"S. Okubo,Tomonari Ueda,H. Ohta,Weimin Zhang,T. Sakurai,Nozomi Onishi,Masaki Azuma,Yuichi Shimakawa,Hiroki Nakano,T. Sakai","Dzyaloshinsky-Moriya interaction and field-induced magnetic order in an antiferromagnetic honeycomb lattice compound Bi3Mn4O12(NO3) studied by high-field electron spin resonance",,"PHYSICAL REVIEW B",,"Vol. 86","No. 140401","pp. 1-4",2012,Oct.