2=22.78(5)T (for H∥a∗), separating the gapped spin-liquid, gapless Tomonaga-Luttinger-liquid, and fully spin-polarized phase. No signature of a field-induced transition into a magnetically ordered phase was found at temperatures down to 450 mK. The material bridges an important gap by providing an excellent physical realization of an almost isotropic spin-1/2 strong-rung Heisenberg ladder system with modest exchange-coupling energy and critical-field scales.

@article{PhysRevB.103.205131, abstract = {We report on the synthesis, crystal structure, magnetic, thermodynamic, and electron-spin-resonance properties of the coordination complex [Cu2(pz)3(4−HOpy)4](ClO4)4 (pz=pyrazine; 4-HOpy=4-hydroxypyridine). This material is identified as a spin-1/2 Heisenberg ladder system with exchange-coupling parameters Jrung/kB=12.1(1)K and Jleg/kB=10.5(3)K [Jrung/Jleg=1.15(4)]. For single crystals our measurements revealed two critical fields, μ0Hc1=4.63(5)T and μ0Hc2=22.78(5)T (for H∥a∗), separating the gapped spin-liquid, gapless Tomonaga-Luttinger-liquid, and fully spin-polarized phase. No signature of a field-induced transition into a magnetically ordered phase was found at temperatures down to 450 mK. The material bridges an important gap by providing an excellent physical realization of an almost isotropic spin-1/2 strong-rung Heisenberg ladder system with modest exchange-coupling energy and critical-field scales.}, added-at = {2021-10-14T17:23:19.000+0200}, author = {Zvyagin, S A and Ponomaryov, A N and Ozerov, M and Schulze, E and Skourski, Y and Beyer, R and Reimann, T and Zviagina, L I and Green, E L and Wosnitza, J and Sheikin, I and Bouillot, P and Giamarchi, T and Wikara, J L and Turnbull, M M and Landee, C P}, biburl = {https://www.bibsonomy.org/bibtex/23c54cd589c86ffab68f52afb3c2b86b1/ctqmat}, day = 18, description = {Magnetic properties of a quantum spin ladder in proximity to the isotropic limit}, doi = {10.1103/PhysRevB.103.205131}, interhash = {f57ae5c849b75b221fa848a838883ac6}, intrahash = {3c54cd589c86ffab68f52afb3c2b86b1}, journal = {Phys. Rev. B}, keywords = {b}, month = {05}, number = 20, numpages = {7}, pages = 205131, publisher = {American Physical Society}, timestamp = {2023-03-14T15:00:29.000+0100}, title = {Magnetic properties of a quantum spin ladder in proximity to the isotropic limit}, url = {https://journals.aps.org/prb/pdf/10.1103/PhysRevB.103.205131}, volume = 103, year = 2021 }