Members

Members Profile

M. Udagawa

Masafumi Udagawa

Associate Professor, Department of Physics, Gakushuin University

Field of Specialty:
Condensed matter theory
Specific Topics:
Theoretical study of strongly-correlated topological electronic state
Laboratory Website

E-mail : Masafumi.Udagawa[at]gakushuin.ac.jp

RESEARCH

I have studied the geometrically frustrated magnets, focusing on their anomalous transport properties, quantum phase transitions, and heavy fermion behavior. In this project, I will explore the topological aspect of frustrated magnets. In particular, I will work on pyrochlore oxides and Ir compounds, where the realization of non-trivial topological phases is expected. In these systems, I will study the stability of topological phase, the nature of topological quantum phase transition, and possible appearance of superconducting phase by carrier doping.

EDUCATION

2002
Bachelor of Science (Physics), Tokyo University
2007
Ph.D. (Science), Tokyo University

PROFESSIONAL EXPERIENCE

2005
JSPS junior research fellow (DC2)
2006
Assistant Professor, Department of Applied Physics, Tokyo University
2011
Visiting scientist at Max Planck Institute in Dresden (MPI PKS)
2015
Associate Professor, Department of Physics, Gakushuin University

HONORS AND AWARDS

2015
The 9th Young Scientist Award of the Physical Society of Japan

SELECTION OF PUBLICATIONS

"Topology and Interactions in a Frustrated Slab: Tuning from Weyl Semimetals to C>1 Fractional Chern Insulators"
E. J. Bergholtz, Zhao Liu, M. Trescher, R. Moessner and M. Udagawa,
Physical Review Letters 114, 016806-1-6 (2015).
DOI: 10.1103/PhysRevLett.114.016806

"Anomalous Hall effect from frustration-tuned scalar chirality distribution in Pr2Ir2O7"
M. Udagawa and R. Moessner,
Physical Review Letters 111, 036602-1-5 (Jul. 2013).
DOI: 10.1103/PhysRevLett.111.036602

"Non-Kondo mechanism for resistivity minimum in spin ice conduction systems"
M. Udagawa, H. Ishizuka and Y. Motome,
Physical Review Letters 108, 066406-1-5 (Feb. 2012).
DOI: 10.1103/PhysRevLett.108.066406

"Quantum melting of charge ice and non-Fermi-liquid behavior: An exact solution for the extended Falicov-Kimball model in the ice-rule limit"
M. Udagawa, H. Ishizuka and Y. Motome,
Physical Review Letters 104, 226405-1-4 (Jun. 2010).
DOI: 10.1103/PhysRevLett.104.226405

"Chirality-driven mass enhancement in the kagome Hubbard model"
M. Udagawa, and Y. Motome,
Physical Review Letters 104, 106409-1-4 (Mar. 2010).
DOI: 10.1103/PhysRevLett.104.106409