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        <title>&lt;b&gt;SMPL &lt;/b&gt;&lt;br&gt;&lt;font size=3&gt;Smart Material Physics Lab&lt;/font&gt;</title>
        <description></description>
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        <title><b>SMPL </b><br><font size=3>Smart Material Physics Lab</font></title>
        <link>http://smpl.pknu.ac.kr/wiki/</link>
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        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>another</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=another&amp;rev=1662535369&amp;do=diff</link>
        <description>This is another page</description>
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        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
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        <title>autorun_virus</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=autorun_virus&amp;rev=1662535369&amp;do=diff</link>
        <description>Window XP Autorun Virus

윈도우 XP 시스템상 USB 연결시 몇가지 필요한 동작을 하게 만든 Autorun 파일을 감염시키는 바이러스의 일종으로,

해결법으로는 USB에 Autorun.inf이름의 dummy 파일을 생성하거나 무료 백신 프로그램 (Avast, V3은 2022년기준 XP지원 종료)을 사용하여 해결한다.</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
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        <title>computational_analysis</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=computational_analysis&amp;rev=1662535369&amp;do=diff</link>
        <description>Quantum Espresso

PWscf

	*  pw.x Guide
	*  pp.x

Molecular Dyanamics Simulation

	*  LAMMPS
	*  NAMD

Linux Shell Command

	*  문자열 앞뒤의 공백제거: sed -e &#039;s/^ *g&#039; -e &#039;s/ *$g&#039;
	*  Regular expression

Useful Resources for Computational Physics

	*  Brillouin-zone databases of space groups
	*  Xcrysden
	*  VESTA
	*   k-path finder
	*   QE on github
	*   Google Colab
	*</description>
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        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>energy_materials</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=energy_materials&amp;rev=1662535369&amp;do=diff</link>
        <description>Energy applications of functional thin films</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ga2o3</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=ga2o3&amp;rev=1662535369&amp;do=diff</link>
        <description>Polymorphic Ga2O3 epitaxial thin films</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>hybrid_cluster_systems_multi_nodes_cpu_gpu</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=hybrid_cluster_systems_multi_nodes_cpu_gpu&amp;rev=1662535369&amp;do=diff</link>
        <description>Resources for Computational Analysis

	*   AMD Optimizing CPU Libraries (AOCL)
	*  Intel® oneAPI Toolkits
	*   NVIDIA HPC SDK
	*  Open MPI: Open Source High Performance Computing 
	*   SLRUM workload manager</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T08:23:19+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>krf_laser_compex_205f</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=krf_laser_compex_205f&amp;rev=1662538999&amp;do=diff</link>
        <description>Log book for Laser (COMPEX205F)

# New Fill

	*  3,001,625 shots (2022-09-05)</description>
    </item>
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        <dc:date>2023-06-16T07:09:10+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ligaku_smartlab</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=ligaku_smartlab&amp;rev=1686899350&amp;do=diff</link>
        <description>Rigaku Smartlab II

	*  1D Reciprocal Space Mapping Error
	*  Optics Allignment(PB) Peak Search Error
	*  Unknown Error Alarm

XRD issue History

- 장비 도입후 발생한 에러와 문제점들을 모두 기록해두자 (사진과 캡춰화면 원인과 문제점등).

	*  2022. 06. 21 XRD Intensity가 이전과 다르게 현저히 떨어짐 (Mirror alignment 이후 바로 정상화)</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ligaku_smartlab_1d_reciprocal_space_mapping_error</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=ligaku_smartlab_1d_reciprocal_space_mapping_error&amp;rev=1662535369&amp;do=diff</link>
        <description>1D Reciprocal Space Mapping Error

현재 SMPL에서 사용 중인 Smartlab의 1D RSM을 찍고자 하는 경우 생기는 error로

Sequence는 Optics Allignment(PB)→Sample Allignment (Thin film)→Rocking Curve Pre-Measurement→1D RSM
순으로 진행되었으며, Rocking Curve measurement는 Thin Film system에서 substarte의 peak을 기준으로 측정 하였다.</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-07-10T00:35:11+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>mpms_default_configurations</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=mpms_default_configurations&amp;rev=1688949311&amp;do=diff</link>
        <description>MPMS default configurations

Calibration factors

♦ Evercool system

	*  Level Max: 60%, Min: 58% (current setting: Jul. 10, 2023)




- 정상적인 evercool cycle이 이루어지는지 주기적인 확인이 필요하다.

