National Metallurgical Laboratory, Madras Centre, CSIR Madras Complex, Taramani, Chennai 600113, India;
Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China;
School of Physics, University of Sydney, NSW 2006, Australia;
National Metallurgical Laboratory, Madras Centre, CSIR Madras Complex, Taramani, Chennai 600113, India;
Department of Dental Biomaterials, School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea;
Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China;
Department of Dental Biomaterials, School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea;
Department of Dental Biomaterials, School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea;