The Magnetic Structure of Cr2Te3, Cr3Te4, and Cr5Te6.

Magnetic properties and low temperature X-ray studies of the weak ferromagnetic monoclinic and trigonal chromium tellurides Cr5Te8

“…We note that for all chromium tellurides in the composition range CrTe to Cr 2 Te 3 investigated so far the observed ordered magnetic moments derived from saturation magnetization are smaller than the moments calculated using an ionic model. These deviations have been assigned to spin canting [29][30][31][32][33][34], non-collinear spin arrangement [35], or a canted antiferromagnetism [36].…”

Electronic structure ofCr1‐δX(X=S,Te)studied by CrYaji1, Kimura2, Hirai3 et al. 2004Phys. Rev. B20060View full textAdd to dashboardCite

“…10 The magnetic moment induced on the Cr ion for δ=0.25 is close to an integral number of Bohr magnetons, suggesting the existence of mixed valence Cr. 10 However for Cr 2 Te 3 (δ=0.33), the ordered magnetic moment of 2.65 − 2.70µ B , deduced from the neutron diffraction, is much smaller than that calculated using the ionic model, 3µ B , suggesting the itinerant nature of the d electrons.…”

“…2 The ordered magnetic moments evaluated from the magnetization measurements show much smaller values such as 2.4-2.7µ B for the Cr 1−δ Te with δ < 0.1, 2.35µ B for Cr 3 Te 4 (δ=0.25) and 2.0µ B for Cr 2 Te 3 (δ=0.33) than those expected from the ionic model. 3,4,5,6,7,8,9,10,11,12,13,14 According to neutrondiffraction studies, the small value of saturation magnetization is partly explained if we take the spin canting into account for δ = 0.125, 0.167 and 0.25. 10 The magnetic moment induced on the Cr ion for δ=0.25 is close to an integral number of Bohr magnetons, suggesting the existence of mixed valence Cr.…”

“…3,4,5,6,7,8,9,10,11,12,13,14 According to neutrondiffraction studies, the small value of saturation magnetization is partly explained if we take the spin canting into account for δ = 0.125, 0.167 and 0.25. 10 The magnetic moment induced on the Cr ion for δ=0.25 is close to an integral number of Bohr magnetons, suggesting the existence of mixed valence Cr. 10 However for Cr 2 Te 3 (δ=0.33), the ordered magnetic moment of 2.65 − 2.70µ B , deduced from the neutron diffraction, is much smaller than that calculated using the ionic model, 3µ B , suggesting the itinerant nature of the d electrons.…”

Electric‐field modulation of ferromagnetism in hexagonal chromium telluride thin film

“…In the Cr-deficient phases, it is considered that there is an ordering of Cr vacancies in alternate metal layers parallel to the c-plane of the basic NiAs structure; the metal layers along the c-plane consist of alternating stacking of the fully-occupied Cr layer and the Cr vacancy layer. According to the neutron diffraction measurement on Cr 2 Te 3 [17], the Cr magnetic moments in the fully-occupied layer are aligned ferromagnetically, whereas those in the vacancy layer give negligible ferromagnetic contribution, suggesting the antiferromagnetic alignment of Cr moments within the vacancy layer. When we apply an intense electric field, the configuration of mixed valence states of Cr is expected to be changed, resulting in the modification of the magnetic ordering in these alternating layers.…”