References
- Krzysek , J , Zryagin , SA , Ozarowski , A , Trofimenko , S and Telser , J . 2006 . J. Magn. Reson. , 178 : 174
- Hommerich , U , Jones , IK , Nyein , EE and Trivedi , SB . 2006 . J. Cryst. Growth , 287 : 450
- Bevilaequa , G , Martinelli , L , Vogel , EE and Mualin , O . 2004 . Phys. Rev. B , 70 : 075206
- Mossin , S , Weihe , H and Barra , AL . 2002 . J. Am. Chem. Soc. , 124 : 8764
- Zaripov , MM , Tarasov , VF , Ulanov , VA and Shakurov , GS . 2002 . Phys. Solid State , 44 : 2050
- Gavaix , AM . 1998 . J. Phys. Condens. Matter , 10 : 10263
- Boonman , ME , Mac , W , Twardowski , A , Wittlin , A , Bentum , PJM , Maan , JC and Demianiuk , M . 2000 . Phys. Rev. B , 61 : 5358
- Zhou , YY and Li , FZ . 1998 . J. Phys. Chem. Solid. , 59 : 1105
- Zhou , YY and Rudowicz , C . 1996 . J. Phys. Chem. Solid. , 57 : 1191
- Jiang , CY , Du , ML and Zhou , YY . 1994 . Phys. Rev. B , 50 : 949
- Zhou , YY and Li , FZ . 1995 . Phys. Rev. B , 51 : 14176
- Zhou , YY and Li , CL . 1993 . Phys. Rev. B , 48 : 16489
- Rudowicz , C , Du , ML , Yeung , YY and Zhou , YY . 1993 . Phys. B Condens. Matter , 191 : 323
- Dijkstra , J , Bruggen , CFV , Haas , C , RA and Groot , D . 1989 . J. Phys. Condens. Matter , 1 : 9163
- Kaufmann , U . 1976 . Phys. Rev. B , 14 : 1848
- Oliete , PB , Orere , VM and Alonso , PJ . 1996 . Phys. Rev. B , 53 : 3047
- Griffith , JS . 1961 . The Theory of Transition Metal Ions , Cambridge : Cambridge University Press .
- Avanesov , AG , Badikov , VV and Shakurov , GS . 2003 . Phys. Solid State , 45 : 1451
- Kuang , XY , Tan , XM and Zhou , KW . 2006 . Chem. Phys. Lett. , 432 : 218