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Title: Muon spin relaxation study of the stripe phase order in La{sub 1.6{minus}x}Nd{sub 0.4}Sr{sub x}CuO{sub 4} and related 214 cuprates

Journal Article · · Physical Review, B: Condensed Matter
; ; ; ; ; ; ; ;  [1]; ; ; ;  [2]; ;  [3];  [4];  [5]
  1. Physics Department, Columbia University, New York, New York 10027 (United States)
  2. Department of Superconductivity, University of Tokyo, Bunkyo-ku, Tokyo 113 (Japan)
  3. DuPont, Wilmington, Delaware 19880-0356 (United States)
  4. Department of Physics, University of California, Riverside, California 92521 (United States)
  5. MS K764, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We present zero-field muon spin relaxation ({mu}SR) measurements of La{sub 1.6{minus}x}Nd{sub 0.4}Sr{sub x}CuO{sub 4} with x=0.125,0.15,0.2;thinspLa{sub 1.475}Nd{sub 0.4}Ba{sub 0.125}CuO{sub 4},thinspLa{sub 1.875}Ba{sub 0.125}CuO{sub 4}, and La{sub 1.875}Ba{sub 0.125{minus}y}Sr{sub y}CuO{sub 4} with y=0.025,0.065. All of the samples with dopant concentrations x+y{le}0.15 show similar static magnetic order with coherent precession of the muon spins below T{sub N}{approx}30thinspK, with a T{r_arrow}0 ordered Cu moment {approx}0.3{mu}{sub B}. The samples with x=0.20 show no coherent precession but manifest two distinct relaxation regimes, typical of quasistatic magnetism. We then present transverse-field {mu}SR hysteresis measurements of the La{sub 1.45}Nd{sub 0.4}Sr{sub 0.15}CuO{sub 4} and La{sub 1.4}Nd{sub 0.4}Sr{sub 0.2}CuO{sub 4} systems that show a large superconducting response below approximately 7 K and 12 K, respectively. We argue that superconductivity and magnetic order coexist in the x=0.15 system. {copyright} {ital 1998} {ital The American Physical Society}

OSTI ID:
659328
Journal Information:
Physical Review, B: Condensed Matter, Vol. 58, Issue 13; Other Information: PBD: Oct 1998
Country of Publication:
United States
Language:
English