Electronic self-organization in the single-layer manganite $$\rm Pr_{1-x}Ca_{1+x}MnO4$$
- ORNL
- National Institute of Standards and Technology (NIST)
- Spin Superstructure Project, ERATO, Japan Science and Technology, Tsukuba 305-85
- University of Tokyo, Tokyo, Japan
We use neutron scattering to investigate the doping evolution of the magnetic correlations in the single-layer manganite $$\rm Pr_{\it 1-x}Ca_{\it 1+x}MnO_4$$, away from the $x=0.5$ composition where the CE-type commensurate antiferromagnetic (AF) structure is stable. We find that short-range incommensurate spin correlations develop as the system is electron doped ($x<0.5$), which coexist with the CE-type AF order. This suggests that electron doping in this system induces an inhomogeneous electronic self-organization, where commensurate AF patches with $x=0.5$ are separated by electron-rich domain walls with short range magnetic correlations. This behavior is strikingly different than for the three-dimensional $$\rm Pr_{\it 1-x}Ca_{\it x}MnO_3$$, where the long-range CE-type commensurate AF structure is stable over a wide range of electron or hole doping around $x=0.5$.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 966401
- Journal Information:
- Physical Review Letters, Vol. 103, Issue 16; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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