Atomic and magnetic structure of fcc Fe/Cu(100)

Magnetic susceptibility of Fe/Cu multilayers: Ferromagnetic, antiferromagnetic, and spin-glass phases

“…[1][2][3][4][5][6][7][8][9][10] Experimental results and first-principle magnetic structure calculations confirmed that a rich variety of magnetic configurations can be stabilized in fcc ␥-Fe with a lattice constant range near that of fcc Cu. [11][12][13][14][15] It has also been shown that the magnetic anisotropy energies are rather different for the ferromagnetic and various antiferromagnetic configurations in fcc Fe. 11,12 Fe/Cu multilayers also present antiferromagnetic exchange coupling which is accompanied by moderate magnetoresistive and magneto-optic effects for chemical modulation periods in the nanometer length scale.…”

Peculiar Properties of Ultrathin fcc Iron Films Epitaxially Grown on Cu(001)

“…It has been established very well theoretically [1][2][3][4] that two surface monolayers of the Fe films are coupled ferromagnetically, while the inner layers are ordered layer-by-layer antiferromagnetically. It is interesting to check which tendency: surface ferromagnetism or antiferromagnetism inside the film is stronger in the case of ultrathin Fe films of 2, 3, or 4 monolayers of thickness.…”

“…Electronic structure and the magnetic properties of ultrathin fcc Fe films epitaxially grown on Cu(100) substrates are a subject of interest in the last years [1][2][3][4][5][6][7][8][9]. It has been established very well theoretically [1][2][3][4] that two surface monolayers of the Fe films are coupled ferromagnetically, while the inner layers are ordered layer-by-layer antiferromagnetically.…”

On Electronic Structure and Magnetic Behaviour of FCC Iron Films Epitaxially Grown on Cu(001)

“…They are of particular interest, because the epitaxially grown fcc Fe films differ in magnetic properties both from the usual bcc phase of iron as well as the high temperature fcc Fe phase. Moreover, it has been established very well both theoretically [1][2][3] as well as experimentally [4][5][6][7][8] that the surface monolayers of this system are coupled ferromagnetically, while there is the long-lasting controversy concerning the magnetic state of the inner layers of the films: first-principles theoretical approaches suggest that the inner layers are ordered layer-by-layer antiferromagnetically but experimental data show that they are unambiguously paramagnetic at room temperature. It is important, however, *e-mail: wojne@ifpan.edu.pl (737) that both results do not exclude each other, because -as it has been established with the conversion-electron Mössbauer spectroscopy -the fcc Fe films have an antiferromagnetic state below TN = 65 K and above this temperature -they are magnetically disordered [4].…”

“…Magnetic properties of ultrathin fcc Fe films epitaxially grown on Cu(001) substrates are a subject of a quite substantial number of experimental and theoretical studies [1][2][3][4][5][6][7][8]. They are of particular interest, because the epitaxially grown fcc Fe films differ in magnetic properties both from the usual bcc phase of iron as well as the high temperature fcc Fe phase.…”