Magnetic Properties of Single Crystalline Ge1-xMnx Nanowires. Ieee Transactions on Magnetics

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TY  - JOUR
  - Kazakova, O; van der Meulen, MI; Petkov, N; Holmes, JD
  - 2009
  - October
  - IEEE Transactions On Magnetics
  - Magnetic Properties of Single Crystalline Ge1-xMnx Nanowires. Ieee Transactions on Magnetics
  - Validated
  - ()
  - 45
  - 10
  - 4085
  - 4088
  - A detailed study of the magnetic properties of single crystalline Ge1-xMnx nanowires is presented. Free-standing nanowires with an averaged diameter of 30-180 nm and several microns in length were grown by a supercritical fluid-liquid-solid method. The absence of various Ge-Mn crystallographic precipitates and oxide shells around the wire was confirmed by a number of structural techniques. Magnetization measurements demonstrate a clear ferromagnetic ordering at room temperature. However, the net magnetic moment is relatively low, with the maximum measured saturation moment per Mn atom in the order of 0.7 mu(B) at T = 300 K. The weak room-temperature ferromagnetism most likely originates from areas rich in diluted Mn atoms. The magnetic properties of Ge1-xMnx nanowires can be qualitatively explained by propagation and the merge of bound magnetic polarons, which seed initially in areas with the largest local concentration of dispersed Mn ions.
  - 0018-9464
DA  - 2009/10
ER  - 
@article{V17688936,
   = {Kazakova, O and  van der Meulen, MI and  Petkov, N and  Holmes, JD},
   = {2009},
   = {October},
   = {IEEE Transactions On Magnetics},
   = {Magnetic Properties of Single Crystalline Ge1-xMnx Nanowires. Ieee Transactions on Magnetics},
   = {Validated},
   = {()},
   = {45},
   = {10},
  pages = {4085--4088},
   = {{A detailed study of the magnetic properties of single crystalline Ge1-xMnx nanowires is presented. Free-standing nanowires with an averaged diameter of 30-180 nm and several microns in length were grown by a supercritical fluid-liquid-solid method. The absence of various Ge-Mn crystallographic precipitates and oxide shells around the wire was confirmed by a number of structural techniques. Magnetization measurements demonstrate a clear ferromagnetic ordering at room temperature. However, the net magnetic moment is relatively low, with the maximum measured saturation moment per Mn atom in the order of 0.7 mu(B) at T = 300 K. The weak room-temperature ferromagnetism most likely originates from areas rich in diluted Mn atoms. The magnetic properties of Ge1-xMnx nanowires can be qualitatively explained by propagation and the merge of bound magnetic polarons, which seed initially in areas with the largest local concentration of dispersed Mn ions.}},
  issn = {0018-9464},
  source = {IRIS}
}
AUTHORSKazakova, O; van der Meulen, MI; Petkov, N; Holmes, JD
YEAR2009
MONTHOctober
JOURNAL_CODEIEEE Transactions On Magnetics
TITLEMagnetic Properties of Single Crystalline Ge1-xMnx Nanowires. Ieee Transactions on Magnetics
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME45
ISSUE10
START_PAGE4085
END_PAGE4088
ABSTRACTA detailed study of the magnetic properties of single crystalline Ge1-xMnx nanowires is presented. Free-standing nanowires with an averaged diameter of 30-180 nm and several microns in length were grown by a supercritical fluid-liquid-solid method. The absence of various Ge-Mn crystallographic precipitates and oxide shells around the wire was confirmed by a number of structural techniques. Magnetization measurements demonstrate a clear ferromagnetic ordering at room temperature. However, the net magnetic moment is relatively low, with the maximum measured saturation moment per Mn atom in the order of 0.7 mu(B) at T = 300 K. The weak room-temperature ferromagnetism most likely originates from areas rich in diluted Mn atoms. The magnetic properties of Ge1-xMnx nanowires can be qualitatively explained by propagation and the merge of bound magnetic polarons, which seed initially in areas with the largest local concentration of dispersed Mn ions.
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ISBN_ISSN0018-9464
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