论文标题
磁掺杂的Claringbullite系列中的磁有序和Kagome量子自旋液态
Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series
论文作者
论文摘要
中子散射测量已在斜珠和Zn掺杂的claringbullite（Zn $ _x $ _x $ cu $ _ {4-x} $（od）$ _ {6} $ fcl）上进行了中子散射测量。在低温下，Claringbullite Cu $ _4 $（OD）$ _ {6} $ fcl形成了带有远距离磁性和类似自旋波的磁性激发的扭曲的Pyrochlore晶格。部分Zn掺杂导致名义Zncu $ _3 $（OD）$ _ {6} $ fcl化合物，一种几何沮丧的旋转1/2 kagome Anterromagnet，没有显示出向磁性的过渡到1.5 k的过渡。
Neutron scattering measurements have been performed on deuterated powder samples of claringbullite and Zn-doped claringbullite (Zn$_x$Cu$_{4-x}$(OD)$_{6}$FCl). At low temperatures, claringbullite Cu$_4$(OD)$_{6}$FCl forms a distorted pyrochlore lattice with long-range magnetic order and spin-wave-like magnetic excitations. Partial Zn doping leads to the nominal ZnCu$_3$(OD)$_{6}$FCl compound, a geometrically frustrated spin-1/2 kagome antiferromagnet that shows no transition to magnetic order down to 1.5 K. The magnetic excitations form a gapless continuum, a signature of fractional excitations in a quantum spin liquid.
