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.
Beschreibung
Magnetic properties of a quantum spin ladder in proximity to the isotropic limit
%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
}