Angular correlation study of hyperfine interactions in vanadium sesquioxide V2O3
作者： M Forker , H Saitovitch , P R de Jesus Silva
DOI: 10.1088/0022-3719/17/6/014
关键词:
摘要: The hyperfine interaction at dilute 111Cd impurities in vanadium sesquioxide V2O3 has been investigated as a function of temperature by time differential perturbed angular correlation measurements. authors have observed pure electric quadrupole the metallic phase (M) and combined magnetic dipole antiferromagnetic, insulating (I). field gradient (EFG) undergoes first-order change M-I transition Tt=160K from 8.2*1017 V cm-2 I to 6.3*1017 M phase, but varies smoothly with region high-temperature resistivity anomaly. In EFG increases increasing temperature. A point-charge lattice-sum calculation suggests that this behaviour results thermal variation symmetry dimension oxygen sublattice. antiferromagnetic saturation value 15(1) kOe forms an angle beta =68(2) degrees direction principal component. vanishes Tt. Its follows Brillouin extrapolated Neel TN(TN>Tt), which depends sensitively on impurity concentration sample.
harvard.edu
sci-hub.se 参考文章(43)
D. B. McWhan, T. M. Rice, J. P. Remeika, Mott Transition in Cr-Doped V 2 O 3 Physical Review Letters. ,vol. 23, pp. 1384- 1387 ,(1969) , 10.1103/PHYSREVLETT.23.1384
J Ashkenazi, M G Vincent, K Yvon, J M Honig, Electron density studies of Ti2O3 and V2O3: experiment and theory Journal of Physics C: Solid State Physics. ,vol. 14, pp. 353- 363 ,(1981) , 10.1088/0022-3719/14/4/011
D. B. McWhan, J. P. Remeika, Metal-Insulator Transition in (V 1- x Cr x ) 2 O 3 Physical Review B. ,vol. 2, pp. 3734- 3750 ,(1970) , 10.1103/PHYSREVB.2.3734
Anton Heidemann, Bestimmung des inneren Magnetfeldes in V 2 O 3 mit Hilfe der inelastischen Spin-Flip-Streuung von Neutronen European Physical Journal A. ,vol. 238, pp. 208- 220 ,(1970) , 10.1007/BF01398035
John Bannister Goodenough, Magnetism and the chemical bond ,(1963)
G. K. Wertheim, J. P. Remeika, H. J. Guggenheim, D. N. E. Buchanan, Mössbauer Effect Study of Metal-Insulator Transition inV2O3 Physical Review Letters. ,vol. 25, pp. 94- 96 ,(1970) , 10.1103/PHYSREVLETT.25.94
J. M. Honig, G. V. Chandrashekhar, A. P. B. Sinha, Re-examination of the High-Temperature Resistivity Anomaly in (Cr 0.01 V 0.99 ) 2 O 3 Physical Review Letters. ,vol. 32, pp. 13- 15 ,(1974) , 10.1103/PHYSREVLETT.32.13
W. R. Johnson, F. D. Feiock, ATOMIC SUSCEPTIBILITIES AND SHIELDING FACTORS. Physical Review. ,vol. 187, pp. 39- 50 ,(1969) , 10.1103/PHYSREV.187.39
N. F. MOTT, Metal-Insulator Transition Reviews of Modern Physics. ,vol. 40, pp. 677- 683 ,(1968) , 10.1103/REVMODPHYS.40.677
F. J. Morin, Oxides Which Show a Metal-to-Insulator Transition at the Neel Temperature Physical Review Letters. ,vol. 3, pp. 34- 36 ,(1959) , 10.1103/PHYSREVLETT.3.34