Erratum: Two-dimensional spin-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:math>rectangular Heisenberg antiferromagnets: Simulation and experiment [Phys. Rev. B<b>84</b>, 104442 (2011)]

Keith, Brian; Landee, C. P.; Valleau, T.; Turnbull, Mark M.; Harrison, N. M.

doi:10.1103/physrevb.84.229901

Cited by 11 publications

(15 citation statements)

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“…The resulting values of J, independently obtained by means of the aforementioned techniques, are in excellent agreement within experimental error. Additionally, the results of DC susceptibility and magnetic specific heat were analyzed in terms of a possible rectangular rather than a square magnetic in-plane structure [57,58] and are both fully consistent with the square-lattice case.…”

Section: Discussionmentioning

confidence: 76%

“…The existence of two distinct pyrazine molecules in the unit cell allows for the possibility of a rectangular magnetic lattice in which the exchange strengths (J and αJ, 0 α 1) along the a and b axes are different. This possibility has been tested by comparing the susceptibility data to the susceptibilities of a rectangular 2D QHAF [57,58] for various values of J and α. The square-lattice (α = 1) case gives by far the best fit and it is possible to rule out any rectangular contribution with α < 0.96.…”

Section: Resultsmentioning

confidence: 99%

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Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Opherden¹,

Nizar²,

Richardson³

et al. 2020

Phys. Rev. B

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We report on a comprehensive characterization of the newly synthesized Cu 2+-based molecular magnet [Cu(pz) 2 (2-HOpy) 2 ](PF 6) 2 (CuPOF), where pz = C 4 H 4 N 2 and 2-HOpy = C 5 H 4 NHO. From a comparison of theoretical modeling to results of bulk magnetometry, specific heat, μ + SR, ESR, and NMR spectroscopy, this material is determined as an excellent realization of the two dimensional square-lattice S = 1 2 antiferromagnetic Heisenberg model with a moderate intraplane nearest-neighbor exchange coupling of J/k B = 6.80(5) K, and an extremely small interlayer interaction of about 1 mK. At zero field, the bulk magnetometry reveals a temperature-driven crossover of spin correlations from isotropic to XY type, caused by the presence of a weak intrinsic easy-plane anisotropy. A transition to long-range order, driven by the low-temperature XY anisotropy under the influence of the interlayer coupling, occurs at T N = 1.38(2) K, as revealed by μ + SR. In applied magnetic fields, our 1 H-NMR data reveal a strong increase of the magnetic anisotropy, manifested by a pronounced enhancement of the transition temperature to commensurate long-range order at T N = 2.8 K and 7 T.

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Section: Discussionmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Opherden¹,

Nizar²,

Richardson³

et al. 2020

Phys. Rev. B

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“…19,20 We consider that this square lattice of spin-1/2 Cu 2+ ions which interact with each other via two orthogonal superexchange pathways is a spin-1/2 QHAF. 21 This function has been formulated for the Heisenberg AF rectangular model using a modified Padé rational approximation to Curie's law in powers of J/T. 21 This function has been formulated for the Heisenberg AF rectangular model using a modified Padé rational approximation to Curie's law in powers of J/T.…”

Section: Magnetic Characterizationmentioning

confidence: 99%

“…21 Assuming a certain percentage χ P of residual paramagnetic contribution, it is possible to write (this analytical expression was provided to us by M. M. Turnbull): 21 Assuming a certain percentage χ P of residual paramagnetic contribution, it is possible to write (this analytical expression was provided to us by M. M. Turnbull):…”

Section: Magnetic Characterizationmentioning

confidence: 99%

Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO₆

et al. 2015

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The BaLaCuSbO(6) double perovskite has been successfully synthesized by solid state reaction under an air atmosphere. Its structure was refined using powder neutron diffraction in the monoclinic space group I2/m with a 4% antisite disorder on the B cations. Magnetic measurements give signs of 2D-antiferromagnetic behaviour with TN around 64 K. The Jahn-Teller distortion produced by Cu(2+) ions favours a crystallographic tetragonal distortion and consequently the in-plane super-superexchange antiferromagnetic interactions, J(90°), are favoured over the in-plane J(180°) antiferromagnetic exchange interactions. Both, J and J' magnetic interactions have been evaluated according to a Heisenberg antiferromagnetic rectangular model using an approximation to Curie's law in powers of J/T, being |J| around 10 times stronger than |J'|.

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“…The absence of corresponding theoretical predictions and difficulties with preparation of such materials did not allow finding proper experimental realizations. A few realizations of SASL with spin 1/2 appeared only recently [4,5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Magneto-Structural Correlations in Low-Dimensional Quantum Magnets Cu(en)Cl₂and Cu(tn)Cl₂

et al. 2018

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The present work is focused on the investigation of magneto-structural correlations in Cu(en)Cl2 and Cu(tn)Cl2. A comparative study of powder susceptibility and magnetization of both compounds revealed that the replacement of tn by en ligand did not affect single-ion properties. On the other hand, the structure modification led to significant reduction of magnetic interactions as well as lowering the crystal symmetry. The impact of the high pressure on magnetic properties of the compounds is discussed.

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Erratum: Two-dimensional spin-12rectangular Heisenberg antiferromagnets: Simulation and experiment [Phys. Rev. B84, 104442 (2011)]

Cited by 11 publications

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Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO₆

Experimental Study of Magneto-Structural Correlations in Low-Dimensional Quantum Magnets Cu(en)Cl₂and Cu(tn)Cl₂

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Erratum: Two-dimensional spin-12rectangular Heisenberg antiferromagnets: Simulation and experiment [Phys. Rev. B84, 104442 (2011)]

Cited by 11 publications

References 0 publications

Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Extremely well isolated two-dimensional spin- 12 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF

Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO6

Experimental Study of Magneto-Structural Correlations in Low-Dimensional Quantum Magnets Cu(en)Cl2and Cu(tn)Cl2

Contact Info

Product

Resources

About

Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO₆

Experimental Study of Magneto-Structural Correlations in Low-Dimensional Quantum Magnets Cu(en)Cl₂and Cu(tn)Cl₂