01783nas a2200169   4500008004100000022001400041245006900055210006800124260007100192300001400263490000800277520117600285100002601461700001401487700001901501856009301520       2014                        eng d  a1932-744700aLarge increase in the energy product of Fe3Se4 by Fe-site doping0 aLarge increase in the energy product of Fe3Se4 by Fesite doping  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a4016-40220 v1183 a<p>Fe3Se4 possesses a large coercivity at room temperature. At lower temperature, a coercivity value up to 40 kOe has been achieved. However, due to a relatively lower saturation magnetization value, the energy product of this material is not suitable for its use as rare-earth-free hard magnetic material. Although the anisotropy and magnetic structure of Fe3Se4 have been topics of research, there is no attempt to increase the energy product. Here, we report the synthesis of Fe3-xMnxSe4 (x = 0.01-0.2) nanorods. As required for practical applications, after doping, the Curie temperature remains unchanged; however, at optimum (x = 0.03) doping of manganese ions, the magnetization of the host matrix increases significantly from 4.84 to 7.54 emu/g. The corresponding energy product value was found to be increased by more than 130%. At low temperature (10 K) the energy product shows almost a 2 order of magnitude increase (similar to 0.12 MG Oe), which makes it valuable for many low temperature applications. This improvement is a vital step for its use in some of the household applications where a large volume and relatively lower energy product are needed.</p>1 aBishwas, Mousumi, Sen1 aDas, Raja1 aPoddar, Pankaj  uhttps://library.ncl.res.in/content/large-increase-energy-product-fe3se4-fe-site-doping-0