Magnetic order and electronic phase diagrams of electron-doped copper oxide materials.
Magnetic order and electronic phase diagrams of electron-doped copper oxide materials.
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电子掺杂氧化铜材料的磁序和电子相图。
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
Seaman
中科院分区：
文献类型：
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作者：
Luke;Le;Sternlieb;Uemura;Brewer;Kadono;Kiefl;Kreitzman;Riseman;Stronach;Davis;Uchida;Takagi;Tokura;Hidaka;Murakami;Gopalakrishnan;Sleight;Subramanian;Early;Markert;Maple;Seaman
We report muon spin relaxation and rotation measurements on sintered ceramic samples of ${mathrm{Nd}}_{2mathrm{ensuremath{-}}mathit{x}}$${mathrm{Ce}}_{mathit{x}}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$ and a large single crystal of ${mathrm{Nd}}_{2}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$. We find an electronic phase diagram that is quite similar to that of hole-doped superconductors such as ${mathrm{La}}_{2mathrm{ensuremath{-}}mathit{x}}$${mathrm{Sr}}_{mathit{x}}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$, although the doping of electrons into the system is less efficient in destroying the static moments on the copper ions. Static magnetic order appears in ${mathrm{Nd}}_{2}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$ below about 250 K; two spin reorientations are seen at T=75 and 35 K, providing information about the muon site in this material.
We report muon spin relaxation and rotation measurements on sintered ceramic samples of ${mathrm{Nd}}_{2mathrm{ensuremath{-}}mathit{x}}$${mathrm{Ce}}_{mathit{x}}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$ and a large single crystal of ${mathrm{Nd}}_{2}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$. We find an electronic phase diagram that is quite similar to that of hole-doped superconductors such as ${mathrm{La}}_{2mathrm{ensuremath{-}}mathit{x}}$${mathrm{Sr}}_{mathit{x}}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$, although the doping of electrons into the system is less efficient in destroying the static moments on the copper ions. Static magnetic order appears in ${mathrm{Nd}}_{2}$${mathrm{CuO}}_{4mathrm{ensuremath{-}}mathit{y}}$ below about 250 K; two spin reorientations are seen at T=75 and 35 K, providing information about the muon site in this material.