♦ He Gas Cylinder

[ ] - 레큘레이터 충전압과 output 쪽의 압력이 지정된 값으로 되어있는지 확인.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=mpms_mpms-xl7&amp;rev=1688948358&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-07-10T00:19:18+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>mpms_mpms-xl7</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=mpms_mpms-xl7&amp;rev=1688948358&amp;do=diff</link>
        <description>Log book for MPMX-XL7

MPMS default configurations

# MPMS He leak 관련 작업

	*  Scroll pump (Agilent SH100 --&gt; SH110) 교체 후 He 소모량이 하루에 1% 정도로 급증하여 연결작업을 다시 진행.

# MPMS Helium Cylinder 압력 부족

	*  He filling 과정에 문제가 생길경우 다음과 같은 에러가 뜨면서 He filling 과정이 중단된다. (auto level control이 자동으로 중단된다.)</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-06-16T07:10:03+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>mpms_squid_magnetometer</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=mpms_squid_magnetometer&amp;rev=1686899403&amp;do=diff</link>
        <description>Magnetic Properties Measurement System (MPMS) (수정중)

- Quantum Design MPMS-XL7 model with EverCool system.

MPMS trobleshooting

- MPMS 관련 문제, 해결책, 원인에 대해 기록하자.

	*  Dewar pressure overshooting and/or undershooting</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2023-07-10T00:47:16+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>octahedral_control</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=octahedral_control&amp;rev=1688950036&amp;do=diff</link>
        <description>Octahedral engineering



* Strong modulation between crystal symmetry and the corresponding RuO6 octahedral configurations were verified by structural model calculations based on the diffraction data of 20 individual half-order peaks. This proves that the compressively strained SrRuO</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ohmic_contact</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=ohmic_contact&amp;rev=1662535369&amp;do=diff</link>
        <description>Ohmic contact

반도체와 금속사이의 접합 방식으로써 두 물체의 energy band가 Fermi level근처로 맞춰지면서 생기는 contact중 하나이다.

두 물질 사이에서 전압을 인가할 시 V=IR곡선을 따르며 별다른 장벽이 생기지 않는다.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=optics_allignment_pb_peak_search_error&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>optics_allignment_pb_peak_search_error</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=optics_allignment_pb_peak_search_error&amp;rev=1662535369&amp;do=diff</link>
        <description>Optics Allignment(PB) Peak Search Failed Alarm

SMPL에서 사용중인 Ligaku Smartlab 장비의 Optics Allignment(PB) 도중 Peak Search Failed Alarm 대한 보고이다.

SMPL의 Optics Allignment(PB) 실행 조건은 다음과 같다.

(TBD)

증상</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=pulsed_laser_deposition_pld&amp;rev=1704691774&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2024-01-08T05:29:34+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>pulsed_laser_deposition_pld</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=pulsed_laser_deposition_pld&amp;rev=1704691774&amp;do=diff</link>
        <description>PLD #1

[Temperature control system]

	*  TPR (TPR-2G35L 220V 35A, phase control, 한영넉스)
	*  Programmable Temperature controller (NP-200)</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=r-t_van_der_pauw_method&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>r-t_van_der_pauw_method</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=r-t_van_der_pauw_method&amp;rev=1662535369&amp;do=diff</link>
        <description>Van der Pauw Method



온도에 따르는 물질의 저항을 측정하는 방법으로써 물질의 전기적 특성 및 물질의 변화점 (Metal to Insulator Transition)을 찾는데 이용한다.

