High-frequency ESR studies of colossal magnetoresistance system Cu(Cr1−xZrx)2S4

Crystal structure, Raman scattering and magnetic properties of CuCr2−Zr Se4 and CuCr2−Sn Se4 selenospinels

“…CMR effect has been observed in chromium-based chalcogenide materials with spinel structures, ACr 2 Q 4 (A = transition metal, Q = S, Se) [3,7], e.g., Cu-and Cr-based systems, CuCr 2 S 4 , CuCr 2 Se 4 and CuCr 2 Te 4 , which are metallic and ferromagnetic with Curie temperatures (T C ) of ~380, ~420, and ~300 K, respectively [8][9][10]. The magnetism in these compounds can be attributed to the double exchange between Cr 3+ and Cr 4+ [8].…”

Antimony valence and the magnetization processes in the spinels (Cu)[CrSb]Se4

“…coexistence of ferromagnetism and ferroelectricity [1,2], complex spin order and spin dimerization [3][4][5], spin-orbital liquid [6], orbital glass [7], heavy-fermion properties [8], large magnetostriction and negative thermal expansion [9], giant magnetoresistance [10][11][12][13][14][15][16][17], spin glass state [16][17][18][19][20][21][22][23][24][25][26][27][28] and thermoelectric effect [29]. One has to admit that the giant magnetoresistance effect and spin glass state effect can be useful in the switching facilities and spintronics.…”

Development of a millimeter and submillimeter wave ESR measurement system

“…Although we have studied many magnetic materials with fascinating properties [2,5,6,7,8], only an example [9] is presented in this digest. (CPA) 2 CuBr 4 belongs to a spin ladder system with two legs [10].…”