TY - JOUR
T1 - Magnetic-field induced phase transitions in a weakly coupled s=1/2 quantum spin dimer system Ba3Cr2O8
AU - Kofu, M.
AU - Ueda, H.
AU - Nojiri, H.
AU - Oshima, Y.
AU - Zenmoto, T.
AU - Rule, K. C.
AU - Gerischer, S.
AU - Lake, B.
AU - Batista, C. D.
AU - Ueda, Y.
AU - Lee, S. H.
PY - 2009/4/29
Y1 - 2009/4/29
N2 - By using bulk magnetization, electron spin resonance (ESR), heat capacity, and neutron scattering techniques, we characterize the thermodynamic and quantum phase diagrams of Ba3Cr2O8. Our ESR measurements indicate that the low field paramagnetic ground state is a mixed state of the singlet and the Sz=0 triplet for H c. This suggests the presence of an intradimer Dzyaloshinsky-Moriya (DM) interaction with a DM vector perpendicular to the c axis.
AB - By using bulk magnetization, electron spin resonance (ESR), heat capacity, and neutron scattering techniques, we characterize the thermodynamic and quantum phase diagrams of Ba3Cr2O8. Our ESR measurements indicate that the low field paramagnetic ground state is a mixed state of the singlet and the Sz=0 triplet for H c. This suggests the presence of an intradimer Dzyaloshinsky-Moriya (DM) interaction with a DM vector perpendicular to the c axis.
UR - http://www.scopus.com/inward/record.url?scp=65549134310&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65549134310&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.102.177204
DO - 10.1103/PhysRevLett.102.177204
M3 - Article
AN - SCOPUS:65549134310
SN - 0031-9007
VL - 102
JO - Physical Review Letters
JF - Physical Review Letters
IS - 17
M1 - 177204
ER -