@article { ISI:000346168600001,
	title = {Modification of crystal anisotropy and enhancement of magnetic moment of Co-doped SnO2 thin films annealed under magnetic field},
	journal = {Nanoscale Research Letters},
	volume = {9},
	year = {2014},
	month = {NOV},
	pages = {635},
	publisher = {SPRINGER},
	address = {233 SPRING ST, NEW YORK, NY 10013 USA},
	abstract = {<p>Co-doped SnO2 thin films were grown by sputtering technique on SiO2/Si(001) substrates at room temperature, and then, thermal treatments with and without an applied magnetic field (H-TT) were performed in vacuum at 600 degrees C for 20 min. H-TT was applied parallel and perpendicular to the substrate surface. Magnetic M(H) measurements reveal the coexistence of a strong antiferromagnetic (AFM) signal and a ferromagnetic (FM) component. The AFM component has a N,el temperature higher than room temperature, the spin axis lies parallel to the substrate surface, and the highest magnetic moment m =7 mu(B)/Co at. is obtained when H-TT is applied parallel to the substrate surface. Our results show an enhancement of FM moment per Co+2 from 0.06 to 0.42 mu(B)/Co at. for the sample on which H-TT was applied perpendicular to the surface. The FM order is attributed to the coupling of Co+2 ions through electrons trapped at the site of oxygen vacancies, as described by the bound magnetic polaron model. Our results suggest that FM order is aligned along [101] direction of Co-doped SnO2 nanocrystals, which is proposed to be the easy magnetization axis.</p>},
	keywords = {Antiferromagnetism, Crystal anisotropy, Diluted magnetic oxide, Ferromagnetism, Magnetic anisotropy, Magnetic moment, Spin axis, thin film},
	issn = {1556-276X},
	doi = {10.1186/1556-276X-9-635},
	author = {Loya-Mancilla, Sagrario M. and Poddar, Pankaj and Das, Raja and Ponce, Hilda E. Esparza and Templeton-Olivares, Ivan L. and Solis-Canto, Oscar O. and Ornelas-Gutierrez, Carlos E. and Espinosa-Magaa, Francisco and Olive-Mendez, Sion F.}
}
@article { ISI:000375255500006,
	title = {Study of magnetic entropy and heat capacity in ferrimagnetic Fe3Se4 nanorods},
	journal = {Journal Of Physics D-Applied Physics},
	volume = {49},
	number = {19},
	year = {2016},
	month = {MAY},
	pages = {195003},
	publisher = {IOP PUBLISHING LTD},
	address = {TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND},
	abstract = {<p>Change in the magnetic entropy and specific heat capacity in Fe3Se4 nanorods synthesized by a wet-chemical method in a broad temperature (215-340 K) and magnetic field range (0-60 k Oe) was studied. The isothermal magnetic entropy change (Delta S-M) is estimated by an indirect method from the isothermal magnetization curves measured in this temperature range. S-M(max) of -46 x 10(-2) J kg(-1).K-1 was obtained at similar to 317 K when the field was changed from 0 to 60 kOe. The maximum in the isothermal magnetic entropy change (Delta S-M) is observed in close proximity to TC (similar to 323 K), which is linked to the order-disorder transition. The nature of this transition was analyzed by universal curve behavior. The temperature and magnetic field dependence of specific heat capacity was studied and analyzed to estimate the adiabatic temperature change (Delta T-ad). The magnetic entropy change of Fe3Se4 nanoparticles is found to be comparable with similar ferrite and manganite nanoparticle systems and a broad operating temperature window of similar to 30 K was observed around room temperature.</p>},
	keywords = {heat capacity, iron selenide, Magnetic anisotropy, magnetic entropy, order-disorder phase transition},
	issn = {0022-3727},
	doi = {10.1088/0022-3727/49/19/195003},
	author = {Sen Bishwas, Mousumi and Poddar, Pankaj}
}