Relation



주의사항

반도체를 측정하고자 할 시 측정 물질과 구리선(또는 gold wire)사이에 Ohmic contact 조건이 맞는지 확인해야한다.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=ruthenate&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ruthenate</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=ruthenate&amp;rev=1662535369&amp;do=diff</link>
        <description>Emergent Physical Properties of artificially structured Ruthenate thin films</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=s-vdwe&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>s-vdwe</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=s-vdwe&amp;rev=1662535369&amp;do=diff</link>
        <description>Spontaneous van der Waals Epitaxy (s-vdWE)

2차원 층상형 구조(2D layered structure)를 갖는 물질군들은 하나의 결정구조내에 강한 covalent &amp; ionic 결합을 갖는 층과 각층들간에는 약한 van der Waals 결합을 동시에 가지고 있다.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=shottky_contact&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>shottky_contact</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=shottky_contact&amp;rev=1662535369&amp;do=diff</link>
        <description>Schottky contact

반도체와 금속사이의 접합 방식으로써 두 물체의 energy band가 Fermi level근처로 맞춰지면서 생기는 contact중 하나이다.

Ohmic contact과 달리 금속의 일함수가 반도체의 일함수보다 높아 접촉면사이에 장벽이 생긴다.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=spectroscopic_ellipsometry&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>spectroscopic_ellipsometry</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=spectroscopic_ellipsometry&amp;rev=1662535369&amp;do=diff</link>
        <description>주의사항

	*  Sample align에서 crosshair를 맞출 때 X,Y가 0±1 이되게 맞춘다. 단, noise가 ±0.3 보다 크면 ‘gain’ 값을 확인해야 한다. 만약, Gain 값이 10이상인 경우 beam을 제대로 detect하지 못하고 있는 것이다.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=start&amp;rev=1704691541&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2024-01-08T05:25:41+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>start</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=start&amp;rev=1704691541&amp;do=diff</link>
        <description>SMPL 위키입니다.

이곳은 SMPL에서 관심을 가지고 연구하고 있는 주제들과 Applied Physics, Scientific Researches &amp; State-of-the-art Technology와 관련된 내용입니다.

We build from the scratch and explore for the better understanding of nature.</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=unknown_alarm&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>unknown_alarm</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=unknown_alarm&amp;rev=1662535369&amp;do=diff</link>
        <description>Unknown Error Alarm

Smartlab 가동 중 알 수 없는 이유로 Alarm이 뜨는경우에 대한 문서이다.

SMPL Unknown Alarm 원인 목록

	*  Filament 수명이 다 한 경우 (Call your Service Center)
	*  칠러가 꺼지거나 꺼져있는 경우</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=vdp_r-t&amp;rev=1663030556&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-13T00:55:56+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>vdp_r-t</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=vdp_r-t&amp;rev=1663030556&amp;do=diff</link>
        <description>vdP R-T system

	*  Periodic check (Sep. 10, 2022): ok</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=window_xp&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>window_xp</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=window_xp&amp;rev=1662535369&amp;do=diff</link>
        <description>*  Autorun Virus</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=x-ray_diffraction_technique&amp;rev=1662535369&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-07T07:22:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>x-ray_diffraction_technique</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=x-ray_diffraction_technique&amp;rev=1662535369&amp;do=diff</link>
        <description>X-ray Diffraction Technique (수정중)

X-ray Diffraction Technique은 Bragg&#039;s law를 활용한 구조분석 기법이다.

외부 링크

X-ray reflection
&lt;https://wiki.aalto.fi/display/SSC/X-Ray+Reflection&gt;

Grazing Incidence XRD (GIXRD)
&lt;https://wiki.aalto.fi/display/SSC/Grazing+incidence+XRD&gt;

XRD의 원리와 응용 번역본
&lt;https://blog.naver.com/scyoon3973/221562006117&gt;</description>
    </item>
    <item rdf:about="http://smpl.pknu.ac.kr/wiki/doku.php?id=xrd_smartlab_ii&amp;rev=1684496068&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-05-19T11:34:28+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>xrd_smartlab_ii</title>
        <link>http://smpl.pknu.ac.kr/wiki/doku.php?id=xrd_smartlab_ii&amp;rev=1684496068&amp;do=diff</link>
        <description>Log book for XRD (Smartlab II)

♦ Maintenance

Chiller (heat exchanger)

	*  Water &amp; Ion filters were replaced with 80L of the pure water (2022-09-02) 

Hypix Server (2D detector control)

	*  사용후에는 반드시 셧다운 시켜둘 것. 서버의 냉각팬에 이상이 있어서 HP서버를 한번 교체하였음.</description>
    </item>
</rdf:RDF>
