Relation of coercivity to net magnetization in ferrimagnetically ordered Co/Gd multilayers

Abstract

Magnetization reversal processes in ferrimagnetically ordered Co/Gd multilayers were studied by means of the magneto-optical Kerr effect. Temperature dependencies of coercive field of the multilayers have been determined in the wide temperature region 25<T<300 K. An increase of temperature can cause both an enhancement and diminution of coercivity in the Co/Gd multilayers examined. Different temperature behavior of coercivity is explained by taking into account the temperature variation of net magnetization in the ferrimagnetically ordered Co/Gd multilayers.

In-plane magnetotransport properties of Permalloy∕gadolinium∕Permalloy trilayers

“…[1][2][3][4][5][6][7][8][9][10][11] In thin films, magnetic configurations such as in-plane domain walls ͑DWs͒ appear due to the exchange coupling between the Gd and the TMs at the multilayer interfaces. [1][2][3][4][5][6][7][8][9][10][11] In thin films, magnetic configurations such as in-plane domain walls ͑DWs͒ appear due to the exchange coupling between the Gd and the TMs at the multilayer interfaces.…”

Tемпературная зависимость магнитных свойств и магнитополевого поведения тонкопленочных трехслойных Co/Gd/Co систем

“…Значения коэрцитивной силы изучаемых образцов с увеличением температуры от 100 до 300 K уменьшаются. Обнаруженное изменение H C при T > 100 K подобно наблюдаемым для Fe/Gd и Co/Gd образцов в работах [14] и [15], соответственно. Согласно существующим данным, опубликованным в работах [14,15], такая зависимость H C (T ) свидетельствует о ферримагнитном характере изучаемых трехслойных систем, обусловленном изменением суммарного магнитного момента при изменении температуры [15].…”

Cobalt spin arrangement in Co/Nd multilayers with depth-selectively inserted57Fe probe layer

“…Deposition temperature effect on multilayer structure was observed. Magnetization reversal process was also studied in Co/Gd multilayers by means of the magneto-optical Kerr effect [4]. Temperature dependence of coercive field of the multilayers has been determined in the wide temperature region 25 K < T < 300 K. It was observed that an increase of the temperature caused either the enhancement or diminution of coercivity in the examined Co/Gd multilayers depending on bilayer thickness.…”