@article {49002,
	title = {Robust spin liquidity in 2D metal-organic framework Cu3 (HHTP)2 with S=1/2 kagome lattice},
	journal = {Chemistry- a european journal},
	volume = {30},
	year = {2024},
	month = {JAN },
	type = {Article},
	abstract = {<p>
	On one hand electron or hole doping of quantum spin liquid (QSL) may unlock high-temperature superconductivity and on the other hand it can disrupt the spin liquidity, giving rise to a magnetically ordered ground state. Recently, a 2D MOF, Cu-3(HHTP)(2) (HHTP - 2,3,6,7,10,11-hexahydroxytriphenylene), containing Cu(II) S = 1/2 frustrated spins in the Kagome lattice is emerging as a promising QSL candidate. Herein, we present an elegant in situ redox-chemistry strategy of anchoring Cu-3(HHTP)(2) crystallites onto diamagnetic reduced graphene oxide (rGO) sheets, resulting in the formation of electron-doped Cu-3(HHTP)(2)-rGO composite which exhibited a characteristic semiconducting behavior (5 K to 300 K) with high electrical conductivity of 70 S . m(-1) and a carrier density of similar to 1.1 x 10(18) cm(-3) at 300 K. Remarkably, no magnetic transition in the Cu-3(HHTP)(2)-rGO composite was observed down to 1.5 K endorsing the robust spin liquidity of the 2D MOF Cu-3(HHTP)(2). Specific heat capacity measurements led to the estimation of the residual entropy values of 28 \% and 34 \% of the theoretically expected value for the pristine Cu-3(HHTP)(2) and Cu-3(HHTP)(2)-rGO composite, establishing the presence of strong quantum fluctuations down to 1.5 K (two times smaller than the value of the exchange interaction J).</p>
},
	keywords = {2D Metal-organic Framework, Electron doping, Reduced graphene oxide, Spin Liquid, Spin-frustration},
	issn = {0947-6539},
	doi = {10.1002/chem.202303718},
	author = {Ninawe, Pranay and Jain, Anil and Sangole, Mayur and Anas, Mohd and Ugale, Ajay and Malik, Vivek K. and Yusuf, Seikh M. and Singh, Kirandeep and Ballav, Nirmalya}
}
