TY - JOUR
T1 - Electrical switching to probe complex phases in a frustrated manganite
AU - Asthana, Saket
AU - Fujiwara, Kohei
AU - Tanaka, Hidekazu
N1 - Funding Information:
We are grateful for financial support from a collaborative exchange program funded by the Department of Science and Technology, India (DST) , and the Japan Society for the Promotion of Science, Japan (JSPS) under the Project DST/INT/JSPS/P-134/2012 . This work was also supported by Grants-in-Aid for Young Scientists (Nos. 21676001 and 25790041 ) from the JSPS .
PY - 2014/6
Y1 - 2014/6
N2 - Electrical switching was used to investigate complex phases induced by Cr-substitution in (Pr1/3Sm2/3)2/3Sr 1/3MnO3. This system was expected to transform from a Type I (Mn4+/Mn3+≈3/7) to Type II (Mn4+/Mn 3+≈1) manganite at critical Cr content, satisfying a virtual Mn4+/Mn3+ ratio close to unity. The phase diagram of (Pr1/3Sm2/3)2/3Sr1/3Mn 0.8Cr0.2O3 including charge/spin ordered/disordered phases was probed by electrical switching. The ferromagnetic insulating phase at <~100 K, located next to the charge-ordered antiferromagnetic phase, exhibited a sudden rise in conductivity upon electric-field biasing. This resulted from the melting of charge ordering, and demonstrated the presence of a crossover regime of two coexisting magnetic orderings.
AB - Electrical switching was used to investigate complex phases induced by Cr-substitution in (Pr1/3Sm2/3)2/3Sr 1/3MnO3. This system was expected to transform from a Type I (Mn4+/Mn3+≈3/7) to Type II (Mn4+/Mn 3+≈1) manganite at critical Cr content, satisfying a virtual Mn4+/Mn3+ ratio close to unity. The phase diagram of (Pr1/3Sm2/3)2/3Sr1/3Mn 0.8Cr0.2O3 including charge/spin ordered/disordered phases was probed by electrical switching. The ferromagnetic insulating phase at <~100 K, located next to the charge-ordered antiferromagnetic phase, exhibited a sudden rise in conductivity upon electric-field biasing. This resulted from the melting of charge ordering, and demonstrated the presence of a crossover regime of two coexisting magnetic orderings.
KW - A. Charge ordered manganites
KW - D. Electronic phase separation
KW - E. Electrical switching
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U2 - 10.1016/j.ssc.2014.02.014
DO - 10.1016/j.ssc.2014.02.014
M3 - Article
AN - SCOPUS:84896760227
SN - 0038-1098
VL - 187
SP - 64
EP - 67
JO - Solid State Communications
JF - Solid State Communications
ER -