TY - JOUR
T1 - Neutron scattering studies of the spin-5/2 antiferromagnetic linear trimer substance SrMn3P4O14
AU - Hase, Masashi
AU - Dönni, Andreas
AU - Ozawa, Kiyoshi
AU - Kitazawa, Hideaki
AU - Sakai, Osamu
AU - Pomjakushin, Vladimir Yu
AU - Keller, Lukas
AU - Kaneko, Koji
AU - Metoki, Naoto
AU - Kakurai, Kazuhisa
AU - Matsuda, Masaaki
AU - Yang, Tao
AU - Cong, Rihong
AU - Lin, Jianhua
PY - 2012
Y1 - 2012
N2 - We studied the spin-5/2 antiferromagnetic (AF) linear trimer substance SrMn3P4O14 using neutron powder diffraction and inelastic neutron scattering (INS) techniques. We determined the magnetic structure below TN1 = 2.2(1) K. Ordered magnetic moments have x and z components. The angle between two neighboring moments in the trimer is 164 or 166° at 1.5 K, indicating that the intra-trimer (J1) interaction is AF as expected. The propagation vector is expressed as k = [0, ky, 0]. The value of ky is 0.317 at 1.5 K, indicating an incommensurate magnetic structure. The value of ky changes abruptly between 1.7 and 1.8 K and reaches values close to 0.33 above 1.8 K, indicating another phase transition at TN2 = 1.75(5) K. We observed plural magnetic excitations. The peak positions are 0.46, 0.68 and 1.02 meV. Our INS results are consistent with those expected in the trimer model. We evaluated the J 1 value as 0.29 meV (3.4 K).
AB - We studied the spin-5/2 antiferromagnetic (AF) linear trimer substance SrMn3P4O14 using neutron powder diffraction and inelastic neutron scattering (INS) techniques. We determined the magnetic structure below TN1 = 2.2(1) K. Ordered magnetic moments have x and z components. The angle between two neighboring moments in the trimer is 164 or 166° at 1.5 K, indicating that the intra-trimer (J1) interaction is AF as expected. The propagation vector is expressed as k = [0, ky, 0]. The value of ky is 0.317 at 1.5 K, indicating an incommensurate magnetic structure. The value of ky changes abruptly between 1.7 and 1.8 K and reaches values close to 0.33 above 1.8 K, indicating another phase transition at TN2 = 1.75(5) K. We observed plural magnetic excitations. The peak positions are 0.46, 0.68 and 1.02 meV. Our INS results are consistent with those expected in the trimer model. We evaluated the J 1 value as 0.29 meV (3.4 K).
UR - https://www.scopus.com/pages/publications/84863341619
U2 - 10.1088/1742-6596/340/1/012066
DO - 10.1088/1742-6596/340/1/012066
M3 - Conference article
AN - SCOPUS:84863341619
SN - 1742-6588
VL - 340
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
M1 - 012066
T2 - 5th European Conference on Neutron Scattering, ECNS 2011
Y2 - 17 July 2011 through 21 July 2011
ER -